screen-trademark
关于
This skill screens proposed trademarks for legal conflicts and distinctiveness by searching major trademark databases and analyzing risks using established legal frameworks. It generates a conflict report with a risk matrix to inform brand adoption decisions. Use it specifically for trademark clearance, which is distinct from patent searches.
快速安装
Claude Code
推荐npx skills add pjt222/agent-almanac -a claude-code/plugin add https://github.com/pjt222/agent-almanacgit clone https://github.com/pjt222/agent-almanac.git ~/.claude/skills/screen-trademark在 Claude Code 中复制并粘贴此命令以安装该技能
技能文档
Screen Trademark
Screen a proposed trademark for conflicts and assess distinctiveness before filing. Searches trademark registries, evaluates the mark on the Abercrombie spectrum, analyzes likelihood of confusion with prior marks, and produces a conflict report with actionable risk ratings.
When to Use
- Before adopting a new brand name, product name, or service mark
- When rebranding or expanding into new goods/services classes
- Before filing a trademark application (national, EU, or international)
- When evaluating acquisition targets with trademark portfolios
- Before launching a product in a new geographic market with existing branding
- When a cease-and-desist letter is received and you need to assess exposure
Inputs
- Required: Proposed mark (word mark, figurative mark, or both)
- Required: Goods and/or services the mark will cover (plain language description)
- Required: Geographic scope (US, EU, specific countries, or global)
- Optional: Nice classification classes if known
- Optional: Intended date of first use (relevant for US common law priority)
- Optional: Known competing marks or brands in the space
- Optional: Whether the mark is a word mark, figurative mark, or composite
Procedure
Step 1: Define the Mark and Goods/Services
Establish exactly what is being screened and in which classes.
- Record the proposed mark precisely:
- Word mark: text as it will appear (case matters for figurative elements)
- Figurative mark: describe visual elements, colors, stylization
- Composite mark: both word and figurative elements together
- Describe the goods and/or services in plain language
- Identify the applicable Nice classification classes:
- Use TMclass (https://tmclass.tmdn.org/) to look up classes
- Search by keyword to find the correct class and acceptable terms
- Most marks need 1-3 classes; identify all relevant ones
- Adjacent classes where confusion could arise (e.g., Class 9 software and Class 42 SaaS)
- Document the geographic scope:
- US (USPTO), EU (EUIPO), international (WIPO Madrid), or specific national offices
- Note jurisdictional differences: US is first-to-use; EU is first-to-file
Got: A clear record of the mark, its goods/services description, Nice classes, and target jurisdictions. This defines search scope for all subsequent steps.
If fail: With ambiguous Nice classification (goods/services span multiple classes), err on the side of including more classes. Screening a broader scope is safer than missing a conflict in an adjacent class.
Step 2: Search Trademark Databases
Search for identical and similar marks across registries.
- Search for identical marks first (exact match):
- TMview (https://www.tmdn.org/tmview/): EU and participating national offices
- WIPO Global Brand Database (https://branddb.wipo.int/): international registrations
- USPTO TESS / Trademark Center (https://tsdr.uspto.gov/): US registrations and applications
- National offices as relevant: DPMAregister (Germany), UKIPO (UK), CIPO (Canada)
- Search for similar marks — expand to find:
- Phonetic equivalents: marks that sound alike ("Kool" vs. "Cool", "Lyft" vs. "Lift")
- Visual equivalents: marks that look alike ("Adidaz" vs. "Adidas")
- Transliterations and translations of the mark
- Marks with common prefixes/suffixes added or removed
- Plurals, possessives, abbreviations
- Filter results by:
- Status: live/registered marks and pending applications (ignore dead/cancelled)
- Goods/services: same or related Nice classes (from Step 1)
- Geography: target jurisdictions
- For each potential conflict, record:
- Mark text and registration/application number
- Owner name and jurisdiction
- Nice classes and goods/services description
- Status (registered, pending, opposed) and dates
- Whether the mark is identical or similar (and how: phonetic, visual, conceptual)
Got: A list of potentially conflicting marks from at least two databases, covering both identical and similar marks in the relevant classes and jurisdictions. Each result includes enough detail for the confusion analysis in Step 4.
