DS

David W. Sergius

PI Polar Industries: 2 patents #1 of 5Top 20%
📍 Burnaby, CA: #433 of 1,166 inventorsTop 40%
Overall (All Time): #2,283,734 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5379607 Refrigerant recovery and recycling system 1995-01-10
5263331 Refrigerant recovery and recycling system 1993-11-23