WH

William J. Heilman

PP Pennzoil Products: 11 patents #1 of 32Top 4%
GO Gulf Oil: 10 patents #6 of 100Top 6%
PS Pennzoil-Quaker State: 3 patents #3 of 22Top 15%
Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
GD Gulf Research & Development: 1 patents #73 of 106Top 70%
📍 Houston, TX: #551 of 21,073 inventorsTop 3%
🗺 Texas: #4,073 of 125,132 inventorsTop 4%
Overall (All Time): #132,461 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4251417 Novel acetylene end-capped polyimide oligomers Wai Y. Chow 1981-02-17
4251420 End-capped polyimide oligomers Patricia A. Antonoplos 1981-02-17
4218555 Process for preparation of acetylene end-capped polyimide oligomers Patricia A. Antonoplos, Clarence D. Bertino 1980-08-19
4206106 Vinyl end-capped polyimide oligomers Daniel J. Hurley 1980-06-03