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Owner review 17b: clearance of 난장, 두레, 품앗이 and 또래 (2026-10-13) ​

Status: Draft · Date: 2026-10-13 · Research, no decision. A knock-out search, not legal advice and not a full clearance. Classes 9, 35, 41, 42.

Owner, review 17 (verbatim). "Or 난장, 두레, 품앗이, 또래". This came right after they settled on Mokoji in English and 모꼬지 in Korean, which another lane is clearing separately.

Verdicts ​

WordVerdictBest spellingReason in one line
또래 (peers)Usable with conditionsTtoraeNo live identical mark in KR, US or EU; every address is free; but the vowel ae and tense ㄸ break the owner's earlier shape rules, and the word is descriptive for any peer-matching feature.
난장 (lively fair)Usable with conditionsNanjangNo live identical mark in our classes (only a pub mark in class 43); .app, .io, .co and get free; but the dictionary's main senses are "chaos" and "flogging", and there are compound marks in 35, 9 and 41.
품앗이 (labour swap)RiskyPumasiA pending identical 품앗이 mark for a messaging app (class 38); three existing apps already carry the exact name; the word is generic for mutual aid; three Hangul syllables.
두레 (work group)BlockednoneA live identical 두레 (DOORE) mark covers marketing and shopping services (class 35) and one covers messaging; live DURE and DOORE marks in KR, EU and US; weak as a word; Dure the app already exists.

Conflicts that decide the verdicts are in section 1. Taste calls (shape, vowels) are the owner's.

0. Services, pacing and limits ​

Every service was called at least 8 s apart (the other lane shared the services). No service refused, so nothing is marked "not checked" except where stated.

ServiceResultQuery (re-runnable)
TMview7 Latin queries, HTTP 200POST https://www.tmdn.org/tmview/api/search/results, browser User-Agent, Origin: https://www.tmdn.org, Referer: https://www.tmdn.org/tmview/, body {"page":"1","pageSize":"100","criteria":"C","basicSearch":"<latin lowercase>","fNiceClass":["9","35","41","42"],"fTMStatus":["Registered","Filed"]}
KIPRIS4 Hangul queries (up to 3 pages of 30), plus 3 extra, HTTP 200GET https://www.kipris.or.kr/khome/search/searchResult.do?tab=trademark (cookie jar), then POST https://www.kipris.or.kr/kdtj/grrt1000a.do?method=searchTM with queryText=<hangul>&expression=<hangul>&sortField=RANK&sortState=Desc&currentPage=<n>&numPerPage=30
USPTO7 Latin queries, HTTP 200POST https://tmsearch.uspto.gov/prod-stage-v1-0-0/tmsearch, {"query":{"bool":{"must":[{"match":{"wordmark":{"query":"<Latin>"}}}],"filter":[{"term":{"alive":true}}]}},"size":100}
iTunesUS, KR, JP, 11 terms, HTTP 200curl "https://itunes.apple.com/search?entity=software&limit=50&country=<us|kr|jp>&term=<term>". Zero-result queries were repeated with limit=100&media=software and stayed at zero.
Google PlayKR and US, 11 terms, HTTP 200curl -L "https://play.google.com/store/search?q=<term>&c=apps&hl=<ko|en>&gl=<KR|US>", title read from span.DdYX5, developer from span.wMUdtb
Domainsall 7 spellingscurl -sL https://rdap.org/domain/<d> (200 taken, 404 free); curl -sL https://rdap.kisa.or.kr/domain/<d>; printf "<d>\r\n" | nc whois.nic.io 43 and nc whois.registry.co 43
HandlesX, YouTube, TikTok, Naver Blogcurl -sL -o /dev/null -w %{http_code} https://x.com/<h> and https://www.youtube.com/@<h> (404 free, 200 taken); TikTok curl -sL https://www.tiktok.com/@<h>, read "statusCode" (10221 free; 0 taken; 10223 restricted); Naver curl -sL https://rss.blog.naver.com/<name>.xml (empty <title/> free)
Dictionaries표준국어대사전, 우리말샘, Wiktionary, Urban Dictionary, Wikipedia, Namuwikihttps://stdict.korean.go.kr/search/searchResult.do?pageSize=10&searchKeyword=<hangul>, https://opendict.korean.go.kr/search/searchResult?query=<hangul>, https://en.wiktionary.org/w/api.php?action=parse&prop=wikitext&page=<w>, https://api.urbandictionary.com/v0/define?term=<w>, https://namu.wiki/w/<hangul>

