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Reference corpus

Patents, read from the offices that grant them

Granted patents and published applications from more than a hundred patent offices — searchable by what an invention does, not just the words in its title.

436kpublications
where they are filed declared
6
years covered
2025–2026
fields per record
5
per record
2.3 KB

How it divides

2 dimensions · press a band to read it
Where they are filed · declared428,920 of 435,732 declared · 98.4%
  • United States166,436 · 38.8%
  • European Patent Office94,096 · 21.9%
  • WIPO (PCT)59,798 · 13.9%
  • South Korea44,747 · 10.4%
  • Japan29,564 · 6.9%
  • Remaining 3 values34,279 · 8.0%
Year · declared393,351 of 435,732 declared · 90.3%
  • 202699,940 · 25.4%
  • 2025293,411 · 74.6%
readout

166,436 publications are filed under United States — 38.8% of those that declare it.

428,920 of 435,732 declared · 98.4%. The rest carry no value for this field, so these shares are of the declared set and do not add up to the collection.

What you can do with it

Search by what it does — Describe the invention in your own words and find the filings that match, even when they use completely different terminology.

See the landscape — Who is filing, in which offices, and how a field has moved year on year.

Follow it into the record — Every result links back to the office's own publication, so a claim can be checked at source.

Read alongside the research — Patents sit next to the academic corpus, so an invention and the papers behind it turn up in the same search.

Filed to answer

Which companies filed on solid-state batteries in Japan last year?

Has anyone already filed on the mechanism I am about to describe?

How has filing activity in this field moved over the last decade, and in which offices?

Which filings name this applicant as the inventor rather than the assignee?

Written to

cadence
Continuously

A new record is a newly published publication. A revision replaces the text on the record that already exists rather than adding a second one, so the count does not double.

Read by

Research
research.askfinz.ai

Where it stops

It is not a freedom-to-operate opinion. A search is where clearance starts; whether a claim reads on your product is a legal judgement.

Filings publish on a delay set by the office, so the most recent months of activity in any field are necessarily incomplete.

Field reference

5 fields per record
  • Publication office
  • Filing and grant dates
  • Applicant and inventor
  • Classification
  • Abstract and claims
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Patent search: patents and published applications — askFinz