RA

Roy A. Allen

Shell Oil Compny: 4 patents #842 of 4,423Top 20%
📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,307,828 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4528356 Process for preparing higher molecular weight epoxy resins 1985-07-09
4393181 Polyfunctional phenolic-melamine epoxy resin curing agents 1983-07-12
4330644 Curable tris(hydroxyalkyl) aminomethane-modified epoxy resin composition 1982-05-18
4316003 Epoxy resin curing agents Mark F. Dante 1982-02-16