Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10994235 | Refillable air filter assembly | Zhiqun Zhang, Andrew R. Fox, Nicolas A. Echeverri | 2021-05-04 |
| 10328371 | Refillable air filter assembly | Zhiqun Zhang, Andrew R. Fox, Nicolas A. Echeverri | 2019-06-25 |
| 5533691 | Mandrel with twist lock apparatus | Kevin John Doyle | 1996-07-09 |