Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5452805 | Spiral separator | Frank S. Knoll | 1995-09-26 |
| 5184731 | Spiral separator with improved separation surface | Robert M. Carver | 1993-02-09 |
| 4616485 | Temperature controller for an air conditioning apparatus | Jimmie D. Gillett, Ronald E. Ellis | 1986-10-14 |
| 4255623 | Apparatus for pulse train measurement | Larry A. Barnes, Daniel Thomas Daugherty, Michael Flynn, Kenneth R. Welch | 1981-03-10 |