Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35116 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Johnny L. Butler, Richard E. Wakeland, Robert Metzger | 1995-12-12 |
| 5062439 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Johnny L. Butler, Richard E. Wakeland, Robert Metzger | 1991-11-05 |
| 5052427 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Johnny L. Butler, Richard E. Wakeland, Robert Metzger | 1991-10-01 |