HM

Harold W. Mark

PP Phillips Petroleum: 1 patents #61 of 198Top 35%
📍 Bartlesville, OK: #46 of 142 inventorsTop 35%
🗺 Oklahoma: #101 of 552 inventorsTop 20%
Overall (1982): #60,894 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4326990 Passivating agent composition and method for its preparation Ernest A. Zuech 1982-04-27