Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DZ

David W. Ziemann — 1 Patent in 2021

3M: 1 patents #451 of 1,276Top 40%
Coon Rapids, MN: #21 of 57 inventorsTop 40%
Minnesota: #2,374 of 7,038 inventorsTop 35%
Overall (2021): #477,208 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10921020 Air filter comprising frame with bowed inner edge Glen O. Gregerson, Jonathan M. Lise, Kimberly W. Menzenski 2021-02-16