Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4578991 | System for identifying individual drill pipe | — | 1986-04-01 |
CN
Claude E. Nowlin — 1 Patent
Overall (All Time): #3,992,838 of 4,157,543Top 100%
1
Patents All Time