Limits that apply to every verdict:

  • Sound-alike (칭호) is only partly tested. TMview matches fuzzily on the Latin spelling; KIPRIS and USPTO match the spelling. A 변리사 must run the phonetic search before any filing.
  • KIPRIS was read by rank, not exhaustively. Rows read: 난장 60 of 110, 두레 90 of 8,981, 품앗이 87 of 87, 또래 60 of 355. Exact titles rank first, but a live exact mark on a later page of 두레 or 또래 cannot be ruled out.
  • Goods were read from the KIPRIS goods text and similarity code (S = services, G = goods). Class 43 means restaurants and pubs, class 38 telecom and messaging.
  • TikTok returned a bot-wall page for 8 handles on the first pass; I re-ran them with a phone User-Agent and got a status code for 7 of 8. Handle checks are weak in both directions.
  • Not tried: WIPO Global Brand Database, JPO, Instagram, Threads.
  • The Hangul wordmark and its Latin spelling are one mark for the owner's purposes, but each office files them separately.

1. Trademarks ​

Status as of 2026-10-13. KR = KIPO via KIPRIS, EU = TMview.

난장 / Nanjang ​

  • KR, identical Hangul 난장, live: 4120140038423, 손우빈, registered, pub, café and restaurant services (class 43; coffee and drinks, class 30 and 32/33). Outside our four classes. Every other exact 난장 mark read is dead (소멸), mostly 사단법인 사물놀이한울림 (the Samulnori festival series 난장) and (주)난장컬쳐스.
  • KR compounds with Nanjang or 난장 as the lead element, live:
    • Nanjang Art class, 4020240195792, class 41 (김수련).
    • 푸드난장 (Food Nanjang), 4020170028785, class 35 retail (해들녘애).
    • Kkebee Nanjang, class 9 (창작마을).
    • 난장판, 4020250030843, class 35 franchise consulting (박윤승).
    • 머드난장 (Boryeong city) and 문화장터 아리랑난장 (Culture Expo Foundation), both event organising in class 41.
    • Pub-trade compounds: 난장전, 난장까야, 노가리 난장판.
  • US: 0 live marks. EU (TMview): no EU or other foreign hit beyond the KR rows above.
  • Distinctiveness. The festival and market sense is arbitrary for a tennis-club app and suggestive only for event services (class 41 event organising: 머드난장, 아리랑난장 show the word is already read that way). The words 난장판 and 난장 describe a mess and are common in the pub trade, so KIPO is likely to treat any further compound as a crowded field in class 43, but not in 9 or 42.

두레 / Dure, Doore ​

  • KR, identical Hangul 두레, live:
    • 두레 (DOORE), 4020180151452, registered 2020, 김병호 and 이승철. Services: online shopping mall, marketing, advertising, public relations, franchise business management, sales agency of toys, books, cosmetics, heaters, exercise equipment, phones, medical devices. Class 35, same class as ours.
    • 두레 (DOORE), 4020180151453, registered 2019, same owners. Social networking, chat rooms, messaging, community services through smartphone apps. Class 38, an app function.
    • 두레, 4119970007690 and two re-registrations (5620070020092, 5120070002403), 양순석 and 한윤근, patent attorney and IP advice. Class 45.
  • KR, Latin DURE live: DURE, 4120160040455, class 35, 두레공예협동조합. Janchi Dure, 4020170083485, class 41, 잔치활성화협동조합. DOORE, 4020180151452, class 35 (the same filing as 두레 (DOORE) above).
  • EU and elsewhere: DURE, EM 019148624, classes 9 and 12 (registered). DURE, TR filed, class 35. Dure Technologies, IN, classes 35 and 42. DOORE, IL 329954, class 9 (auto equipment).
  • US: DOORE, serial 99825736, filed 2026-05-15, intent-to-use, NEXTGEN DIGITAL LLC, class 9, "downloadable mobile applications for creating, managing, and receiving location-based reminders". A pending app mark for the same spelling. DOORE also has a live iOS app (section 2). The US has no live DURE mark in our classes (only SEN-DURE, ALUM-A-DURE and TOP DURE in unrelated classes).
  • Other 두레 marks: KIPRIS lists 8,981 rows. The ones read include 두레생협연합회 (a registered national co-op federation mark, class 35), 두레마을, 희망두레 두레별 (a government small-business agency mark in classes 9, 35 and 39), 두레블 (travel, class 39), 두레월드 (books, class 9 and 16) and 두레망 (pending, class 38).
  • Distinctiveness. Weak. 두레 is the dictionary word for a village labour association (표준국어대사전 sense 3), and for 풍물놀이 (sense 4). For club, cooperative and community services, a 심사관 can call it descriptive of the service's nature (a group working together), which is the same trouble that review 13 raised for 마당. Namuwiki calls the usage "almost dead", so consumers may read it as a cooperative brand name rather than a coined one, which also leaves it with a strong co-op association (두레생협, 두레마을).

