Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919244 | Submerged clarifier launder | Tor Heimdal, John Vorwaller, Hugh Ryan Clark, Todd Kline, Ralph Petrone +2 more | 2018-03-20 |
| 7556397 | Lamp assembly for a controlled environment chamber | Bruce Kettner | 2009-07-07 |
| 5845401 | Crash tolerant air bearing spindle | Jeffrey K. Rhoton | 1998-12-08 |
| 5692840 | Crash tolerant air bearing spindle | Jeffrey K. Rhoton | 1997-12-02 |
| 5644564 | Vacuum chuck for rotating data discs | — | 1997-07-01 |
| 5025340 | Rotary chuck for centering and retaining data discs | — | 1991-06-18 |
| 4881745 | Mechanical plate clamp | — | 1989-11-21 |