Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434634 | Method and apparatus for supporting and moving a long-span structure on a rail system | Mark Len Fedor, Craig J. Johnson, Barry Ho-yeen Keung, John Hamill | 2022-09-06 |
| 10876913 | Device and method for testing crane tong grip strength | Mark Len Fedor, Nelson Elroy Baker | 2020-12-29 |
| 4912301 | Apparatus and method for the production of oxides of lead | B. F. McKinney, Earl E. Busdieker | 1990-03-27 |