JW

Johannes C. van der Werff

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
📍 Saginaw, TX: #159 of 370 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,278,971 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5574095 Method for producing asphalts containing an epoxy-containing polymer and polyamine 1996-11-12
5519073 Process for the preparation of a phosphoric-acid-containing asphalt/polymer mixture and resulting asphalt composition thereof Son Nguyen 1996-05-21