HE

Howard F. Efner

PP Phillips Petroleum: 1 patents #44 of 108Top 45%
📍 Bartlesville, OK: #29 of 79 inventorsTop 40%
🗺 Oklahoma: #137 of 631 inventorsTop 25%
Overall (1997): #139,754 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5661200 Glass-reinforced silane, carboxylic acid or anhydride-grafted branched alpha-olefin polymers with epoxy resin Edwin Boudreaux, Jr., Mary J. Hagenson 1997-08-26