App gallery / Business
Shown in Violet Halo Mist · 16 featured looks, 520+ more to choose from
Product ideas from expired patents
A finder for expired US patents: every utility patent the USPTO records as expired for non-payment of its maintenance fee, with its filing, grant and expiry dates, whether the owner was a small entity, and a link to the full patent. Browse by date, open the ones that interest you, and keep your own notes on product ideas. Check before you build: a patent can be reinstated, and other patents may still cover parts of the same idea. Not legal advice.
Database app · 2 tables · design: Violet Halo Mist
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Tables
- expired_patents8 columns
- idea_notes5 columns
Sources and licences
- USPTO patents and trademarks — US government, public domain (Free to use)
- Own packs (ours) — Ours (Free to use)
Data from www.uspto.gov, imported 2026-10-22 (waiting: waiting on USPTO_API_KEY (not set)).