품앗이 / Pumasi ​

  • KR, identical Hangul 품앗이, live or pending:
    • 품앗이, 4020250115681, pending since 2025-07-02, 임현진, class 38: data, multimedia and message transmission, instant messaging, social chat rooms, "text, photo and video through a smartphone application".
    • 품앗이, 4120070032320, 4120070032319 and 4020070063586, 이현철, registered: farm management, fruit wholesale and retail, fresh fruit. Class 44, 35 (retail), 31.
  • KR compounds: 로또 품앗이 (LOTTO10), 송옥자, registered, classes 9 (software and apps for lottery number recommendation), 35, 36 and 41. 품앗이주차, 김기성, class 38 social network app. 카드 계 품앗이 (M.W.R), class 35 advertising. 품앗이마을 (a social cooperative), retail.
  • US: 0. EU: 0 Latin hits. TMview shows only 푸마싱, 4020190018214 and 4020190018213, 칸컴스, registered 2019, classes 41 and 9. That is a different Hangul word one sound away (푸마싱 versus 푸마시), so a 칭호 comparison could be raised against the Latin sound of Pumasi, but the Hangul mark 품앗이 is spelled and pronounced differently.
  • Distinctiveness. Weak for any service about mutual help, barter, shared childcare or shared costs. 품앗이 is the standard word for exchanging labour in turn (표준국어대사전). Namuwiki notes it is in current use as an idiom for mutual help ("문화품앗이", "육아품앗이"). For a club-operations app, KIPO is likely to find it suggestive, not descriptive, but marks and apps that already use it for such things (돌봄품앗이, 주차비 품앗이, 블로거 품앗이, 피드백 품앗이) crowd the word.

또래 / Ttorae, Torae, Ddorae ​

  • KR, identical Hangul 또래, live: none found. All 16 exact 또래 rows read are dead (소멸, 거절 or 포기): 동진기업, 롯데지주, 태하상사, 아모레퍼시픽, 또래종합식품, CJ and others.
  • KR compounds, live:
    • 또래오래 (and 또래오래 Chicken, 또래오래 더블치킨, 또래오래 팝콘치킨), 농협목우촌 and 농업협동조합중앙회, chicken restaurants, meat and paper goods (classes 29, 43, 16). Not our classes. TOREORE is the owner's spelling of the same brand.
    • 또래김밥, 4120060012673, class 43.
    • 또래놀이, 키즈플러스, registered, classes 16 and 9 (printed and educational goods).
    • 솔리언 또래 상담, 한국청소년상담원, registered, classes 41 and 45, the national youth peer-counselling programme.
    • 또래방 (TTOLAEBANG), 1993 filing, baby-care goods (old record).
  • US: 0 for Ttorae, Torae and Ddorae. EU (TMview): Ttorae 1 hit (an unrelated Japanese mark), Torae 122 fuzzy hits and none identical (nearest: TORAEAI, JP, filed 2026, classes 9, 16, 35, 41, 42, 44, 西岡翔伍; Restorae, NO), Ddorae 0.
  • Distinctiveness. 또래 means "peers" (표준국어대사전). It is arbitrary for tennis-club operations, but descriptive for any feature that matches people of the same age or level (the KR App Store already has 티타 - 마음 맞는 또래 친구 and 가람 - 또래 커뮤니티). Keep peer-matching out of the store line to avoid that.

