RJ

Robert A. Grigsby, Jr.

HP Huntsman Petrochemical: 28 patents #3 of 174Top 2%
Chevron: 25 patents #137 of 4,788Top 3%
HI Huntsman International: 5 patents #26 of 400Top 7%
HZ Huntsman Corporation Hungary Zrt: 4 patents #1 of 14Top 8%
📍 Spring, TX: #18 of 2,039 inventorsTop 1%
🗺 Texas: #1,311 of 125,132 inventorsTop 2%
Overall (All Time): #41,683 of 4,157,543Top 2%
58
Patents All Time

Issued Patents All Time

Showing 51–58 of 58 patents

Patent #TitleCo-InventorsDate
4536522 Manufacture of polyols and rigid polyurethane foam using thiodialkylene glycols George P. Speranza, Michael E. Brennan, Ernest L. Yeakey 1985-08-20
4526972 Ultraviolet light stabilizing sterically hindered polyoxyalkylene amines George P. Speranza 1985-07-02
4503197 Water soluble polyethylene terephthalate derivatives George P. Speranza 1985-03-05
4490485 Manufacture of flexible polyurethane foam containing a condensation product of polyethylene terephthalate Bruce W. Peterson, George P. Speranza 1984-12-25
4485196 Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate George P. Speranza, Michael E. Brennan 1984-11-27
4469895 Process for preparing alcohols from olefins and synthesis gas John F. Knifton 1984-09-04
4469824 Liquid terephthalic ester polyols and polyisocyanurate foams therefrom George P. Speranza, Michael E. Brennan 1984-09-04
4451679 Alcohols and aldehydes prepared from olefins and synthesis gas John F. Knifton, Jiang-Jen Lin, Walter H. Brader, Jr. 1984-05-29