FH

Frank G. Hughes

PL Perkins Engines Company Limited: 3 patents #22 of 209Top 15%
Caterpillar: 1 patents #4,437 of 8,398Top 55%
📍 Stamford, GB: #5 of 47 inventorsTop 15%
Overall (All Time): #1,252,194 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7409939 Cylinder head having an integrally cast rocker shaft pedestal Kathleen Bernadette Queenan, Richard Jackson 2008-08-12
7055510 Internal combustion engine having an internal barrier device to reduce oil carry-over Daniel Deane, John Robert Sherwood 2006-06-06
6988480 Cylinder block for an internal combustion engine having a locally thickened end wall Richard Jackson, Howard J. Paul 2006-01-24
6899064 Cylinder block for an internal combustion engine having a tapered coolant jacket Richard Jackson 2005-05-31