PS

Paul A. Silver

HE Hercules: 6 patents #65 of 715Top 10%
DD Dentsply Research And Development: 5 patents #17 of 167Top 15%
Overall (All Time): #471,213 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6696507 Dental composite restorative material and method of restoring a tooth John Subelka, Steven R. Jefferies, Donald Kapperman, Paul D. Hammesfahr 2004-02-24
6353040 Dental composite restorative material and method of restoring a tooth John Subelka, Steven R. Jefferies, Donald Kapperman, Paul D. Hammesfahr 2002-03-05
6262142 Translucent wear resistant dental enamel material and method Xiuling Wang, John Subelka, Steven R. Jefferies, Paul D. Hammesfahr 2001-07-17
5981620 Dental compounds, compositions, products and methods Paul D. Hammesfahr, Kewang Lu 1999-11-09
5710194 Dental compounds, compositions, products and methods Paul D. Hammesfahr, Kewang Lu 1998-01-20
5096644 Process for making a filled metathesis polymer article Zenichiro Endo, Shigeyoshi Hara, Hikoichiro Yamada 1992-03-17
5055499 Molded polymer article filled with inorganic material and production of said article Zenichiro Endo, Shigeyoshi Hara, Hikoichiro Yamada 1991-10-08
4902560 Improving the physical properties of glass composite polydicyclopentadiene by heat treatment 1990-02-20
4740537 Phosphorus based flame retardant composition for reaction injection molded polydicyclopentadiene 1988-04-26
4731395 Polydicyclopentadiene having improved odor Brian Byrne, Pierre I. Croquez, Barbara C. Gebbia 1988-03-15
4607077 Phosphazene flame retardants for reaction injection molded poly(dicyclopentadiene) Alexander Lukacs, III 1986-08-19