How can I search patents by classification?
保存版の掲載情報です。最新の営業状況・料金・利用条件は出典をご確認ください。
保存されている情報
Visit the Learn about Patent Classification page at USPTO.gov for more information about patent classification. If you are using a Cooperative Patent Classification (CPC) number in your search, you will need to search without spaces. For instance, a search for A45B 19/04 (umbrellas with telescopic…
- Current entry point
- Patent Public Search at ppubs.uspto.gov, answer details at www.uspto.gov/patents/search/patent-public-search/faqs (verified 2026-09-29)
- Legacy system and where it moved
- PubEAST / PubWEST (PatFT, AppFT) → Patent Public Search (verified 2026-09-29)
- Fee
- Confirmed per answer on the page (no site-wide statement, verified 2026-09-29)
- What you need (account or API key)
- Confirmed per answer on the page (no site-wide statement, verified 2026-09-29)
原データ更新日：2026-10-06
保存版に記録された日付です。今回の実装・デプロイ日ではありません。