DH

Donald R. Hayes

EX ExxonMobil: 1 patents #5,661 of 10,161Top 60%
📍 Houston, TX: #12,319 of 21,073 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #4,063,922 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

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