DR

David B. Rennhack

📍 Coppell, TX: #234 of 495 inventorsTop 50%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,233,144 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6332846 Device for positioning the head of a golfer during the golf swing — 2001-12-25
5580321 Golf swing training device — 1996-12-03