Donn R. Friedman

Chevron: 1 patents #54 of 178Top 35%

📍 Round Rock, TX: #17 of 70 inventorsTop 25%

🗺 Texas: #1,517 of 5,943 inventorsTop 30%

Overall (1997): #158,498 of 185,788Top 90%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5624548	Heavy naphtha hydroconversion process	Hsu-Hui Hsing, Richard Gene Nelson, Ooriapadical C. Abraham	1997-04-29