Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32921 | Method of powder coating the inside of pipes with a continuous film of plastic material | — | 1989-05-09 |
| 4816296 | Tangential jet air pipe coating apparatus and method | — | 1989-03-28 |
| 4816297 | Method of powder coating the inside of pipes with a continuous film of plastic material | — | 1989-03-28 |
| 4527820 | Postive seal steel coupling apparatus and method | — | 1985-07-09 |
| 4420508 | Powder coating the interior of pipe | — | 1983-12-13 |
| 4328608 | Pipeline building method and apparatus | — | 1982-05-11 |
| 4328983 | Positive seal steel coupling apparatus and method therefor | — | 1982-05-11 |
| 4263871 | Apparatus for powder coating sucker rod | — | 1981-04-28 |
| 4243699 | Method of powder coating the inside of pipes with a continuous film of plastic material | — | 1981-01-06 |