Patent Assignments icon

Patent Assignments

by Scott Hicks · Tools
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Provides USPTO patent assignments for any selected text, such as a selected company name or a patent number.

Users
388
+70 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#48K
#41K among extensions
Version
1.9
updated 30 Aug 2023

Users

monthly, 3 years
60224388Aug 2023Apr 2025Oct 2026
Latest, 16 Oct 2026: 388 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Aug 2023Apr 2025Oct 2026
Latest, 16 Oct 2026: 1 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 Patent Assignments

This solution allows you to quickly look up any US patent assignments for a given company name, US patent number, US pre-grant publication number, or US patent application serial number in the USPTO patent assignment database. Select a company name, US patent number, US pre-grant publication number, or US patent application serial number in webpage text, then open the context menu and select "Open USPTO Assignments" from the menu. You can normally open the context menu by right-clicking. The extension should work for any webpage loaded after the initial installation of the extension, as long as JavaScript is enabled. Just let me know of any issues you experience before writing a review -- I'm happy to continue to improve the solution. The extension is provided 'As-Is' without any express or implied warranty of any kind. Note that I do not collect any information from the extension -- all handling is done at your local browser. Enjoy! /Scott ----------------------------------- Updates: v1.9: - Updated to use Chrome extension manifest version V3 v1.8: - Added selected text to context menu item. - Removed access requiring user permission. v1.7: - Added handling of US patent application serial numbers (with '/' in the identifier). v1.6: - Reduced needed permissions. - Improved memory utilization. - Removed link hover handling, as this is not a common use case, and doing so allows for reduced permissions. v1.5: Updated to better handle selected text from a text input box. v1.4: Updated to handle the 10-digit US application publication numbers on Espacenet. v1.3: Updated to also handle US patent and publication numbers v1.2: Various improvements v1.1: Updated to reflect new USPTO Assignment Search

Growth

WindowUsersChangeRatingsRating
7 days+9+2.4%00.00
30 days+70+22.0%00.00
6 months+99+34.3%00.00
1 year+88+29.3%00.00

Chrome Web Store search rankings

Where Patent Assignments appears when people search the store, with the 30 day change
Search phrasePosition30 days
handle#40+10
grant#68+1

Version history

6 versions recorded
1.92 Dec 2022
1.826 Mar 2021
1.720 Mar 2021
1.67 Mar 2021
1.519 Jan 2021
1.419 Jun 2018

Details

Category
Tools
First seen
19 Jun 2018
Size
9 KB
Languages
en-US
Pricing
Free
Extension ID
bignnakjkgljmpdiolailocmpbjpnlog

Permissions and risk

Minimal riskimpact 0, likelihood 0
Permissions
contextMenus

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