Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979361 | Stepped diffuser | Jim A. Clark, James H. Shadowen | 1990-12-25 |
BF
Barton R. Field
Overall (All Time): #3,917,746 of 4,157,543Top 95%
1
Patents All Time