KH

Karl R. Hertel

EN Envirex: 3 patents #9 of 52Top 20%
📍 Delafield, WI: #41 of 130 inventorsTop 35%
🗺 Wisconsin: #10,776 of 40,088 inventorsTop 30%
Overall (All Time): #1,297,349 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5131890 Reduced friction spool bearing and method of making same James Wiegand 1992-07-21
5080852 Method of making a bearing sleeve for a split sprocket wheel assembly James Wiegand 1992-01-14
5035681 Reduced friction sprocket assembly for use in corrosive environments James Wiegand 1991-07-30
4437419 Incinerator 1984-03-20