Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10921020 | Air filter comprising frame with bowed inner edge | Glen O. Gregerson, Jonathan M. Lise, Kimberly W. Menzenski | 2021-02-16 |
DZ
David W. Ziemann
Overall (2021): #477,208 of 548,734Top 90%
1
Patents 2021