If fail: If a database is temporarily unavailable, note the gap and proceed with available sources. If the proposed mark is a common word, expect a large result set — prioritize results in the same or closely related Nice classes before expanding.
Step 3: Assess Distinctiveness
Evaluate where the proposed mark falls on the Abercrombie spectrum.
- Apply the Abercrombie spectrum (weakest to strongest):
- Generic: Common name for the goods/services ("Computer Software" for software). Unregistrable and unprotectable
- Descriptive: Directly describes a quality, feature, or purpose ("Quick Print" for printing). Registrable only with evidence of secondary meaning (acquired distinctiveness)
- Suggestive: Suggests a quality but requires imagination to connect ("Netflix" = internet + flicks). Inherently distinctive; registrable without secondary meaning
- Arbitrary: A real word used in an unrelated context ("Apple" for computers). Strong inherent distinctiveness
- Fanciful: A coined word with no prior meaning ("Xerox", "Kodak"). Strongest distinctiveness
- Assess secondary meaning if the mark is descriptive:
- Duration and extent of use in commerce
- Advertising expenditures and consumer exposure
- Consumer surveys or declarations
- Media coverage and unsolicited recognition
- Check for marks that have become generic through genericide:
- Was the mark once distinctive but now used as a common term? (e.g., "escalator", "aspirin" in the US)
- Document the distinctiveness assessment with reasoning
Got: A clear classification of the mark on the Abercrombie spectrum with supporting rationale. If descriptive, an assessment of whether secondary meaning can be established. Suggestive, arbitrary, and fanciful marks proceed with confidence.
If fail: If the mark falls on the generic-descriptive boundary, this is a significant registration risk. Recommend modifying the mark to push it toward suggestive (add a twist, combine with an unrelated concept) or prepare a secondary meaning evidence strategy.
Step 4: Analyze Likelihood of Confusion
Evaluate whether the proposed mark is likely to be confused with any prior marks found in Step 2.
- For each potentially conflicting prior mark, assess DuPont factors (US framework) or EUIPO relative grounds:
- Similarity of marks:
- Visual: side-by-side appearance, letter composition, length, structure
- Phonetic: pronunciation, syllable count, stress patterns, vowel sounds
- Conceptual: meaning, connotation, commercial impression
- Similarity of goods/services:
- Same Nice class is a strong indicator but not conclusive
- Related goods/services in different classes can still conflict
- Consider channels of trade and typical purchasers
- Strength of the prior mark:
- Famous marks get broader protection (dilution doctrine)
- Weak/descriptive marks get narrower protection
- Market presence, advertising spend, recognition surveys
- Evidence of actual confusion:
- Customer complaints, misdirected communications
- Social media mentions confusing the two brands
- Prior opposition or cancellation proceedings
- Similarity of marks:
- Weigh the factors holistically:
- No single factor is dispositive; the analysis is a balancing test
- Strong similarity in marks can offset weak similarity in goods (and vice versa)
- Famous marks tip the balance toward finding confusion more easily
- Rate each potential conflict:
- Blocking: Near-identical mark in same goods/services, strong prior mark
- High risk: Similar mark in same/related goods, or identical mark in related goods
- Moderate risk: Similar mark in related goods, or identical mark in distant goods
- Low risk: Weak similarity, distant goods, or weak prior mark
Got: A rated list of potential conflicts with analysis supporting each rating. The most serious conflicts (blocking and high risk) are identified with specific reasoning.
If fail: If the analysis is borderline (factors pointing in both directions), rate the conflict conservatively (higher risk). It is safer to flag a potential conflict that turns out to be manageable than to miss one that blocks registration or triggers litigation.
Step 5: Assess Common Law Rights
Evaluate unregistered trademark rights that may not appear in database searches.
- Search for prior use without registration:
- Business name registries and state/provincial databases
- Domain name registrations (WHOIS, domain search tools)
- Social media handles and business profiles
- Industry directories and trade publications
- Google and general web search for commercial use of the mark
- Consider jurisdictional rules:
- US: First-to-use system — prior commercial use creates rights even without registration
- EU: First-to-file system — registration takes priority, but prior use can create limited defenses
- UK: Passing off doctrine protects unregistered marks with goodwill
- Assess the scope of any common law rights found:
- Geographic reach of the prior user's market
- Duration and consistency of use
- Whether the user has built goodwill in the mark
- Document common law findings and their impact on the overall risk assessment
Got: A supplementary list of unregistered uses of the mark (or similar marks) that could create conflicts not visible in trademark registry searches. Particularly important for US filings.
If fail: If common law searching yields overwhelming results (the mark is a common word), focus on uses in the same industry/goods category. Common law rights are typically narrow in scope — a local bakery named "Sunrise" doesn't block a software product named "Sunrise."
Step 6: Evaluate Goods/Services Overlap
Analyze the competitive proximity of goods/services in detail.
- Compare Nice classification of the proposed mark against each prior mark:
- Same class: presumptive overlap (but not automatic — classes can be broad)
- Adjacent classes: assess whether goods/services are complementary or competitive
- Distant classes: typically safe unless the prior mark is famous
- Analyze channels of trade:
- Are goods sold through the same retailers or platforms?
- Do they target the same consumer demographic?
- Would a consumer encountering both marks assume a common source?
- Assess expansion likelihood:
- Is the prior mark owner likely to expand into the proposed mark's goods/services?
- "Zone of natural expansion" doctrine (US)
- Document the overlap analysis with supporting reasoning
Got: A clear assessment of goods/services proximity for each potential conflict, strengthening or weakening the likelihood of confusion ratings from Step 4.
If fail: With unclear goods/services relationship (novel product categories, convergent industries), apply the reasonable consumer test: would a typical buyer seeing both marks in the marketplace assume they come from the same source?
Step 7: Generate Conflict Report
Compile all findings into a structured, actionable report.
- Write the Trademark Conflict Report with sections:
- Executive summary: proposed mark, key findings, overall risk rating
- Mark and scope: mark description, Nice classes, jurisdictions
- Distinctiveness assessment: Abercrombie classification, registration implications
- Conflict matrix: all identified conflicts with risk ratings
Conflict Risk Matrix:
+----+-------------------+----------+---------+-------+---------+
| # | Prior Mark | Classes | Juris. | Type | Risk |
+----+-------------------+----------+---------+-------+---------+
| 1 | ACMESOFT | 9, 42 | US, EU | Ident | BLOCK |
| 2 | ACME SOLUTIONS | 42 | US | Sim | HIGH |
| 3 | ACMEX | 35 | EU | Phon | MOD |
| 4 | ACM | 16 | US | Vis | LOW |
+----+-------------------+----------+---------+-------+---------+
Risk: BLOCK = blocking | HIGH | MOD = moderate | LOW | CLEAR
Type: Ident = identical | Sim = similar | Phon = phonetic | Vis = visual
- Common law findings: unregistered uses of relevance
- Goods/services analysis: overlap assessment per conflict
- Recommendations: one of the following overall conclusions:
- Clear: No significant conflicts found — proceed to filing
- Low risk: Minor conflicts unlikely to prevent registration — proceed with monitoring
- Moderate risk: Conflicts exist but may be manageable — consider coexistence agreement, mark modification, or narrowing goods/services
- High risk: Significant conflicts likely to trigger opposition or refusal — consider substantial mark modification or alternative marks
- Blocking: Near-identical prior mark in same goods/services — do not proceed without legal counsel
- Include limitations and caveats:
- Screening is not a legal opinion; consult trademark counsel before filing
- Common law rights may exist beyond what database searches reveal
- Figurative similarity requires visual inspection (beyond text search capability)
Got: A complete conflict report with risk ratings, distinctiveness assessment, and clear recommendations. The report enables a go/no-go decision on the proposed mark.
