Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35116 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Richard E. Wakeland, Donald R. Batson, Robert Metzger | 1995-12-12 |
| 5062439 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Richard E. Wakeland, Donald R. Batson, Robert Metzger | 1991-11-05 |
| 5052427 | Method and apparatus to facilitate the injection of sealant into a pressurized fluid member | Richard E. Wakeland, Donald R. Batson, Robert Metzger | 1991-10-01 |
| 4271870 | Method and apparatus for blocking the flow of fluids through an elongated pipe section | Joe L. Valigura, Jr. | 1981-06-09 |