DS

David L. M. Sawchuk

PR Polysar Rubber: 1 patents #7 of 25Top 30%
PG Polytec Gmbh: 1 patents #202 of 432Top 50%
📍 Sarnia, CA: #141 of 327 inventorsTop 45%
Overall (All Time): #2,294,025 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5307695 Water sampling unit — 1994-05-03
4818406 Biological degradation of chemicals bearing an oxydibenzene nucleus Ronald H. Olsen 1989-04-04