DH

Donald R. Hayes

EX ExxonMobil: 1 patents #154 of 490Top 35%
📍 Houston, TX: #107 of 558 inventorsTop 20%
🗺 Texas: #432 of 2,272 inventorsTop 20%
Overall (1982): #68,821 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4311327 Universal joint for multiple flowline system John E. Ortloff, Clarence F. Stelzer, Jr. 1982-01-19