DJ

Donald S. de Vries, Jr.

📍 Newport Beach, CA: #697 of 1,653 inventorsTop 45%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,370,185 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4261583 Unitary rod gland assembly Jules M. Hock 1981-04-14
4214507 One-piece plastic piston Jules M. Hock 1980-07-29