Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6706998 | Simulated laser spot enlargement | — | 2004-03-16 |
| 6706999 | Laser beam tertiary positioner apparatus and method | Spencer Barrett, Mark A. Unrath | 2004-03-16 |
| 6430465 | Abbe error correction system and method | — | 2002-08-06 |
| 5847960 | Multi-tool positioning system | Robert M. Pailthorp, Mark A. Unrath, Thomas Richardson, Alan Cable | 1998-12-08 |
| 5798927 | Apparatus and method for coordinating the movements of stages in a multi-stage multi-rate positioner system | Robert M. Pailthorp | 1998-08-25 |
| 5751585 | High speed, high accuracy multi-stage tool positioning system | Robert M. Pailthorp, Mark A. Unrath | 1998-05-12 |
| 5518177 | Compressed air hydrant heater device | Timothy J. Weaver, David Riley, William Bryan Smith | 1996-05-21 |
| 5400966 | Machine for making artificial snow and method | Timothy J. Weaver, David Riley, William Bryan Smith | 1995-03-28 |
| 4648968 | Floating cover tank with guides for vertical displacement of the cover | — | 1987-03-10 |
| 4592768 | Apparatus and process for desalination combining freeze concentration, centrifugation, and reverse osmosis | Alan R. Blankshain | 1986-06-03 |
| 4559997 | Shell and tube heat exchanger with tube top end wiper to free solids | — | 1985-12-24 |
| 4532985 | Falling film heat exchanger | — | 1985-08-06 |
| 4501122 | Liquid piston heat pump | — | 1985-02-26 |