GS

Gregory E. Sparks

JD John Deere: 1 patents #28 of 169Top 20%
📍 Waterloo, IA: #1 of 16 inventorsTop 7%
🗺 Iowa: #89 of 549 inventorsTop 20%
Overall (1989): #109,783 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4799645 Pilot operated hydraulic control valve Kenneth D. Kramer 1989-01-24