Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9695817 | Pump tester | Karl A. Ruiter | 2017-07-04 |
| 9194390 | Pump tester | Karl A. Ruiter | 2015-11-24 |
| 8880361 | Pump tester | Karl A. Ruiter | 2014-11-04 |
| 8738306 | Pump tester | Karl A. Ruiter | 2014-05-27 |
| 8626457 | Pump tester | Karl A. Ruiter | 2014-01-07 |
| 8626455 | Pump tester | Karl A. Ruiter | 2014-01-07 |
| 8589090 | Pump tester | Karl A. Ruiter | 2013-11-19 |
| 5009111 | Differential force balance apparatus | Paul E. West, Ronald Thomas | 1991-04-23 |