RZ

Robert L. Zimmerman

Chevron: 69 patents #26 of 4,788Top 1%
HP Huntsman Petrochemical: 13 patents #13 of 174Top 8%
🗺 Texas: #670 of 125,132 inventorsTop 1%
Overall (All Time): #21,783 of 4,157,543Top 1%
82
Patents All Time

Issued Patents All Time

Showing 76–82 of 82 patents

Patent #TitleCo-InventorsDate
4237282 Urea derivative and use as polyurethane catalyst George P. Speranza 1980-12-02
4235811 Compounds from aminated alkoxylated aliphatic alcohol Heinz Schulze, Carter G. Naylor 1980-11-25
4228310 Polyol preparation George P. Speranza, Thomas Howard Austin 1980-10-14
4228248 Morpholine derivatives and use as polyurethane catalyst 1980-10-14
4221877 Modified diphenylmethane diisocyanates useful in polyurethanes or polyisocyanurates Michael Cuscurida, Bobbie J. Ramey, deceased 1980-09-09
4194069 Urea derivative and use as polyurethane catalyst George P. Speranza 1980-03-18
4186254 Amine derivatives and use as polyurethane catalyst Michael Cuscurida 1980-01-29