JH

James W. Heffel

University of California: 2 patents #4,561 of 18,278Top 25%
📍 Yreka, CA: #25 of 87 inventorsTop 30%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,113,944 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE42876 Apparatus and method for operating internal combustion engines from variable mixtures of gaseous fuels Paul B. Scott, Chan Seung Park 2011-11-01
6612269 Apparatus and method for operating internal combustion engines from variable mixtures of gaseous fuels Paul B. Scott 2003-09-02