DK

Donald A. Keyworth

TC Tenneco Chemicals: 3 patents #11 of 54Top 25%
TO Tenneco Oil: 3 patents #1 of 8Top 15%
PC Petro-Tex Chemical: 2 patents #3 of 7Top 45%
📍 Houston, TX: #2,881 of 21,073 inventorsTop 15%
🗺 Texas: #18,864 of 125,132 inventorsTop 20%
Overall (All Time): #671,089 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4816139 Method for removing sulfur compounds from C.sub.6 and lower alkanes 1989-03-28
4579990 Process for the oligomerization of propylene 1986-04-01
4571439 Method for controlled oligomerization/etherification of propylene 1986-02-18
4570026 Production of isobutene from methyl tertiary butyl ether Cecil G. McFarland 1986-02-11
4540839 Process for the production of polymer gasoline Cecil G. McFarland 1985-09-10
4277567 Flame-retardant vinyl aromatic polymer compositions David C. Purpi 1981-07-07
4191588 Method of cleaning fouled heat exchangers and other equipment Jerome R. Sudduth 1980-03-04
4181536 Process for the cleaning of fouled heat exchangers and other equipment Jerome R. Sudduth 1980-01-01