PJ

Paul H. Johnson

PP Phillips Petroleum: 2 patents #29 of 198Top 15%
📍 Snohomish, WA: #1 of 2 inventorsTop 50%
🗺 Washington: #28 of 744 inventorsTop 4%
Overall (1982): #9,436 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4348361 Carbon black recovery — 1982-09-07
4316876 Apparatus for producing carbon black King L. Mills 1982-02-23