Inventor · disambiguated record
Robert Purrmann
Also filed as: PURRMANN ROBERT
16 granted patents·863 citations·filing 1973–1989
95Inventor score
Top patents by PatentIndex Score
16 records- 0197US4376835ACalcium depleted aluminum fluorosilicate glass powder for use in dental or bone cementsESPE PHARM PRAEP·Filed 1982·Granted Mar 15, 1983·264 cites·30 claims
- 0295US4360605AMixing component for dental glass ionomer cementsESPE PHARM PRAEP·Filed 1980·Granted Nov 23, 1982·165 cites·10 claims
- 0391US4927866AShapable material and shaped articles obtainable therefromESPE STIFTUNG·Filed 1989·Granted May 22, 1990·73 cites·22 claims
- 0489US4131729ADental compositions comprising acrylic esters of tricyclo [5.2.1.02,6 ] decane polymersESPE PHARM PRAEP·Filed 1978·Granted Dec 26, 1978·64 cites·12 claims
- 0588US4189365APhotopolymerizable compositions based on acrylic or methacrylic acid esters containing organic phosphitesESPE PHARM PRAEP·Filed 1978·Granted Feb 19, 1980·33 cites·10 claims
- 0685US4389497AUse of agglomerates of silicic acid as fillers in dental materialsESPE PHARM PRAEP·Filed 1980·Granted Jun 21, 1983·58 cites·16 claims
- 0779US4116788AProcess for the photopolymerization of acrylic acid ester-containing compositionsESPE PHARM PRAEP·Filed 1976·Granted Sep 26, 1978·30 cites·10 claims
- 0875US4544742A1,2,6-Thiadiazine-3,5-dione-1,1-dioxidesSCHMITT WERNER·Filed 1984·Granted Oct 1, 1985·33 cites·10 claims
- 0974US4067853ACompositions of bishydroxysubstitutedary di acrylates for prosthodontiaESPE PHARM PRAEP·Filed 1975·Granted Jan 10, 1978·24 cites·12 claims
- 1073US4093555AProduction of dental models and tooth replacement partsESPE PHARM PRAEP·Filed 1977·Granted Jun 6, 1978·24 cites·7 claims
- 1172US4372836ALight curable acrylic dental composition with calcium fluoride pigmentESPE PHARM PRAEP·Filed 1979·Granted Feb 8, 1983·22 cites·7 claims
- 1266US4443587A1,2,6-Thiadiazine-3,5-dione-1,1-dioxides and their use as polymerization acceleratorsABITZ MORF GRITSCHNEDER·Filed 1982·Granted Apr 17, 1984·25 cites·7 claims
- 1363US4493911ANonadhesive impression materialESPE PHARM PRAEP·Filed 1983·Granted Jan 15, 1985·19 cites·10 claims
- 1458US4095018AN,n-bis-hydroxyalkyl-3,5-di-t-butyl anilines accelerators for redox polymerization of unsaturated compoundsESPE PHARM PRAEP·Filed 1976·Granted Jun 13, 1978·8 cites·5 claims
- 1558US3986998AMixing liquid for silicate cementsESPE PHARM PRAEP·Filed 1973·Granted Oct 19, 1976·12 cites·7 claims
- 1651US4082722APre-mixed dental composition for the preparation of a dental silicate cementSCHMITT WERNER·Filed 1976·Granted Apr 4, 1978·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →