Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DH

David N. Hoffman — 1 Patent

WAWacker: 1 patents #24 of 42Top 60%
Lomira, WI: #8 of 16 inventorsTop 50%
Wisconsin: #23,997 of 40,088 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David N. Hoffman has been granted 1 US patent while listed as an inventor at Wacker. All of these patents were granted in 2000. David N. Hoffman ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David N. Hoffman in Lomira, WI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6012285 Exhaust pipe with improved drain Todd J. Lutz 2000-01-11