DP

David D. Parrish

NI Nl Industries: 2 patents #47 of 213Top 25%
📍 Spring, TX: #948 of 2,039 inventorsTop 50%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,361,836 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4378844 Explosive cutting system John A. Barton 1983-04-05
4291623 Binary electroexplosive device and method of assembly thereof Ralph L. Robinson, Jr. 1981-09-29