Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6182435 | Thermal and energy management method and apparatus for an aircraft | Richard E. Niggemann | 2001-02-06 |
| 6091168 | Rotor for a dynamoelectric machine | David G. Halsey, Hassan Mansir, Robert Grennan, William Greenlee | 2000-07-18 |
| 5129449 | High performance heat exchanger | — | 1992-07-14 |
| 5058390 | Aircraft vapor cycle cooling system with two speed control of a condenser fan and method of operation | Frederick L. Sindermann | 1991-10-22 |
| 5016707 | Multi-pass crossflow jet impingement heat exchanger | — | 1991-05-21 |
| 4880055 | Impingement plate type heat exchanger | Richard E. Niggemann | 1989-11-14 |