Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10730192 | Methods and systems for providing protection against harmful material | Marc Cordes | 2020-08-04 |
| 10538001 | Methods and systems for providing protection against harmful materials | Marc Cordes | 2020-01-21 |
| 9699944 | Methods and devices for reducing communication and power signal leakages from filter assemblies | Marc Cordes | 2017-07-04 |
| 8872042 | Methods and systems for providing inflatable lightweight shielded enclosures | Marc Cordes | 2014-10-28 |
| 8830698 | Methods and devices for reducing communication and power signal leakages from filter assemblies | Marc Cordes | 2014-09-09 |
| 6035644 | Turbine control valve | Wendell C. Drown, John L. Seger | 2000-03-14 |
| 5765596 | Ceramic heat exchanger | Faress H. Rahman, Thomas P. E. Lebeau, Barbara K. Severin | 1998-06-16 |
| 5296112 | Oxygen monitoring devices | John L. Seger | 1994-03-22 |
| 5250090 | Separation devices | Christian Lee Vandervort | 1993-10-05 |
| 4892139 | Means and method for preventing unwanted accumulation in heat exchangers | Eric Roy Norster | 1990-01-09 |
| 4380429 | Recirculating burner | John W. Bjerklie | 1983-04-19 |
| 4332295 | Composite ceramic heat exchange tube | John W. Bjerklie, Robert A. Penty | 1982-06-01 |
| 4254715 | Solid fuel combustor and method of burning | John W. Bjerklie, Ivan G. Most, Kenneth G. Hagen | 1981-03-10 |