RAG search across EPC provisions, EPO Guidelines for Examination, and PCT rules for European and international patent law research

MITAuto-check passedLegal & Compliance

Install Epc Search

skills CLI
$ npx skills add RobThePCGuy/Claude-Patent-Creator --skill epc-search -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install RobThePCGuy/Claude-Patent-Creator epc-search --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/RobThePCGuy/Claude-Patent-Creator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/epc-search .claude/skills/epc-search && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
epc-search
GitHub stars
196
Token cost
~2.2k tokens
SKILL.md length
719 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
MIT

At a glance

RAG search across EPC provisions, EPO Guidelines for Examination, and PCT rules for European and international patent law research

  • Works in 4 steps: EPC Search (European Patent Convention) → EPO Guidelines Search (Guidelines for… → PCT Rules Search (Patent Cooperation… → …
  • Tasks that involve Intellectual property
  • SKILL.md covers When to Use, What This Skill Does, Required Data and How to Use, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Epc Search is an agent skill from RobThePCGuy/Claude-Patent-Creator. RAG search across EPC provisions, EPO Guidelines for Examination, and PCT rules for European and international patent law research

Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Legal & Compliance, covering Intellectual property and Retrieval-augmented generation. The repository describes itself as: USPTO patent creation system with MCP server + Claude Code plugin. Hybrid RAG search over MPEP/USC/CFR, BigQuery access to 76M+ patents, automated 35 USC 112 compliance checks… The licence is MIT.

When your agent uses it

  • Tasks that involve Intellectual property
  • Tasks that involve Retrieval-augmented generation

Example prompts

  • “/epc-search”

Requirements

  • Python 3

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. EPC Search (European Patent Convention)
  2. EPO Guidelines Search (Guidelines for Examination)
  3. PCT Rules Search (Patent Cooperation Treaty)
  4. Cross-Jurisdiction Comparison

What it can do on your machine

Read from SKILL.md and the folder at commit a089731. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are python).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Epc Search loads about 2.2k tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 719 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~35
When it runs · the whole SKILL.md, loaded when a task matches
~2.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from RobThePCGuy/Claude-Patent-Creator at commit a089731, republished under its MIT licence (© RobThePCGuy). 719 words, ~2,223 tokens.

Download SKILL.mdSave it as .claude/skills/epc-search/SKILL.md (or your agent's skills folder).
name
epc-search
description
RAG search across EPC provisions, EPO Guidelines for Examination, and PCT rules for European and international patent law research
tools
Bash, Read, Write
model
sonnet

Hybrid RAG search across the European Patent Convention (EPC), EPO Guidelines for Examination, and PCT Rules for patent law research.

When to Use

Invoke this skill when users ask to:

  • Find EPC articles or rules on a specific topic
  • Search EPO Guidelines for Examination
  • Look up PCT rules or Administrative Instructions
  • Compare EPC requirements with USPTO/MPEP practice
  • Research EPO Board of Appeal case law principles
  • Understand European patent prosecution procedure
  • Find legal basis for EPO examination objections

What This Skill Does

Provides legal research across European and international patent law:

  1. EPC Search (European Patent Convention):

    • Articles 1-178 EPC
    • Rules 1-167 EPC (Implementing Regulations)
    • Protocol on Interpretation of Art. 69 EPC
    • Protocol on Centralisation
    • Protocol on Privileges and Immunities
  2. EPO Guidelines Search (Guidelines for Examination):

    • Part A: Guidelines for Formalities Examination
    • Part B: Guidelines for Search
    • Part C: Guidelines for Procedural Aspects of Substantive Examination
    • Part D: Guidelines for Opposition and Limitation/Revocation
    • Part E: Guidelines for General Procedural Matters
    • Part F: Guidelines for Substantive Examination (The Patent Application)
    • Part G: Guidelines for Patentability
    • Part H: Guidelines for Amendments and Corrections
  3. PCT Rules Search (Patent Cooperation Treaty):

    • PCT Articles 1-69
    • PCT Rules 1-96 (Regulations under the PCT)
    • Administrative Instructions under the PCT
    • WIPO Standards (ST.25, ST.26, ST.36)
  4. Cross-Jurisdiction Comparison:

    • EPC vs 35 USC mapping
    • EPO Guidelines vs MPEP equivalents
    • PCT requirements vs national requirements

Required Data

MCP Tools Available:

  • search_patent_law - Search EPC, EPO Guidelines, PCT rules with jurisdiction parameter
  • search_mpep - Search MPEP/35 USC/37 CFR for comparison

How to Use

When this skill is invoked:

