TC

Tin-Tack Peter Cheung

PP Phillips Petroleum: 2 patents #21 of 108Top 20%
📍 Kingwood, TX: #5 of 50 inventorsTop 10%
🗺 Texas: #541 of 5,943 inventorsTop 10%
Overall (1997): #21,752 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5659107 Separation of cyclopentadiene from dicyclopentadiene Marvin M. Johnson 1997-08-19
5625101 Cyclodimerization of butadiene Marvin M. Johnson 1997-04-29