Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7574858 | Method of and system for heat recovery for an internal combustion engine | — | 2009-08-18 |
| 7036463 | Heat exchanger for liquid vaporization | — | 2006-05-02 |
| 6032747 | Water-based drilling fluid deacidification process and apparatus | Donald A. Thorssen | 2000-03-07 |
| 5663121 | Method and apparatus for providing a stream of inert gases in underbalanced drilling of a well bore | — | 1997-09-02 |