Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062667 | Connection seal | Jack E. Miller, Stewart A. Fox, Bryan Lane | 1991-11-05 |
| 4991624 | Safety valves and control apparatus | Robert J. Pirkle, Jr. | 1991-02-12 |
| 4949749 | Safety valves and control apparatus for underground storage facilities | Robert J. Pirkle, Jr. | 1990-08-21 |
| 4456073 | Flexible connection apparatus | James R. Barth, Wilbur A. Hitchcock, Jack E. Miller | 1984-06-26 |