Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10731669 | Tee-tube pressure vessel | — | 2020-08-04 |
| 6187537 | Process and apparatus for forming a dry DNA transfer film, a transfer film product formed thereby and an analyzing process using the same | Donald E. Zinn, Jr. | 2001-02-13 |
| 5865603 | Multi-compression coil springs for a liquid pump | — | 1999-02-02 |
| 5517008 | Steam powered liquid pump mechanical cycle counter | — | 1996-05-14 |
| 5426990 | Over-center toggle linkage valve actuating mechanism with adjustable tension spring preloading | — | 1995-06-27 |
| RE34957 | Leak proof, preloaded, high-biasing force float-operated over-center valve actuating mechanism | — | 1995-05-30 |
| 5141405 | Leak proof, preloaded, high-biasing force float-operated over-center valve actuating mechanism | — | 1992-08-25 |
| 4745944 | Self-cleaning, fluid pressure biased gate valve | — | 1988-05-24 |
| 4533113 | Compact high torque rotary valve operator for simultaneous actuation of multiple rotary valves | — | 1985-08-06 |