  1. Determine jurisdiction:

    • EPO: search EPC articles/rules and EPO Guidelines
    • PCT: search PCT articles/rules and Administrative Instructions
    • Both: search across all sources
    • Comparison: search EPO + USPTO sources
  2. Execute search:

    EPC/EPO Guidelines search:

    python
    results = search_patent_law(
        query="claim clarity requirements",
        jurisdiction="EPO",
        top_k=5
    )

    PCT rules search:

    python
    results = search_patent_law(
        query="unity of invention",
        jurisdiction="PCT",
        top_k=5
    )

    Cross-jurisdiction comparison:

    python
    epo_results = search_patent_law(query="sufficiency of disclosure", jurisdiction="EPO")
    us_results = search_mpep(query="enablement requirement")
  3. Present results:

    • Show relevant provisions with full text
    • Provide article/rule numbers and section references
    • Include EPO Guidelines commentary
    • Note practical implications for prosecution

Key EPC Provisions Reference

Patentability
ArticleTopicDescription
Art. 52Patentable inventionsWhat can be patented
Art. 52(2)ExclusionsDiscoveries, theories, programs "as such"
Art. 53ExceptionsMorality, plant/animal varieties, medical methods
Art. 54NoveltyAbsolute novelty, no grace period
Art. 55Non-prejudicial disclosures6-month grace for abuse or exhibitions
Art. 56Inventive stepProblem-solution approach
Art. 57Industrial applicabilityCapable of industrial application
The Patent Application
Article/RuleTopicDescription
Art. 78RequirementsWhat an EP application must contain
Art. 83DisclosureSufficiency of disclosure
Art. 84ClaimsClarity, conciseness, support
Rule 42DescriptionContent and form of description
Rule 43ClaimsTwo-part form, numbering, categories
Rule 46DrawingsForm and content requirements
Rule 47AbstractMax 150 words, figure designation
Show full SKILL.md (276 more words)Show less
Examination Procedure
ArticleTopicDescription
Art. 90Formalities examinationInitial formality check
Art. 92European searchSearch report
Art. 94Substantive examinationExamination on request
Art. 97Grant/refusalDecision on application
Art. 99Opposition9-month opposition period

Key PCT Rules Reference

Application Requirements
RuleTopicDescription
Rule 4The requestForm PCT/RO/101 contents
Rule 5The descriptionRequired sections and order
Rule 6The claimsNumbering, form, categories
Rule 8The abstractMax 150 words, figure
Rule 11Physical requirementsPaper, margins, fonts
Rule 12LanguageAccepted languages
RuleTopicDescription
Rule 13Unity of inventionSingle general inventive concept
Rule 33Relevant prior artISA search scope
Rule 39Subject matter not searchedExcluded from ISA search
Rule 43bisInternational search reportWritten opinion of ISA
National Phase
RuleTopicDescription
Rule 49Physical requirementsNational phase format
Rule 49.6TranslationLanguage requirements
Rule 51bisCertain national requirementsNational law compliance

EPO Guidelines Structure

Part A: Formalities Examination
├── Chapter I: Checking the application on filing
├── Chapter II: Filing and examination for formalities
├── Chapter III: Special cases (divisionals, PCT)
└── Chapter IV: Designation of inventor

Part F: The Patent Application
├── Chapter I: Description
├── Chapter II: Claims (MOST COMMONLY SEARCHED)
│   ├── F-IV, 2: Independent claims
│   ├── F-IV, 3: Two-part form
│   ├── F-IV, 4: Clarity
│   ├── F-IV, 6: Support by description
│   └── F-IV, 7: Dependent claims
├── Chapter III: Sufficiency of disclosure
├── Chapter V: Abstract
└── Chapter VI: Drawings

Part G: Patentability
├── Chapter I: Excluded subject matter
├── Chapter II: Non-technical subject matter
├── Chapter III: Novelty
├── Chapter V: Non-prejudicial disclosures
├── Chapter VI: Inventive step (problem-solution)
└── Chapter VII: Inventive step (combinability)

Presentation Format

Present search results as:

EPC/EPO LEGAL RESEARCH RESULTS
=================================

Query: "claim clarity requirements"
Jurisdiction: EPO (EPC + Guidelines)

[1] Art. 84 EPC - The Claims
    "The claims shall define the matter for which protection
    is sought. They shall be clear, concise and be supported
    by the description."

    EPO Guidelines F-IV, 4 - Clarity
    "Each claim should be read giving the words the meaning
    and scope which they normally have in the relevant art..."

