FS

Fred T. Sherk

PP Phillips Petroleum: 4 patents #6 of 170Top 4%
📍 Bartlesville, OK: #5 of 129 inventorsTop 4%
🗺 Oklahoma: #9 of 749 inventorsTop 2%
Overall (1989): #5,297 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4882418 Washing arylene sulfide polymers with water plus a reducing agent Guy Senatore, Afif M. Nesheiwat 1989-11-21
4839411 Solid state curing of poly(arylene sulfide) resins in reduced oxygen atmospheres Kenneth C. Hoover, Joseph E. Figard 1989-06-13
4807672 Empty-full indicator for solids tanks and blenders Jimmy M. Gilbreth 1989-02-28
4801664 Acid wash of polyarylene sulfides Afif M. Nesheiwat, Guy Senatore 1989-01-31