Inventor · disambiguated record
Walter Francis Johnston
Also filed as: JOHNSTON WALTER F · JOHNSTON WALTER FRANCIS
7 granted patents·107 citations·filing 1989–1999
87Inventor score
Top patents by PatentIndex Score
7 records- 0176US6025405ACompositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefromSHELL OIL CO·Filed 1999·Granted Feb 15, 2000·26 cites·49 claims
- 0271US6214897B1Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefromSHELL OIL CO·Filed 1999·Granted Apr 10, 2001·19 cites·34 claims
- 0364US5023137APolyester composition which is particularly suitable for use in thermoforming dual-ovenable traysGOODYEAR TIRE & RUBBER·Filed 1989·Granted Jun 11, 1991·20 cites·16 claims
- 0453US5431972ANucleation of crystallization in polyestersSHELL OIL CO·Filed 1993·Granted Jul 11, 1995·16 cites·12 claims
- 0552US6100307ACompositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefromSHELL OIL CO·Filed 1998·Granted Aug 8, 2000·9 cites·20 claims
- 0645US6080824ACompositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefromSHELL OIL CO·Filed 1999·Granted Jun 27, 2000·6 cites·24 claims
- 0741US5641549ACellularized polyestersSHELL OIL CO·Filed 1995·Granted Jun 24, 1997·11 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →