Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10406472 | Collapsible air filter | Zhiqun Zhang, Andrew R. Fox, Matthew T. Scholz, Gene B. Portelli, Amanda B. Dauphinais +3 more | 2019-09-10 |
| 10328371 | Refillable air filter assembly | Zhiqun Zhang, Andrew R. Fox, Gary N. Eastlund | 2019-06-25 |
| 10286349 | Air filter use indicators | Glen O. Gregerson, Andrew R. Fox | 2019-05-14 |
| 10213519 | Fragrance dispenser for air filter | Kannan Seshadri, Neeraj Sharma, Le'Bron K. Patterson, Jeffrey M. Imsande, Joon Chatterjee | 2019-02-26 |