Inventor
PURRMANN ROBERT
16 patents
⚠️ This page may combine multiple inventors who share the name “PURRMANN ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ESPE PHARM PRAEP
12 patentsUS4376835AMar 15, 1983
Calcium depleted aluminum fluorosilicate glass powder for use in dental or bone cements
ESPE PHARM PRAEP264 citations99
US4360605ANov 23, 1982
Mixing component for dental glass ionomer cements
ESPE PHARM PRAEP165 citations99
US4389497AJun 21, 1983
Use of agglomerates of silicic acid as fillers in dental materials
ESPE PHARM PRAEP58 citations95
US4131729ADec 26, 1978
Dental compositions comprising acrylic esters of tricyclo [5.2.1.02,6 ] decane polymers
ESPE PHARM PRAEP64 citations95
US4189365AFeb 19, 1980
Photopolymerizable compositions based on acrylic or methacrylic acid esters containing organic phosphites
ESPE PHARM PRAEP33 citations92
US4493911AJan 15, 1985
Nonadhesive impression material
ESPE PHARM PRAEP19 citations82
US4116788ASep 26, 1978
Process for the photopolymerization of acrylic acid ester-containing compositions
ESPE PHARM PRAEP30 citations82
US4372836AFeb 8, 1983
Light curable acrylic dental composition with calcium fluoride pigment
ESPE PHARM PRAEP22 citations81
US4093555AJun 6, 1978
Production of dental models and tooth replacement parts
ESPE PHARM PRAEP24 citations81
US4067853AJan 10, 1978
Compositions of bishydroxysubstitutedary di acrylates for prosthodontia
ESPE PHARM PRAEP24 citations81
US4095018AJun 13, 1978
N,n-bis-hydroxyalkyl-3,5-di-t-butyl anilines accelerators for redox polymerization of unsaturated compounds
ESPE PHARM PRAEP8 citations74
US3986998AOct 19, 1976
Mixing liquid for silicate cements
ESPE PHARM PRAEP12 citations72