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USPTO Patent Rankings Data through Sept 30, 2025
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Roya Tooloian — 2 Patents

Chevron: 2 patents #1,772 of 4,788Top 40%
Houston, TX: #8,651 of 21,073 inventorsTop 45%
Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,300,182 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5191143 Preparation of isobutylene Wei-Yang Su, William A. Smith 1993-03-02
5157163 Purification of methyl tertiary-butyl ether William A. Smith 1992-10-20