Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10981099 | Expandable air filters | Glen O. Gregerson, Laura C. Chesnut, Danielle M. Schreppel, Stephen M. Sanocki, Zhiqun Zhang +1 more | 2021-04-20 |
| 10959547 | Folding flap hanger device having multiple peel fronts | Joseph A. Hoffman, Angela L. Pan, Chaodi Li, Michael B. Runge | 2021-03-30 |
| 10940416 | Air filter devices with gap sealing unit | Glen O. Gregerson, Thomas J. Herbrand, David J. Prince, Danielle M. Schreppel, Judd D. Olson | 2021-03-09 |