DG

Dave Gerwing

Overall (All Time): #2,218,372 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6453623 Roof snow barrier Robin Nelson, Jiri Krupka, Steven Paul Guenette, Colin Fabian 2002-09-24
6215847 Product irradiator Rob Perrins 2001-04-10