DP

Douglas F. Parker

📍 Wichita Falls, TX: #63 of 187 inventorsTop 35%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,264,975 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5820505 Variable ratio transmission 1998-10-13
4580186 Grounding and ground fault detection circuits W. Garth Bradshaw, Mark Augustine 1986-04-01