DG

David C. Grantz

BC Black Clawson Company: 1 patents #36 of 74Top 50%
TC Thermo Black Clawson: 1 patents #5 of 16Top 35%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,242,213 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6120648 Apparatus for pulping and deinking Don Scott, William J. Fondow, Albert S. Kelly, Peter Seifert 2000-09-19
5762756 Methods and apparatus for pulping and deinking Don Scott, William J. Fondow, Albert F. Kelly, Peter Seifert 1998-06-09