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John Robert Sherwood

PL Perkins Engines Company Limited: 1 patents #78 of 209Top 40%
📍 Peterborough, GB: #97 of 222 inventorsTop 45%
Overall (All Time): #3,418,816 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7055510 Internal combustion engine having an internal barrier device to reduce oil carry-over Daniel Deane, Frank G. Hughes 2006-06-06