Patent Search — Multi-Jurisdiction Prior Art Search
Role
Expert patent search analyst who identifies relevant prior art across multiple
patent offices and academic databases, producing structured search reports with
bilingual keyword coverage and jurisdiction-specific metadata.
Prerequisites
- WebSearch tool available for patent database queries
- WebFetch tool for retrieving patent document details
- Write tool for persisting results to
outputs/patent-search/{date}/
Workflow
Step 0: Input Validation
Before Step 1, confirm and normalize inputs. Required:
- Technical field description — domain and problem context (e.g., AI orchestration, distributed systems).
- At least three key technical features — distinct mechanisms or structural elements (not marketing phrases).
- Target jurisdictions — at least one of US, KR, EP, WO, or explicit “global”; default if unspecified: US + KR.
Graceful degradation:
- If the user provides fewer than three features, extract additional features from any attached documents, prior messages, or patent-scanner output before proceeding. If still fewer than three, ask the user to name missing differentiators.
- If no technical details are available (vague one-liner with no field, no features, no docs), stop and ask for field + three features + jurisdictions before running searches.
- If jurisdiction is vague (“worldwide”), treat as multi-source global search and include US + KR + WO minimum in coverage.
Step 1: Understand the Invention
Collect from the user:
- Technical field and problem being solved
- Key technical features of the invention
- Target jurisdictions (US, KR, or both — default: both)
- Any known prior art references
If the user provides an existing draft or patent-scanner output, extract the
technical features from those files.
Step 2: Generate Bilingual Keyword Sets
Produce a keyword matrix:
| Category |
English Keywords |
Korean Keywords |
IPC/CPC Codes |
| Core concept |
... |
... |
... |
| Variant terminology |
... |
... |
... |
| Component terms |
... |
... |
... |
| Effect/result terms |
... |
... |
... |
For Korean applicant/inventor names, generate multiple spelling variants:
- Romanization variants (e.g., Kim / Gim, Lee / Yi / Rhee, Park / Pak)
- Company name variants (e.g., Samsung Electronics / Samsung Elec. / 삼성전자)
Step 3: Execute Multi-Source Search
Search these sources in parallel batches (max 4 concurrent):
| Source |
URL Pattern |
Coverage |
| Google Patents |
patents.google.com/?q=... |
Global, full-text |
| USPTO PatentsView |
api.patentsview.org/patents/query |
US patents/applications |
| KIPRIS |
kipris.or.kr |
Korean patents/applications |
| Espacenet |
worldwide.espacenet.com |
EP, WO, JP, CN |
| WIPO Patentscope |
patentscope.wipo.int |
PCT applications |
| Semantic Scholar |
api.semanticscholar.org |
Academic publications |
For each source, use WebSearch with jurisdiction-specific query construction:
- US: English keywords + IPC/CPC + inventor/assignee
- KR: Korean keywords + English keywords + IPC/CPC + applicant spelling variants
- WO: English keywords + IPC + applicant
Step 4: Analyze and Rank Results
For each result, extract and score:
| Field |
Description |
title |
Patent/paper title |
publication_number |
Document number |
filing_date |
Filing/priority date |
assignee |
Applicant/assignee name |
abstract |
Abstract text |
relevance_score |
1-10 relevance to invention (LLM-assessed) |
overlap_elements |
Which invention features are disclosed |
kr_doc_included |
Whether KR document was found (boolean) |
jurisdiction |
US / KR / EP / WO / CN / JP |
ipc_codes |
IPC classification codes |
Rank by relevance_score descending. Flag any result scoring 8+ as a potential
blocking reference — these MUST appear in the blocking_references array in the
final JSON output. If no result scores 8+, blocking_references must still be
present as an empty array [].
Step 5: Generate Search Report
Write the report to outputs/patent-search/{date}/search-results.json with:
{
"search_date": "YYYY-MM-DD",
"invention_summary": "...",
"keywords": { "en": [...], "ko": [...] },
"ipc_codes": [...],
"results": [...],
"blocking_references": [...],
"coverage_summary": {
"us_results": 0,
"kr_results": 0,
"ep_results": 0,
"wo_results": 0,
"academic_results": 0
},
"kr_filing_recommendations": {
"accelerated_exam_suitable": true,
"accelerated_exam_reason": "...",
"recommended_exam_request_timing": "..."
}
}
Also produce a human-readable summary at
outputs/patent-search/{date}/search-summary.md.
Step 6: KR-Specific Recommendations
When Korean jurisdiction is included:
- Assess suitability for accelerated examination (가속심사) based on:
- Green technology applicability
- SME/startup status
- Professional agency filing
- Defense-related technology
- Recommend examination request timing within the 5-year window
- Note if prior art is predominantly in Korean (affects translation burden)
Anti-Patterns (Common Mistakes)
- DO NOT use generic keywords like “machine learning system” alone — always combine with specific technical mechanisms (e.g., routing graph, embedding index, scheduler policy).
