PK

Peter Karbstein

AP Aco Polymer Products: 2 patents #4 of 17Top 25%
AK Aco Sevrin Ahlmann Gmbh & Co Kg: 2 patents #12 of 41Top 30%
Overall (All Time): #1,306,139 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4699544 Protective frame device for drainage channel — 1987-10-13
4630966 Drainage channel — 1986-12-23
4560302 Draining ditch for draining of roadways — 1985-12-24
4472078 Frame for draining ditches — 1984-09-18