Donald L. Peters

PP Phillips Petroleum: 2 patents #22 of 170Top 15%

📍 Naperville, IL: #18 of 158 inventorsTop 15%

🗺 Illinois: #289 of 3,813 inventorsTop 8%

Overall (1989): #28,791 of 140,708Top 25%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4859397	Preventing gas leakage around blow needle in blow molding method	—	1989-08-22
4799876	Blow molding apparatus	—	1989-01-24