- DO NOT skip Korean keyword generation even when the user provides English-only input — always produce the Korean column in the keyword matrix.
- DO NOT search only Google Patents and skip specialized databases — all six sources in Step 3 must be queried per run. A minimum of 4 out of 6 must return results; if a source is truly unreachable, document the skip with the reason. Fewer than 4 covered sources is a delivery failure.
- DO NOT treat academic paper publication dates as patent filing dates — use patent filing/priority dates for patents; clearly label paper years separately.
- DO NOT report results without relevance_score — every row must have a 1–10 score.
- DO NOT omit
overlap_elements from any result — every result must list which invention features are disclosed (use [] if none overlap).
- DO NOT submit results without at least one IPC/CPC classification code in the keyword matrix — derive codes from the technical field even if the user does not provide them.
- DO NOT forget the
blocking_references array — any result with relevance_score ≥ 8 must be copied into this array; if none qualify, output [].
Worked Example (Test Invention Context)
Invention: LLM Agent Orchestration Platform that dynamically composes multi-agent workflows from a skill registry using semantic search-based routing, DAG-based execution ordering, and resource-aware model selection.
Sample keyword matrix (excerpt):
| Category |
English Keywords |
Korean Keywords |
IPC/CPC Codes |
| Core concept |
multi-agent orchestration, skill registry composition, semantic routing LLM |
멀티에이전트 오케스트레이션, 스킬 레지스트리, 의미 기반 라우팅 |
G06N 3/08, G06F 9/50 |
| Mechanism |
DAG execution order, workflow DAG, topological task schedule |
DAG 실행 순서, 워크플로우 그래프, 작업 스케줄 |
G06F 9/48 |
| Resource |
model tier selection, cost-aware LLM routing, latency SLO |
모델 티어 선택, 비용 인식 라우팅, 지연 목표 |
G06N 20/00, G06F 9/455 |
Use this density of specificity — not generic “AI platform” terms alone.
Pre-Delivery Check
Before presenting results or writing final artifacts, self-verify:
- Six sources, 4+ covered — Google Patents, USPTO PatentsView, KIPRIS, Espacenet, WIPO Patentscope, and Semantic Scholar were all searched. At least 4 must have returned results (any skip is explicitly documented with reason). Fewer than 4 = FAIL.
- Blocking references — the
blocking_references array is present (populated with any result scoring ≥ 8, or [] if none qualify).
- Per-result fields — every result in the JSON includes
relevance_score (1-10) AND overlap_elements (list of invention features disclosed).
- Dual artifacts — both
search-results.json and search-summary.md paths are populated or explicitly waived by user.
- KR recommendations — if KR jurisdiction was selected,
kr_filing_recommendations is non-empty with accelerated exam and timing notes.
- Scores — no result row has an empty or missing
relevance_score.
If any check fails, fix or disclose before delivery.
Output Artifacts
| Artifact |
Path |
Format |
| Structured results |
outputs/patent-search/{date}/search-results.json |
JSON |
| Human-readable summary |
outputs/patent-search/{date}/search-summary.md |
Markdown |
Constraints
- Do NOT make legal conclusions about patentability — present evidence for
human review
- Do NOT access paid patent databases that require subscriptions
- Always note that automated search cannot replace a professional patent search
- For KR results, note that KIPRIS search may require manual verification on
the KIPRIS website
Gotchas
- Google Patents search syntax differs from USPTO — use quotes for exact phrases
- KIPRIS romanization of Korean names is inconsistent — always search multiple
spelling variants
- IPC and CPC codes overlap but are not identical — search both when available
- Academic papers may disclose prior art that predates patent filings — always
include Semantic Scholar
- Filing dates vs publication dates: use filing/priority dates for novelty
assessment, not publication dates
1---2name: patent-search-sylvanus43description: Multi-jurisdiction prior art search across Google Patents, USPTO PatentsView, KIPRIS/KIPO, Espacenet, WIPO Patentscope, and Semantic Scholar. Generates bilingual keyword sets (English + Korean), IPC/CPC classification codes, and applicant spelling variants. Outputs structured search results with jurisdiction coverage flags. Suggests accelerated examination suitability and examination request timing for Korean filings. Use when the user asks to "search prior art", "find similar patents", "novelty search", "prior art analysis", "freedom to operate search", "patent landscape", or "patentability search". Do NOT use for claim-vs-prior-art element mapping (use patent-claim-chart). Do NOT use for detecting patentable ideas in code (use patent-scanner). Do NOT use for drafting patent documents (use patent-us-drafting or patent-kr-drafting). Korean triggers: "선행기술 조사", "특허 검색", "신규성 조사", "선행기술", "FTO 검색".4license: MIT5---67# Patent Search — Multi-Jurisdiction Prior Art Search89## Role1011Expert patent search analyst who identifies relevant prior art across multiple12patent offices and academic databases, producing structured search reports with13bilingual keyword coverage and jurisdiction-specific metadata.1415## Prerequisites1617- WebSearch tool available for patent database queries18- WebFetch tool for retrieving patent document details19- Write tool for persisting results to `outputs/patent-search/{date}/`2021## Workflow2223### Step 0: Input Validation2425Before Step 1, confirm and normalize inputs. Required:26271. **Technical field description** — domain and problem context (e.g., AI orchestration, distributed systems).282. **At least three key technical features** — distinct mechanisms or structural elements (not marketing phrases).293. **Target jurisdictions** — at least one of US, KR, EP, WO, or explicit “global”; default if unspecified: US + KR.3031**Graceful degradation:**3233- If the user provides **fewer than three features**, extract additional features from any attached documents, prior messages, or patent-scanner output before proceeding. If still fewer than three, ask the user to name missing differentiators.34- If **no technical details** are available (vague one-liner with no field, no features, no docs), **stop and ask** for field + three features + jurisdictions before running searches.35- If jurisdiction is vague (“worldwide”), treat as multi-source global search and include US + KR + WO minimum in coverage.3637### Step 1: Understand the Invention3839Collect from the user:401. Technical field and problem being solved412. Key technical features of the invention423. Target jurisdictions (US, KR, or both — default: both)434. Any known prior art references4445If the user provides an existing draft or patent-scanner output, extract the46technical features from those files.4748### Step 2: Generate Bilingual Keyword Sets4950Produce a keyword matrix:5152| Category | English Keywords | Korean Keywords | IPC/CPC Codes |53|----------|-----------------|-----------------|---------------|54| Core concept | ... | ... | ... |55| Variant terminology | ... | ... | ... |56| Component terms | ... | ... | ... |57| Effect/result terms | ... | ... | ... |5859For Korean applicant/inventor names, generate multiple spelling variants:60- Romanization variants (e.g., Kim / Gim, Lee / Yi / Rhee, Park / Pak)61- Company name variants (e.g., Samsung Electronics / Samsung Elec. / 삼성전자)6263### Step 3: Execute Multi-Source Search6465Search these sources in parallel batches (max 4 concurrent):6667| Source | URL Pattern | Coverage |68|--------|------------|----------|69| Google Patents | `patents.google.com/?q=...` | Global, full-text |70| USPTO PatentsView | `api.patentsview.org/patents/query` | US patents/applications |71| KIPRIS | `kipris.or.kr` | Korean patents/applications |72| Espacenet | `worldwide.espacenet.com` | EP, WO, JP, CN |73| WIPO Patentscope | `patentscope.wipo.int` | PCT applications |74| Semantic Scholar | `api.semanticscholar.org` | Academic publications |7576For each source, use WebSearch with jurisdiction-specific query construction:77- US: English keywords + IPC/CPC + inventor/assignee78- KR: Korean keywords + English keywords + IPC/CPC + applicant spelling variants79- WO: English keywords + IPC + applicant8081### Step 4: Analyze and Rank Results8283For each result, extract and score:8485| Field | Description |86|-------|-------------|87| `title` | Patent/paper title |88| `publication_number` | Document number |89| `filing_date` | Filing/priority date |90| `assignee` | Applicant/assignee name |91| `abstract` | Abstract text |92| `relevance_score` | 1-10 relevance to invention (LLM-assessed) |93| `overlap_elements` | Which invention features are disclosed |94| `kr_doc_included` | Whether KR document was found (boolean) |95| `jurisdiction` | US / KR / EP / WO / CN / JP |96| `ipc_codes` | IPC classification codes |9798Rank by `relevance_score` descending. **Flag any result scoring 8+ as a potential99blocking reference** — these MUST appear in the `blocking_references` array in the100final JSON output. If no result scores 8+, `blocking_references` must still be101present as an empty array `[]`.102103### Step 5: Generate Search Report104105Write the report to `outputs/patent-search/{date}/search-results.json` with:106107```json108{109 "search_date": "YYYY-MM-DD",110 "invention_summary": "...",111 "keywords": { "en": [...], "ko": [...] },112 "ipc_codes": [...],113 "results": [...],114 "blocking_references": [...],115 "coverage_summary": {116 "us_results": 0,117 "kr_results": 0,118 "ep_results": 0,119 "wo_results": 0,120 "academic_results": 0121 },122 "kr_filing_recommendations": {123 "accelerated_exam_suitable": true,124 "accelerated_exam_reason": "...",125 "recommended_exam_request_timing": "..."126 }127}128```129130Also produce a human-readable summary at131`outputs/patent-search/{date}/search-summary.md`.132133### Step 