TB

Thomas J. Butzen

📍 Greenfield, WI: #68 of 223 inventorsTop 35%
🗺 Wisconsin: #13,258 of 40,088 inventorsTop 35%
Overall (All Time): #1,645,088 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5678508 Easy clean and change litter box machine — 1997-10-21
4421096 Vent damper drive — 1983-12-20
4262652 Vent damper drive — 1981-04-21