If fail: If the analysis is inconclusive (mixed signals across jurisdictions or classes), present the findings by jurisdiction and let the decision-maker weigh business considerations alongside legal risk. A qualified "proceed with caution" is a valid conclusion.
Validation Checklist
- Mark and goods/services clearly documented with Nice classes
- At least two trademark databases searched (e.g., TMview + USPTO TESS)
- Both identical and similar marks searched (phonetic, visual, conceptual)
- Distinctiveness assessed on the Abercrombie spectrum with reasoning
- Likelihood of confusion analyzed using DuPont factors or EUIPO relative grounds
- Common law rights investigated (business names, domains, web presence)
- Goods/services overlap evaluated for each potential conflict
- Conflict matrix produced with risk ratings per mark
- Overall recommendation provided (clear / low / moderate / high / blocking)
- Limitations stated (screening vs. legal opinion, database coverage gaps)
Pitfalls
- Identical-only search: Searching for exact matches misses the most dangerous conflicts — phonetically and visually similar marks that trigger likelihood of confusion. Always search for variants
- Ignoring related classes: A software mark (Class 9) can conflict with a SaaS mark (Class 42) or a consulting mark (Class 35). Nice classes are guidelines, not walls
- Skipping common law search: In the US, an unregistered mark with prior use trumps a later federal registration. Database searches alone are insufficient
- Conflating distinctiveness with availability: A mark can be highly distinctive (fanciful) yet still conflict with an existing identical registration. Distinctiveness and availability are separate questions
- Single-jurisdiction bias: A mark that is clear in the US may be blocked in the EU and vice versa. Always screen the jurisdictions where the mark will actually be used
- Treating screening as legal opinion: This skill produces a structured risk assessment, not legal advice. Blocking and high-risk findings warrant review by trademark counsel before final decisions
Related Skills
assess-ip-landscape-- Broader IP landscape mapping that contextualizes trademark screening within a full IP strategysearch-prior-art-- Patent-focused prior art search using different databases and legal standards (novelty/obviousness vs. likelihood of confusion)file-trademark-- Filing procedure that follows a successful screening (not yet available)
GitHub 仓库
相关推荐技能
executing-plans
设计该Skill用于当开发者提供完整实施计划时,以受控批次方式执行代码实现。它会先审阅计划并提出疑问,然后分批次执行任务(默认每批3个任务),并在批次间暂停等待审查。关键特性包括分批次执行、内置检查点和架构师审查机制,确保复杂系统实现的可控性。
requesting-code-review
设计该Skill可在完成任务、实现主要功能或合并代码前自动调度代码审查子代理,确保实现符合需求和计划。它支持通过指定git SHA范围进行精准的代码变更审查,帮助开发者在关键节点及时发现潜在问题。核心原则是"早审查、勤审查",适用于开发流程的各个关键阶段。
connect-mcp-server
设计这个Skill指导开发者如何将MCP服务器连接到Claude Code,支持HTTP、stdio和SSE三种传输协议。它涵盖了从安装配置到认证安全的完整流程,适用于集成GitHub、Notion、数据库等外部服务。当开发者需要添加集成、配置外部工具或提及MCP相关功能时,这个Skill能提供实用的操作指南。
web-cli-teleport
设计该Skill帮助开发者根据任务特性选择Claude Code的Web或CLI界面,并指导如何在两种环境间无缝迁移会话。它能分析任务复杂度、迭代需求等要素,推荐最优工作界面和工作流。关键特性包括会话状态管理、环境切换指导和上下文优化建议。