Summary of trademark conflicts ​

WordIdentical live or pending, our classesIdentical live, nearby classCompounds with the word as lead
난장noneclass 43 pub markclasses 35, 9, 41
두레KR 두레 (DOORE) class 35; KR DURE class 35; EM DURE class 9; US DOORE class 9 (pending)KR 두레 (DOORE) class 38; class 45classes 35, 9, 16, 38, 39
품앗이none in 9, 35, 41, 42; class 35 fruit retail (unrelated)KR 품앗이 class 38 pending (messaging app)class 9 (로또 품앗이 software), class 38
또래nonenoneclasses 43, 29 (food), 41 and 45 (youth counselling), 16, 9

2. App stores ​

Exact name means the app title before any colon or dash.

TermiTunes US / KR / JPGoogle Play KR / US
Nanjangno exactno exact
난장no exact (0 results in all three stores)no exact
Dureno exactexact Dure (Bigel) in KR and US; Dure 두레: 더치페이 정산 · 여행 엔빵 계산기 / Dure: Bill Splitter & Expenses (NJHouse), a group bill-splitting app
DooreUS exact DoorE, Productivity, 4 ratings, NEXTGEN DIGITAL LLC (same owner as the pending US mark)דורי - Doore, L.D. Israel Auto Equipment (title word, not the exact name)
두레no exact; compounds: 두레몰 (205 KR ratings), 두레블, 두레샵, (주)에코두레no exact; 두레 물류 QR (word in title)
Pumasino exact (0 results in KR and JP)no exact
품앗이exact 품앗이 - AI 경조사 추천 & 관리, Finance, jinhyeok choi, 0 to 1 rating in US, KR and JP; compounds: 문화품앗이, 품앗이장부, 돌봄품앗이 (우주펫, 73 ratings), 블로그톡 - 블로거 품앗이 커뮤니티exact 품앗이 - 축의금 노트, 경조사비 장부 (park jinhyeong) in KR; also 애드브이 품앗이, 주차비 품앗이, 안드로이드 비공개 테스트 & 피드백 품앗이
Ttorae, Torae, Ddoraeno exact (Ddorae, Ttorae: 0 results in KR and JP)no exact
또래no exact; compounds: 또래오래 (520 KR ratings, the chicken chain), 또래지갑, 또래지도, 또래숲no exact; 티타 - 마음 맞는 또래 친구

Conditions that arise: 품앗이, Dure and Doore each have an exact-name app. The 품앗이 apps are small and in other categories (finance and event-gift notes, under 20 ratings), so on their own they are a condition; the NJHouse Dure is a group-payment app in a category a club app touches (fee splitting).

3. Domains ​

Taken means the RDAP or whois record exists. For taken .com addresses I read the homepage once.

Spelling.com.app.io.co.kr.co.krget<name>.com
Nanjangtaken (Inames Co., 2012), homepage gave HTTP 436, unreadfreefreefreetakentakenfree
Duretaken (GoDaddy, 1998), redirects to a live blogtaken (Cloudflare, 2024)taken (GoDaddy)taken (Spaceship)takentakenfree
Dooretaken (GoDaddy, 1998), redirects to /lander (parked)freefreefreetakentakenfree
Pumasitaken (HOSTING.KR, 2007), redirects to /lander (parked)freetaken (Gandi)freetakentakenfree
Ttoraefreefreefreefreefreefreefree
Toraetaken (Network Solutions, 2021), HTTP 406freefreefreefreetakenfree
Ddoraetaken (NameBright, 2013), for sale on HugeDomainsfreefreefreetakentakenfree

4. Handles ​

Cells show the services where the handle is free (X / YouTube / TikTok). - means taken.

Spelling<name> free on<name>app free onNaver Blog
NanjangXX / YT / TTfree
Dure-X / YT / TTfree
DooreYTX / YT / TTfree
PumasiYTX / YT / TTfree
Ttorae-X / YT / TTfree
ToraeYTX / YT / TTtaken (torae님의 블로그)
DdoraeXX / YT / TTfree

No spelling has the bare name free on all three. All seven have <name>app free on all three, as in earlier reviews. TikTok: dure returned 10223 (restricted), the rest of the bare names returned 0 (taken). X answers 200 for suspended and squatted names too.

