DS

David P. Sheffield

SG Scott Specialty Gases: 1 patents #4 of 9Top 45%
📍 Whitemarsh, PA: #129 of 224 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,853,178 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5123409 Emergency oxygen supply system Richard J. Boyles, Charles McMenamy 1992-06-23