Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905168 | Portable convertible blast effects shield | John W. Pastrnak, Rocky Hollaway, Steve Deteresa, Walter Grundler, Lisle B. Hagler +2 more | 2011-03-15 |
| 7819049 | Portable convertible blast effects shield | John W. Pastrnak, Rocky Hollaway, Steve Deteresa, Walter Grundler, Lisle B. Hagler +2 more | 2010-10-26 |
| 7219588 | Portable convertible blast effects shield | John W. Pastrnak, Rocky Hollaway, Steve Deteresa, Walter Grundler, Lisle B. Hagler +2 more | 2007-05-22 |
| 5372391 | Internal pipe attachment mechanism | Richard M. Bast, Dwayne A. Chesnut, Joseph P. Lennon, John W. Pastrnak, Joseph A. Smith | 1994-12-13 |
| 5213444 | Oil/gas collector/separator for underwater oil leaks | — | 1993-05-25 |
| 5191940 | Oil/gas separator for installation at burning wells | Carol T. Alonso, Donald Bender, Barry Bowman, Alan K. Burnham, Dwayne A. Chesnut +6 more | 1993-03-09 |