    Key Points:
    - Claims must be clear on their own (not by reference to spec)
    - Technical terms given their normal meaning in the art
    - Relative terms need objective reference point
    - Functional features must be verifiable

[2] Rule 43(1) EPC - Form and content of claims
    "...shall contain: (a) a statement indicating the designation
    of the subject-matter and those technical features necessary
    for the definition... (preamble); and (b) a characterising
    portion preceded by 'characterised in that'..."

    EPO Guidelines F-IV, 3.2 - Two-part form
    "Independent claims should normally be in the two-part form..."

---

Related MPEP Comparison:
- MPEP 2173: Claims Must Particularly Point Out and Distinctly Claim
- 35 USC 112(b): Equivalent US clarity requirement
- Key difference: EPO applies stricter objective clarity standard

Cross-Jurisdiction Mapping

EPO (EPC)USPTO (35 USC)PCT
Art. 54 (Novelty)35 USC 102Art. 33(2)
Art. 56 (Inventive step)35 USC 103Art. 33(3)
Art. 83 (Sufficiency)35 USC 112(a) EnablementRule 5.1(a)(v)
Art. 84 (Clarity)35 USC 112(b)Rule 6.1
Art. 84 (Support)35 USC 112(a) Written desc.Rule 6.1
Rule 42 (Description)MPEP 608Rule 5
Rule 43 (Claims)37 CFR 1.75Rule 6
Rule 47 (Abstract)37 CFR 1.72Rule 8
Art. 52(2) (Exclusions)35 USC 101N/A
Art. 53(c) (Medical methods)N/A (allowed in US)N/A

Tools Available

  • Read: To load legal documents
  • Bash: To run legal search queries
  • Write: To save research results and legal memoranda

© RobThePCGuy, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/epc-search of RobThePCGuy/Claude-Patent-Creator.

Open the folder on GitHubat commit a089731

Compare with similar skills

Epc Search next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Epc Search compared with similar skills
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Epc Search this skillRobThePCGuy/Claude-Patent-Creator196—~2.2kAutomated safety check: PassMIT
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Paper To Cn Patentsnipp-zha/Paper-to-patent-Skill1051 repos~959Automated safety check: PassNone
Patent Examinegfodor/legal-skills393—~4.8kAutomated safety check: PassGPL-3.0
Tw Legal RAGaa0101181514/tw-legal-rag327—~580Automated safety check: PassCustom licence
Patent Auditgfodor/legal-skills393—~2.9kAutomated safety check: PassGPL-3.0

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Questions about Epc Search

What does Epc Search do?

RAG search across EPC provisions, EPO Guidelines for Examination, and PCT rules for European and international patent law research. Epc Search is an agent skill from RobThePCGuy/Claude-Patent-Creator.

When should I use Epc Search?

Epc Search fits situations like: tasks that involve Intellectual property; tasks that involve Retrieval-augmented generation.

How do I install Epc Search in Claude Code?

Run `npx skills add RobThePCGuy/Claude-Patent-Creator --skill epc-search -a claude-code`. Or copy the skill folder (skills/epc-search in RobThePCGuy/Claude-Patent-Creator) into .claude/skills/epc-search in your project. Claude Code loads it when a task matches its description.

How do I install Epc Search in Codex?

Run `npx skills add RobThePCGuy/Claude-Patent-Creator --skill epc-search -a codex`. Or copy the skill folder (skills/epc-search in RobThePCGuy/Claude-Patent-Creator) into .agents/skills/epc-search in your project. Codex loads it when a task matches its description.

Can I use Epc Search in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add RobThePCGuy/Claude-Patent-Creator --skill epc-search -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/epc-search, .gemini/skills/epc-search, .github/skills/epc-search and .opencode/skills/epc-search in your project.

What does Epc Search need to run?

SKILL.md names no scripts, command-line tools or credentials: Epc Search is instructions for the agent only. Our summary lists: Python 3.

Does Epc Search access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Epc Search safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Epc Search use?

Epc Search is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Epc Search use?

About 2.2k tokens (SKILL.md is roughly 8.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Epc Search?

Skills that share tags, products or a category with Epc Search: Paper to Chinese Patent Drafter (Yuan1z0825/nature-skills, 46k stars), Paper To Cn Patent (snipp-zha/Paper-to-patent-Skill, 105 stars), Patent Examine (gfodor/legal-skills, 393 stars) and Tw Legal RAG (aa0101181514/tw-legal-rag, 327 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Epc Search?

RobThePCGuy (a GitHub user) maintains it in RobThePCGuy/Claude-Patent-Creator, which has 196 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 6, 2026.

Source: RobThePCGuy/Claude-Patent-Creator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.