Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DK

David Kempf

ENEndress+Hauser: 2 patents #50 of 149Top 35%
EMEmhart: 2 patents #107 of 310Top 35%
Ford: 1 patents #9,341 of 17,473Top 55%
Indianapolis, IN: #1,176 of 5,011 inventorsTop 25%
Indiana: #7,136 of 33,936 inventorsTop 25%
Overall (All Time): #1,005,018 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9109550 Modular design for fuel vapor purging in boosted engines Adam Nelligan, Brian T. Smith, Joseph Wesorick, Amar Shah 2015-08-18
5335554 Impact flowmeter William Patrick McCarthy 1994-08-09
5285019 Modular idler station belt scale apparatus Juergen Lauber 1994-02-08
4779450 Method and apparatus for installing a fluid probe Ford C. Jefferson 1988-10-25
4765178 Hydrocarbon probe Ford C. Jefferson, Brian Lee Chandler 1988-08-23