Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550471 | Heated clothing for use in cold weather and cold climate regions | Kazimierz Szymocha | 2003-04-22 |
| 6250389 | Method of oil/gas well stimulation | — | 2001-06-26 |
| 5247990 | Centralizer | Dzung H. Nguyen | 1993-09-28 |
| 5033545 | Conduit of well cleaning and pumping device and method of use thereof | — | 1991-07-23 |