RV

Richard Vanderpoel

DR Diesel Engine Retarders: 2 patents #1 of 13Top 8%
📍 Granby, MA: #2 of 13 inventorsTop 20%
🗺 Massachusetts: #731 of 6,384 inventorsTop 15%
Overall (2002): #44,970 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6474277 Method and apparatus for valve seating velocity control John A. Schwoerer 2002-11-05
6422186 Lost motion rocker arm system with integrated compression brake 2002-07-23