Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6559248 | Process of removing contaminants from an olefin stream using extractive distillation | Dan E. Hendriksen, Minquan Cheng, Keith H. Kuechler, David Lumgair, Michael Nicoletti | 2003-05-06 |
| 5809793 | Timer circuit for heating or air conditioner unit | Kenneth C. Volz, Donald D. Martell, Jerome R. Mullaly | 1998-09-22 |
| 4265612 | Intermittent pulsing gas ignition system | Pat Romanelli, Robert J. Romanelli | 1981-05-05 |