Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 11682281 | Security system and apparatus | — | 2023-06-20 | |
| 11393311 | Security system and apparatus | — | 2022-07-19 | |
| 6854955 | Internal lubrication screw pump for hollow shaft | Philip Conrad Shaffer | 2005-02-15 | |
| 6215212 | Shaftless rotor construction | William Greenlee, David G. Halsey, W. G. Neil Smith | 2001-04-10 | $43,075,000 |
| 6091168 | Rotor for a dynamoelectric machine | David G. Halsey, Hassan Mansir, William Greenlee, Dam C. Nguyen | 2000-07-18 | $65,716,000 |
| 5994804 | Air cooled dynamoelectric machine | William Greenlee, David G. Halsey, W. G. Neil Smith | 1999-11-30 | |
| 5125806 | Integrated variable speed compressor drive system | David C. Quick, Allen Wood | 1992-06-30 | $2,660,000 |
| 5069692 | Fully integrated inert gas and oxidizer replenishment system | John N. Rice, Steven E. Squier | 1991-12-03 | $1,546,000 |