DH

Douglas P. Hopkins

📍 San Antonio, TX: #2,044 of 5,017 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,313,946 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D314417 Sound emitting bobber Hubert G. Lovelady 1991-02-05
D314037 Luminous bobber Hubert G. Lovelady 1991-01-22