legal-patent-search

legal-patent-search is a skill for Claude Code from modu-ai/moai-cowork. It costs 215 tokens per session (1,790 once invoked), scanned A, original, Apache-2.0.

A search tool for Korean patents, utility models, designs, and trademarks using KIPRIS Plus, a public intellectual-property search service. It collects publication details, key patent claims, and classification information.

In plain words
What is it for?
Use it to search prior art, find patents by keyword or applicant, review filing activity, inspect classification patterns, and research trademarks, designs, and utility models.
Why use it?
It saves time when looking for existing inventions, applicants, registrations, or filing trends. A KIPRIS Plus API key is required for searches.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_DATA} variable.

Part of the moai-lawyer plugin — 10 skills, 2 agents shipped together

Good fit Use it to search prior art, find patents by keyword or applicant, review filing activity, inspect classification patterns, and research trademarks, designs, and utility models.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/modu-ai/moai-cowork/legal-patent-search
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add modu-ai/moai-cowork --skill legal-patent-search
Clone the repo
git clone --depth 1 https://github.com/modu-ai/moai-cowork

Made for: Claude Code.

Or install moai-lawyer, the plugin that ships this one along with the rest of its 10 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for legal-patent-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/modu-ai/moai-cowork/legal-patent-search/github.svg)](https://agentmods.dev/skills/modu-ai/moai-cowork/legal-patent-search)
Your own site
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/legal-patent-search"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/legal-patent-search/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for legal-patent-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/legal-patent-search"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/legal-patent-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 215 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,790 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 49
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00215 $0.01790
Opus 5 $0.00108 $0.00895
Sonnet 5 $0.00043 $0.00358
Haiku 4.5 $0.00021 $0.00179

Measured 8d ago against content hash eb772217e423, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

legal-patent-search scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/moai-lawyer/skills/legal-patent-search/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

개요

KIPRIS Plus(한국지식재산보호원) API를 활용하여 특허, 실용신안, 디자인, 상표를 검색하고 서지정보를 체계적으로 정리하는 전문 스킬입니다. 선행기술 조사, 출원 현황 파악, 기술 동향 분석을 지원합니다.

트리거 키워드

  • 특허 검색, 특허 찾아줘, 특허 조사
  • KIPRIS 검색, 한국 특허
  • 선행기술 조사, prior art search
  • 특허 출원 현황, 등록 특허
  • 실용신안, 디자인권, 상표 검색

워크플로우

1단계: API 키 확인 (필수)

KIPRIS Plus API 키가 필요합니다:

IF KIPRIS_API_KEY 미설정:
  "특허 검색을 위해 KIPRIS Plus API 키가 필요합니다.

   발급 방법:
   1. https://plus.kipris.or.kr/ 접속 → 회원가입
   2. 마이페이지 → 인증키 발급
   3. 또는 https://www.data.go.kr/data/15065437/openapi.do 에서 활용신청 (무료)

   API 키를 입력해 주세요:"

  → 사용자가 키 입력
  → ${CLAUDE_PLUGIN_DATA}/moai-credentials.env에 KIPRIS_API_KEY 저장
  → Step 2로 진행

2단계: 검색 전략 수립

  • 핵심 키워드 추출 (한국어 + 영어 동시 검색)
  • IPC 분류코드 매핑 (국제특허분류)
  • 검색 범위 결정 (국내/해외, 연도, 상태: 출원/등록/공개)
  • 출원인/발명자 필터

3단계: KIPRIS API 검색

API 기본 정보

  • Base URL: https://plus.kipris.or.kr/openapi/rest/
  • 인증: ServiceKey 파라미터 (KIPRIS_API_KEY)
  • 응답 형식: XML
  • ⚠️ 정확한 호스트·오퍼레이션명은 KIPRIS Plus 개발가이드 기준으로 확인하세요 (아래 호출 예시는 형식 예시이며, 오퍼레이션명은 발급처 명세를 따릅니다).

주요 검색 API

API 설명 파라미터
검색 출원/등록 특허 검색 keyword, ipc, applicant, inventor
출원정보 출원번호 기본 정보 applicationNumber
청구항 청구항 텍스트 applicationNumber
인용 인용 특허 정보 applicationNumber

검색 API 호출 예시:

GET https://plus.kipris.or.kr/openapi/rest/patentSearchInfo
  ?ServiceKey={KIPRIS_API_KEY}
  &keyword={검색어}
  &ipc={IPC코드}
  &year={연도}

4단계: 검색 결과 정리

  • 특허 목록 (출원번호, 제목, 출원인, 발명자, 출원일, 등록일, 상태)
  • 핵심 청구항 요약 (독립항 중심)
  • IPC/CPC 분류별 기술 분포
  • 출원인별 경쟁 현황 (상위 10개)
  • 연도별 출원 추이

5단계: 후속 작업 제안

  • "선행기술 조사" → moai-lawyer:legal-patent-analyzer 스킬 연계
  • "특허 맵 분석" → moai-lawyer:legal-patent-analyzer 스킬 연계
  • "출원서 작성" → moai-lawyer:legal-patent-analyzer 스킬 연계
  • "FTO 분석" → moai-lawyer:legal-patent-analyzer 스킬 연계

사용 예시

"딥러닝 기반 이미지 분류 관련 특허를 검색해줘."
"삼성전자의 반도체 관련 등록특허를 찾아줘."
"최근 5년간 배터리 기술 출원 현황을 조사해줘."
"자율주행 선행기술을 조사해줘. LiDAR 관련 특허야."

출력 형식

  • 특허 목록 테이블 (출원번호, 제목, 출원인, 출원일, 상태)
  • 핵심 특허 요약 (청구항 기반)
  • IPC 분류별 기술 분포
  • 출원인별 경쟁 현황
  • 연도별 출원 추이 (데이터)

Read the full file on GitHub · 158 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 158 lines · 215 tokens per session scan A eb772217e423

Subscribe to this mod's changes

legal-patent-search is a skill published in the GitHub repository modu-ai/moai-cowork (300 stars, last pushed 9d ago), licensed Apache-2.0. It adds 215 tokens to every session and 1,790 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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