Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DH

David Hart — 7 Patents

TWTwitter: 3 patents #119 of 459Top 30%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
WCW.R. Case & Sons Cutlery: 1 patents #5 of 9Top 60%
Towanda, PA: #35 of 182 inventorsTop 20%
Pennsylvania: #11,887 of 74,527 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
David Hart has been granted 7 US patents while listed as an inventor at Twitter. The first was granted in 1981 and the most recent in November 2022. David Hart ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David Hart in Towanda, PA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11486221 Wellbore casing repair safety tool for low-pressure hydrocarbon wells 2022-11-01
11216172 Scrolling feed while maintaining expanded size of post in feed Lisa Ding, Jose Hernandez 2022-01-04 $102,171,000
D922414 Display screen with graphical user interface for organizing conversations by date Sara Haider, Lisa Ding, Mateusz Dzwonek 2021-06-15
11010050 Systems and methods for swipe-to-like Sara Haider, Lisa Ding, Jonah Grant 2021-05-18 $254,068,000
10932973 Portable light weight apparatus 2021-03-02
5791279 Apparatus for manually transporting a canoe 1998-08-11
4302877 Single spring double lockblade folding knife Thomas D. Hart 1981-12-01 $11,032,000