Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198062 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Frederick R. Helms, Wen-Hwang Lin, Roy Hai-Tien Loh +9 more | 2007-04-03 |
| 6682413 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Frederick R. Helms, Wen-Hwang Lin, Roy Hai-Tien Loh +5 more | 2004-01-27 |
| 6202487 | Liquid level detecting device including a container having a first receptacle and a second receptacle | Frank Urias, Robert E. Puckett | 2001-03-20 |
| 6050527 | Flow control device to eliminate cavity resonance | Leonard J. Hebert, Eric H. Nesbitt, Jerry Piro, Michael L. Sangwin | 2000-04-18 |
| 4625828 | Acoustic reflector for ground plane microphone | Belur N. Shivashankara, Gene Stubbs | 1986-12-02 |
| 4517088 | Filtering apparatus | — | 1985-05-14 |
| 4427547 | Backwashing-type filtering apparatus with filter support grid of ring-like segments | Alphonso L. Martinez | 1984-01-24 |
| 4422938 | Backwashing-type filtering apparatus | — | 1983-12-27 |