5. Meaning and usage ​

Dictionary senses ​

  • 난장 (표준국어대사전, 9 homonyms). The senses a Korean thinks of: 난장(亂場) "a place or state where many people mingle, shout and tangle into confusion" (= 난장판); 난-장 "a special market opened for a few days beyond the regular market days"; 난장(亂杖) "a torture in Goryeo and Joseon, in which a person was beaten all over the body (abolished in 1770)". 우리말샘 adds: roadside market, a beating by many people at once, a place where scholars crowd disorderly at the exam. The "lively open-air fair" meaning the owner has in mind is the market and festival sense; Koreans reading 난장 alone hear "chaos" first.
  • 두레 (표준국어대사전, 4 homonyms): sense 3 "an organisation set up in a village for communal farm work in busy season"; sense 4 another name for 풍물놀이; also a rice-cake lump and a wooden water scoop.
  • 품앗이 (표준국어대사전): "helping each other with hard work, giving and repaying labour". Namuwiki distinguishes 품앗이 (one-to-one labour exchange, still a living idiom: 문화품앗이, 육아품앗이) from 두레 (an organisation, nearly obsolete).
  • 또래 (표준국어대사전): "a group of similar age or level".

Sources: https://stdict.korean.go.kr/search/searchResult.do?searchKeyword=난장, …=두레, …=품앗이, …=또래; https://opendict.korean.go.kr/search/searchResult?query=난장; https://namu.wiki/w/품앗이; https://namu.wiki/w/두레.

How common as a name in Korea ​

KIPRIS rows containing the word (all statuses, any class), as a rough crowding measure: 두레 8,981; 또래 355; 난장 110; 품앗이 87. 두레 is by far the most used: 두레생협 (the 두레소비자생활협동조합연합회, whose mark is registered), 두레마을, 두레청과 (produce wholesale). 난장 is mostly pubs and music or culture groups (Nanjang Music and Nanjang Cultures show in the Wikipedia pages for Jaurim and Kim Duk-soo as label and agency names). 품앗이 is a recurring small-app and cooperative name. 또래 is the youth peer-counselling programme and the 또래오래 chicken chain (농협목우촌, the Nonghyup meat arm).

Negative, political or historical sense ​

  • 난장: the chaos and flogging senses above, plus the idioms 난장판 ("a total mess") and 난장을 치다. It is not a political word.
  • 두레: historical labour system (Namuwiki says it first appears in the Samhan period); strong co-op and community-movement association in modern Korea. I did not find a negative sense. Religious use (두레마을, a Christian community, appears as a KIPRIS owner under 김진홍) is general knowledge from the owner name, not a checked source.
  • 품앗이: positive; Namuwiki's only warning is an unrelated Thai custom. The idiom is also used in Korean politics for mutual back-scratching between parties, which I did not check against a source.
  • 또래: neutral; "또래 문화" and peer-pressure uses are common usage and not checked.

Foreign meanings of the Latin spellings ​

  • Dure: archaic English "to last"; Spanish and Asturian subjunctive of "durar"; French feminine "hard"; Dutch inflection of "duur"; Italian, Latin, Portuguese, Galician, Alemannic German entries (Wiktionary). Urban Dictionary has one entry calling it a Dutch slur for Asians from Wuhan, coined during the pandemic. The English Wikipedia article "Dure" is the Korean labour system.
  • Doore: obsolete English spelling of "door" (Wiktionary). Urban Dictionary has two entries, one a vulgar compound ("dirty whore"), the other a status word for "virgin". Also reads as "door".
  • Pumasi: no dictionary entry. The English Wikipedia article "Pumasi" is the Korean labour practice, so the Latin word is a recognised loanword, which weakens it as a brand in English too. It contains "Puma" (sportswear brand; no mark conflict in our classes in the search above).
  • Nanjang: no dictionary entry; Wikipedia shows only Korean uses (Nanjang Music label, Nanjang Cultures). Phonetically near "Nanjing".
  • Ttorae, Ddorae: no dictionary or slang entry.
  • Torae: no dictionary entry; Urban Dictionary has a personal-name entry (praise). Sounds like Torah or Japanese "tora" (tiger), I have not checked these.

