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

Frank Hunt — 35 Patents

Hitachi: 13 patents #3,142 of 28,497Top 15%
HAHitachi America: 7 patents #12 of 97Top 15%
BGBrooks Automation Gmbh: 4 patents #69 of 346Top 20%
HTHamilton Storage Technologies: 3 patents #2 of 16Top 15%
AUAzenta Us: 2 patents #1 of 23Top 5%
CHChart: 1 patents #36 of 79Top 50%
HAHitachi Automotive Systems Americas: 1 patents #9 of 37Top 25%
MUMve Biological Solutions Us: 1 patents #6 of 15Top 40%
Shrewsbury, MA: #33 of 938 inventorsTop 4%
Massachusetts: #2,373 of 88,656 inventorsTop 3%
Overall (All Time): #97,511 of 4,157,543Top 3%
35 Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
6736103 System for management of fuel in a cold start fuel passageway Shigeru Oho, Ayumu Miyajima 2004-05-18
6279549 Heater for a cold start fuel injector Shigeru Oho 2001-08-28
6109247 Heater for a cold start fuel injector 2000-08-29
5894832 Cold start engine control apparatus and method Toshiharu Nogi 1999-04-20
5598826 Cold start fuel control system for an internal combustion engine Toshiharu Nogi 1997-02-04
5529035 Cold start fuel injector with heater Toshiharu Nogi 1996-06-25
5482023 Cold start fuel control system Toshiharu Nogi 1996-01-09
5465701 Internal combustion fuel control system 1995-11-14
5426934 Engine and emission monitoring and control system utilizing gas sensors Masayoshi Kaneyasu, George Saikalis 1995-06-27
5234569 Air/fuel ratio sensor for an internal combustion engine 1993-08-10