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

John Duff — 9 Patents

Salesforce: 4 patents #1,076 of 4,319Top 25%
JMJoy Manufacturing: 3 patents #10 of 116Top 9%
Rocklin, CA: #31 of 293 inventorsTop 15%
California: #67,547 of 386,348 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
John Duff has been granted 9 US patents while listed as an inventor at Salesforce. The first was granted in 1980 and the most recent in July 2018. John Duff ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Duff in Rocklin, CA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10021193 Session table framework Manu Gurudatha, Ashik Uzzaman 2018-07-10 $78,503,000
9456038 Session table framework Manu Gurudatha, Ashik Uzzaman 2016-09-27 $99,357,000
8812630 Session table framework Manu Gurudatha, Ashik Uzzaman 2014-08-19 $49,881,000
8650202 Session table framework Manu Gurudatha, Ashik Uzzaman 2014-02-11 $258,287,000
6347600 Portable indicating and protective structure for underground utilities 2002-02-19
D419481 Combined golf ball and tee 2000-01-25
4363258 Hydraulic impactor 1982-12-14 $1,651,000
4344353 Hammer Peter McFarlane 1982-08-17 $2,757,000
4240664 Hydraulic jet cutting tool and method Anil Mahyera 1980-12-23 $1,703,000