Sources: https://en.wiktionary.org/wiki/dure, …/doore; https://api.urbandictionary.com/v0/define?term=dure, …=doore, …=torae; https://en.wikipedia.org/wiki/Pumasi; https://en.wikipedia.org/wiki/Dure.

6. Shape (facts only, no taste call) ​

Word / spellingHangul syllablesLatin lettersLatin shapeTense consonantVowels outside a, i, u, o, eFinal consonant
난장 / Nanjang27CVN-CVNGnonenone-n and -ng
두레 / Dure24CV-CV (an English reader may say it as one syllable, "dyur")nonenonenone
두레 / Doore25CV-CV, reads like "door-ee" or "door"nonenonenone
품앗이 / Pumasi36CV-CV-CV, spoken [푸마시] (the Hangul has a final ㅁ and ㅅ that move across the syllable break)nonenonenone
또래 / Ttorae26tense ㄸ shown as "tt"ㄸaenone
또래 / Torae25drops the tense markㄸ (hidden)aenone
또래 / Ddorae26"dd" is not a Revised Romanization formㄸaenone
  • 두레 alone fits the earlier "short, easy" targets (two syllables, plain vowels, no tense consonant, no final consonant).
  • 난장 meets the vowel and tense rules, but carries two closed syllables and the lower-scoring final -ng.
  • 품앗이 breaks the two-syllable target in Hangul, though Pumasi is plain CV-CV-CV in Latin.
  • 또래 breaks two stated rules (a tense ㄸ and the ae vowel) in all three spellings.

7. Verdicts ​

또래 — Usable with conditions. Best spelling: Ttorae (Revised Romanization). Why: no live identical mark in KR, US or EU in any of our classes; every address for Ttorae is free (.com, .app, .io, .co, .kr, .co.kr, getttorae.com); no exact app; ttoraeapp is free on all three networks and the Naver Blog is free. Conditions: (1) a 변리사 must run the phonetic check against 또래오래 (a well-known chicken brand, so the food association is the brand's, not the word's) and the 또래-compound marks in classes 41 and 45; (2) the word is descriptive for any same-age matching feature, so keep that out of the store line; (3) the vowel ae and tense ㄸ fail the shape rules of review 16, which is the owner's call. Torae is a second-best spelling: .io, .co, .app free, .com and .co.kr taken, Naver Blog taken.

난장 — Usable with conditions. Best spelling: Nanjang. Why: no live identical mark in classes 9, 35, 41 or 42 in KR, US or EU; no exact app; .app, .io, .co and getnanjang.com free; nanjang is free on X and nanjangapp on all three. Conditions: (1) the first Korean association is chaos (난장판), and a flogging sense is in the dictionary; (2) compound marks with Nanjang as the lead element exist in classes 35, 9 and 41, so a clean filing needs the full 칭호 search; (3) the pub trade (class 43) is crowded; (4) nanjang.com is taken (homepage unread).

품앗이 — Risky. Best spelling: Pumasi. Why: an identical pending Korean mark (4020250115681, filed 2025-07-02) for a smartphone messaging service; three existing apps use the exact name (iOS Finance app, a Play gift-notes app, and compounds); the word is the standard term for mutual aid, so it is weak for community services; it is three Hangul syllables. A .com is parked, .io is taken; .app, .co and getpumasi.com are free. What would lower the risk: an owner who still wants it must have a 변리사 read the pending filing's status, and must accept a crowded app-store name.

두레 — Blocked. No spelling is usable. Why: live identical 두레 (DOORE) marks in class 35 (marketing, advertising, online mall) and class 38 (messaging), live DURE marks in KR class 35, EU class 9 and a pending US DOORE mark in class 9 for an app; the exact Dure apps exist (Bigel, and a group bill-splitting app by NJHouse); the word describes a cooperative work group, so it is weak for club and community services; Dure.com, .app, .io and .co are all taken, and Doore carries a vulgar Urban Dictionary entry.

8. Re-run ​

All queries are in section 0. The raw outputs for this lane sit in the session scratchpad under r17b/ (an.out for trademarks, dom.out and han.out for domains and handles, it_*.json, gp_*.html, sd_*.html, namu_*.html).

Markdown remains the source of truth. Run yarn docs:check before handoff.