SS

Stephen C. Stem

Shell Oil Compny: 5 patents #661 of 4,423Top 15%
📍 Houston, TX: #4,499 of 21,073 inventorsTop 25%
🗺 Texas: #28,318 of 125,132 inventorsTop 25%
Overall (All Time): #1,060,633 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4982048 Isomerization process with preliminary normal paraffin and mono-methyl paraffin feed capture step Wayne Errol Evans 1991-01-01
4855529 Isomerization process with preliminary normal paraffin and mono-methyl paraffin feed capture step Wayne Errol Evans 1989-08-08
4804802 Isomerization process with recycle of mono-methyl-branched paraffins and normal paraffins Wayne Errol Evans 1989-02-14
4717784 Total isomerization process with mono-methyl-branched plus normal paraffin recycle stream Wayne Errol Evans 1988-01-05
4622130 Economic combinative solvent and catalytic dewaxing process employing methylisopropyl ketone as the solvent and a silicate-based catalyst 1986-11-11