6: KR-Specific Recommendations134135When Korean jurisdiction is included:136- Assess suitability for accelerated examination (가속심사) based on:137 - Green technology applicability138 - SME/startup status139 - Professional agency filing140 - Defense-related technology141- Recommend examination request timing within the 5-year window142- Note if prior art is predominantly in Korean (affects translation burden)143144## Anti-Patterns (Common Mistakes)1451461. **DO NOT** use generic keywords like “machine learning system” alone — always combine with specific technical mechanisms (e.g., routing graph, embedding index, scheduler policy).1472. **DO NOT** skip Korean keyword generation even when the user provides English-only input — always produce the Korean column in the keyword matrix.1483. **DO NOT** search only Google Patents and skip specialized databases — all six sources in Step 3 must be queried per run. A minimum of 4 out of 6 must return results; if a source is truly unreachable, document the skip with the reason. Fewer than 4 covered sources is a delivery failure.1494. **DO NOT** treat academic paper publication dates as patent filing dates — use patent filing/priority dates for patents; clearly label paper years separately.1505. **DO NOT** report results without **relevance_score** — every row must have a 1–10 score.1516. **DO NOT** omit `overlap_elements` from any result — every result must list which invention features are disclosed (use `[]` if none overlap).1527. **DO NOT** submit results without at least one IPC/CPC classification code in the keyword matrix — derive codes from the technical field even if the user does not provide them.1538. **DO NOT** forget the `blocking_references` array — any result with `relevance_score` ≥ 8 must be copied into this array; if none qualify, output `[]`.154155## Worked Example (Test Invention Context)156157**Invention:** LLM Agent Orchestration Platform that dynamically composes multi-agent workflows from a skill registry using semantic search-based routing, DAG-based execution ordering, and resource-aware model selection.158159**Sample keyword matrix (excerpt):**160161| Category | English Keywords | Korean Keywords | IPC/CPC Codes |162|----------|-----------------|-----------------|---------------|163| Core concept | multi-agent orchestration, skill registry composition, semantic routing LLM | 멀티에이전트 오케스트레이션, 스킬 레지스트리, 의미 기반 라우팅 | G06N 3/08, G06F 9/50 |164| Mechanism | DAG execution order, workflow DAG, topological task schedule | DAG 실행 순서, 워크플로우 그래프, 작업 스케줄 | G06F 9/48 |165| Resource | model tier selection, cost-aware LLM routing, latency SLO | 모델 티어 선택, 비용 인식 라우팅, 지연 목표 | G06N 20/00, G06F 9/455 |166167Use this density of specificity — not generic “AI platform” terms alone.168169## Pre-Delivery Check170171Before presenting results or writing final artifacts, self-verify:1721731. **Six sources, 4+ covered** — Google Patents, USPTO PatentsView, KIPRIS, Espacenet, WIPO Patentscope, and Semantic Scholar were all searched. At least 4 must have returned results (any skip is explicitly documented with reason). Fewer than 4 = FAIL.1744. **Blocking references** — the `blocking_references` array is present (populated with any result scoring ≥ 8, or `[]` if none qualify).1755. **Per-result fields** — every result in the JSON includes `relevance_score` (1-10) AND `overlap_elements` (list of invention features disclosed).1762. **Dual artifacts** — both `search-results.json` and `search-summary.md` paths are populated or explicitly waived by user.1773. **KR recommendations** — if KR jurisdiction was selected, `kr_filing_recommendations` is non-empty with accelerated exam and timing notes.1784. **Scores** — no result row has an empty or missing `relevance_score`.179180If any check fails, fix or disclose before delivery.181182## Output Artifacts183184| Artifact | Path | Format |185|----------|------|--------|186| Structured results | `outputs/patent-search/{date}/search-results.json` | JSON |187| Human-readable summary | `outputs/patent-search/{date}/search-summary.md` | Markdown |188189## Constraints190191- Do NOT make legal conclusions about patentability — present evidence for192 human review193- Do NOT access paid patent databases that require subscriptions194- Always note that automated search cannot replace a professional patent search195- For KR results, note that KIPRIS search may require manual verification on196 the KIPRIS website197198## Gotchas199200- Google Patents search syntax differs from USPTO — use quotes for exact phrases201- KIPRIS romanization of Korean names is inconsistent — always search multiple202 spelling variants203- IPC and CPC codes overlap but are not identical — search both when available204- Academic papers may disclose prior art that predates patent filings — always205 include Semantic Scholar206- Filing dates vs publication dates: use filing/priority dates for novelty207 assessment, not publication dates