Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793409 | Method and apparatus for forming an insulated oil well casing | Jack E. Bridges, Homer L. Spencer, Vincent R. Young | 1988-12-27 |
| 4646277 | Control for guiding a boring tool | Jack E. Bridges | 1987-02-24 |