CB

Charles W. Burkhardt

PE Petrolite: 3 patents #36 of 143Top 30%
📍 Florissant, MO: #87 of 452 inventorsTop 20%
🗺 Missouri: #5,256 of 23,789 inventorsTop 25%
Overall (All Time): #1,290,818 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5553632 Hair styling device 1996-09-10
5538723 Method for suppressing the viscosity of bioinsecticide slurries and related slurries Kevin McCarthy, Steven Holmes, David J. Poelker 1996-07-23
4918959 Method for preventing the buildup of oily deposits on rolling mill scale Dennis P. Parazak, Rainer Langwald 1990-04-24
4411814 Use of polyamines as demulsifiers 1983-10-25