Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5579841 | Plugs for well logging operations | John L. Schneider, Hugo M. Barcia | 1996-12-03 |
| 5167282 | Apparatus and method for detonating well perforators | John L. Schneider, Hugo M. Barcia, Leslie Jordan | 1992-12-01 |