Keith C. Yao

EX ExxonMobil: 2 patents #108 of 667Top 20%

📍 Sarnia, CA: #4 of 31 inventorsTop 15%

Overall (1989): #22,205 of 140,708Top 20%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4846962	Removal of basic nitrogen compounds from extracted oils by use of acidic polar adsorbents and the regeneration of said adsorbents	—	1989-07-11
4808300	Simultaneous removal of aromatics and wax from lube distillate by an adsorption process	—	1989-02-28