Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995252 | Method and apparatus for internally enhancing heat exchanger tubing | Ross A. Moyer, John R. McManus | 1991-02-26 |
| 4705103 | Internally enhanced tubes | Robert A. Zogg, Will C. Brown | 1987-11-10 |
| 4502847 | Exhaust gas operated vacuum pump assembly | Donald J. Pozniak, Michael J. McClain | 1985-03-05 |
| 4502848 | Exhaust gas operated vacuum pump assembly | Donald J. Pozniak | 1985-03-05 |
| 4479765 | Exhaust gas operated vacuum pump assembly | Donald J. Pozniak, Michael J. McClain | 1984-10-30 |