DB

David Allen Barker

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
📍 Cypress, TX: #499 of 1,064 inventorsTop 50%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,109,595 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7981170 Gasoline-oxygenate blend and method of producing the same Charles A. Lieder, Lloyd Elbert Funk 2011-07-19
6214624 Use of perfluorocarbons as tracers in chemical compositions Thomas Clayton Forschner, Randall Lee Shearer 2001-04-10