Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10512866 | Filter housing for filter fan | Seng Chang, Douglas L. Neuenfeldt, Jeffrey Thibedeau, William J. Nepsha, Richard Raisanen +3 more | 2019-12-24 |
| D803365 | Air conditioner | Richard Raisanen, Douglas L. Neuenfeldt, Michael Koehler, Randal Schroeder, William J. Nepsha +2 more | 2017-11-21 |
| D739928 | Air conditioner cover | Richard Raisanen, Douglas L. Neuenfeldt, Michael Koehler, Randal Schroeder, William J. Nepsha +2 more | 2015-09-29 |