Patent Bear insideClaude,ChatGPT and Codex,and Gemini.

Search, Research, Draft, and Library, as tool calls in your agent. Listed in the Claude connector directory. Connect now

Search

Free

Patent search
US and EP grants, publications, and applications, full text.
Advanced search
Assignee, inventor, classification, dates, citations.
Cases
District court and Federal Circuit decisions, readable page by page.
PTAB
Board decisions in IPR, PGR and CBM trials by outcome, denial basis, panel and petitioner.
Reader
Claims, specification, figures, and highlights on the issued PDF, cited col:line.
Sequence and chemistry
DNA, RNA, and protein by homology. Chemistry by substructure or similarity.
File histories
Any application with its prosecution history, free. Download documents one at a time or merged.

Research

Analyses

All of Research

Draft

From the record

All drafts, including what is in build

Library

Yours, private

Open the Library

Update · Mar 30–Apr 3, 2026

Search inside a patent, PTAB proceedings, and batch prosecution downloads.

Note from the developers

Ctrl+F inside a patent, PTAB proceedings and publications, highlight-all, and batched prosecution PDF downloads.

New
In-patent search bar
Ctrl+F search inside a patent with fuzzy and exact modes.
Learn more →
New
PTAB & publications
Added PTAB proceedings and publication support.
Learn more →
New
Highlight-all & PDF menu
Highlight-all and a PDF download dropdown in the reader.
Learn more →
New
Batch prosecution downloads
Download prosecution PDFs in batches.
Learn more →
Improved
R2 data + mobile search
Patent data served from R2; added a mobile search bottom sheet.
Learn more →

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