EJ

Edgar M. Purvis, Jr.

CS Columbia Gas System Service: 6 patents #3 of 34Top 9%
📍 Troy, OH: #65 of 367 inventorsTop 20%
🗺 Ohio: #13,499 of 73,341 inventorsTop 20%
Overall (All Time): #894,829 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4742687 Dual cooling/heating process and composition Edward A. Reid, Jr., F. Bert Cook, Horatio H. Krause, Jr. 1988-05-10
4742693 Absorption refrigeration and heat pump system Edward A. Reid, Jr., F. Bert Cook, Stephen P. Cremean, Richard H. Merrick 1988-05-10
4722193 Absorption refrigeration and heat pump system Edward A. Reid, Jr., F. Bert Cook, Stephen P. Cremean 1988-02-02
4719767 Absorption refrigeration and heat pump system Edward A. Reid, Jr., F. Bert Cook, Edward M. Winter, Richard H. Merrick, Stephen P. Cremean 1988-01-19
4691532 Dual cooling/heating system energy recovery Edward A. Reid, Jr., F. Bert Cook 1987-09-08
4646541 Absorption refrigeration and heat pump system Edward A. Reid, Jr., F. Bert Cook, Edward M. Winter, Horatio H. Krause, Jr. 1987-03-03