HG

Henry Grandin

NP National Refrigeration Products: 1 patents #7 of 9Top 80%
📍 Richboro, PA: #70 of 125 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,833,916 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5247802 Method for recovering refrigerant Michel J. Maniez, Thomas J. Moffatt 1993-09-28