PC

Paul J. Cheng

PP Phillips Petroleum: 6 patents #5 of 198Top 3%
📍 Bartlesville, OK: #5 of 142 inventorsTop 4%
🗺 Oklahoma: #5 of 552 inventorsTop 1%
Overall (1982): #604 of 81,411Top 1%
6
Patents 1982

Issued Patents 1982

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4339422 Carbon black manufacture 1982-07-13
4328199 Method for producing carbon black King L. Mills 1982-05-04
4327069 Process for making carbon black 1982-04-27
4321248 Method for vortex flow carbon black production 1982-03-23
4315901 Process for producing carbon black King L. Mills 1982-02-16
4313921 Carbon black process 1982-02-02