DH

David E. Hackett

Caterpillar: 3 patents #31 of 374Top 9%
📍 Nashville, IL: #1 of 17 inventorsTop 6%
🗺 Illinois: #217 of 4,656 inventorsTop 5%
Overall (1997): #17,280 of 185,788Top 10%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5692462 Transfer valve assembly providing variable valve lash 1997-12-02
5647307 Valving for dual compression/expansion engine and method of assembling the same John M. Clarke 1997-07-15
5611308 Apparatus for interconnecting an actuator and an exhaust valve opening member 1997-03-18