PatCheck - Patent Legal Status for Espacenet, Google Patents, USPTO & more icon

PatCheck - Patent Legal Status for Espacenet, Google Patents, USPTO & more

Established publisherManifest V3 Free
View in Chrome Web Store Data as of 17 Oct 2026

Patent status (Pending/Protected/Expired) at patent, country & family levels + alerts & notes in Espacenet, Google Patents, USPTO.

Users
90
+3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#87K
#73K among extensions
Version
1.3.2
updated 13 Nov 2025

Users

monthly, 2 years
04590Aug 2024Oct 2025Oct 2026
Latest, 17 Oct 2026: 90 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
023Aug 2024Oct 2025Oct 2026
Latest, 17 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About PatCheck - Patent Legal Status for Espacenet, Google Patents, USPTO & more

• Instant legal status overlay in Espacenet, Google Patents, USPTO PPS & WIPO Patentscope (Pending / Protected / Not Protected at application, country & family level) • Family & EP breakdown - see the legal status of each individual member state within a European patent • Automatic e-mail alerts when protection status changes • Collaborative comments directly on patent records • Cross-platform saved table to keep patents organized while you browse • Espacenet-CSV export of the current legal status status

Growth

WindowUsersChangeRatingsRating
7 days+10+12.5%00.00
30 days+3+3.4%00.00
6 months+9+11.1%00.00
1 year+39+76.5%00.00

Chrome Web Store search rankings

Where PatCheck - Patent Legal Status for Espacenet, Google Patents, USPTO & more appears when people search the store, with the 30 day change
Search phrasePosition30 days
legal#30+5

Version history

24 versions recorded
1.3.213 Nov 2025
1.3.125 Jul 2025
1.3.020 Jul 2025
1.2.713 May 2025
1.2.518 Apr 2025
1.1.527 Mar 2025
1.1.224 Mar 2025
1.1.121 Mar 2025

Details

Category
Workflow & Planning
First seen
29 Aug 2024
Size
9.2 MB
Languages
de, en, es, fr, it, zh-CN, ja, ko
Pricing
Free
Privacy policy
patentfamily.com
Support
patcheck.de
Extension ID
aggpoplhegljbkgojpeiofhlakkhmfii

Permissions and risk

Moderate riskimpact 3, likelihood 1
Permissions
storagetabswebNavigationdownloads
Site access
https://ppubs.uspto.gov/*https://patents.google.com/*https://worldwide.espacenet.com/*https://patentscope.wipo.int/*https://patcheck.de/*file://*/*

Alternatives to PatCheck - Patent Legal Status for Espacenet, Google Patents, USPTO & more

Extensions that rank for the same store searches or share the Workflow & Planning category, ordered by users