Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12239595 | Differential air pressure systems | Eric R. KUEHNE, Sean Tremaine Whalen, Douglas Frank Schwandt, Robert Tremaine Whalen | 2025-03-04 |
| 12171715 | Systems, methods and apparatus for differential air pressure devices | Sean Tremaine Whalen, Douglas Frank Schwandt, Robert Tremaine Whalen, Edward Liou, Fritz Moore | 2024-12-24 |
| 10004656 | Systems, methods and apparatus for differential air pressure devices | Sean Tremaine Whalen, Douglas Frank Schwandt, Robert Tremaine Whalen, Edward Liou, Fritz Moore | 2018-06-26 |
| 9642764 | Differential air pressure systems | Eric R. KUEHNE, Sean Tremaine Whalen, Douglas Frank Schwandt, Robert Tremaine Whalen | 2017-05-09 |
| 8464716 | Differential air pressure systems | Eric R. KUEHNE, Sean Tremaine Whalen, Douglas Frank Schwandt, Robert Tremaine Whalen | 2013-06-18 |