HJ

Harry R. Janssen

CO Conoco: 1 patents #13 of 59Top 25%
📍 Ponca City, OK: #7 of 38 inventorsTop 20%
🗺 Oklahoma: #101 of 552 inventorsTop 20%
Overall (1982): #61,116 of 81,411Top 80%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4344754 Water cooled vertical gas distributor Harlan G. Graf, Don L. Edwards 1982-08-17