Inventor · disambiguated record
Hermann Richtzenhain
Also filed as: RICHTZENBAIN HERMANN · RICHTZENHAIN HERMANN
31 granted patents·239 citations·filing 1973–1981
97Inventor score
Top patents by PatentIndex Score
31 records- 0196US4399300AMethod of preparing malonic acid dialkyl estersDYNAMIT NOBEL AG·Filed 1981·Granted Aug 16, 1983·56 cites·12 claims
- 0287US4059618ATetrahalogen xylylene diacrylates, tetrahalogen xylyl acrylates, pentahalogen benzyl acrylates, and substituted acrylatesDYNAMIT NOBEL AG·Filed 1975·Granted Nov 22, 1977·21 cites·8 claims
- 0386US4086237AMethod of preparing 3-methyl pyridineDYNAMIT NOBEL AG·Filed 1976·Granted Apr 25, 1978·15 cites·9 claims
- 0479US4288607ABis-carbalkoxy compounds and their preparationDYNAMIT NOBEL AG·Filed 1979·Granted Sep 8, 1981·21 cites·6 claims
- 0575US4007223AMethod of preparing p-nitrobenzoic acidDYNAMIT NOBEL AG·Filed 1974·Granted Feb 8, 1977·9 cites·17 claims
- 0668US3974202AMethod of preparing arylacetic acid alkyl estersDYNAMIT NOBEL AG·Filed 1973·Granted Aug 10, 1976·7 cites·6 claims
- 0767US4152511ALinear or unsaturated polyesters prepared from bis-carbalkoxy compoundsDYNAMIT NOBEL AG·Filed 1976·Granted May 1, 1979·13 cites·29 claims
- 0866US4069265AStabilization of 1,1,1-trichloroethane with a four component systemDYNAMIT NOBEL AG·Filed 1976·Granted Jan 17, 1978·6 cites·5 claims
- 0964US4149008AHalogen-containing unsaturated bis-estersDYNAMIT NOBEL AG·Filed 1977·Granted Apr 10, 1979·9 cites·6 claims
- 1062US3959397AStabilization of 1,1,1-trichloroethane with a three component systemDYNAMIT NOBEL AG·Filed 1973·Granted May 25, 1976·5 cites·2 claims
- 1160US4212996AProcess for the side-chain chlorination of perhalogenated methyl aromatic compoundsDYNAMIT NOBEL AG·Filed 1978·Granted Jul 15, 1980·5 cites·21 claims
- 1260US4141915AMethod of preparing α-substituted cyanoacetic acid alkyl estersDYNAMIT NOBEL AG·Filed 1977·Granted Feb 27, 1979·5 cites·18 claims
- 1358US4224234AMethod for preparation of orthosilicic acid tetraalkyl estersDYNAMIT NOBEL AG·Filed 1979·Granted Sep 23, 1980·5 cites·6 claims
- 1458US4051140APreparation of pyridines and nicotinonitrile from piperidinesLUMMUS CO·Filed 1976·Granted Sep 27, 1977·10 cites·11 claims
- 1557US4424375AMethod and apparatus for performing carbonylation reactionsDYNAMIT NOBEL AG·Filed 1981·Granted Jan 3, 1984·5 cites·6 claims
- 1657US4080378AProcess for the preparation of carboxylic acid chlorides of the benzene seriesDYNAMIT NOBEL AG·Filed 1976·Granted Mar 21, 1978·4 cites·16 claims
- 1753US4284732AHalogen-containing unsaturated bis-esters and polymers and copolymers based on these estersDYNAMIT NOBEL AG·Filed 1979·Granted Aug 18, 1981·6 cites·9 claims
- 1852US4125561AProcess for production of terephthalic dialdehydeDYNAMIT NOBEL AG·Filed 1977·Granted Nov 14, 1978·3 cites·16 claims
- 1952US4104300AMethod of preparing carboxylic acid chlorides of the benzene seriesDYNAMIT NOBEL AG·Filed 1977·Granted Aug 1, 1978·3 cites·11 claims
- 2051US4156785AMethod of preparing α,β-unsaturated carboxylic acid estersDYNAMIT NOBEL AG·Filed 1975·Granted May 29, 1979·3 cites·12 claims
- 2150US4060690AMethod of preparing arylacetic acid alkyl estersDYNAMIT NOBEL AG·Filed 1976·Granted Nov 29, 1977·3 cites·6 claims
- 2245US4246188AArylsulfonic acid bromophenyl esters, their preparation, and their use as flameproofing agentsDYNAMIT NOBEL AG·Filed 1978·Granted Jan 20, 1981·3 cites·10 claims
- 2344US4056508ADifficultly inflammable polyester molding compositionsDYNAMIT NOBEL AG·Filed 1975·Granted Nov 1, 1977·4 cites·10 claims
- 2443US4116934AArylsulfonic acid bromophenyl esters, their preparation, and their use as flameproofing agentsDYNAMIT NOBEL AG·Filed 1977·Granted Sep 26, 1978·4 cites·23 claims
- 2543US3932535AProcess for the preparation of 2,2-bis-(4-hydroxy-3-chlorophenyl)-propaneDYNAMIT NOBEL AG·Filed 1974·Granted Jan 13, 1976·2 cites·15 claims
- 2636US4091017AMethod of preparing terephthalic acid dichloride and isophthalic acid dichlorideDYNAMIT NOBEL AG·Filed 1976·Granted May 23, 1978·4 cites·17 claims
- 2736US4057552AProduction of cyanopyridines from piperidinesLUMMUS CO·Filed 1976·Granted Nov 8, 1977·3 cites·6 claims
- 2836US4056454AProcess for the preparation of α,α,αα',α'-pentachloro-o-xyleneDYNAMIT NOBEL AG·Filed 1976·Granted Nov 1, 1977·1 cites·7 claims
- 2933US4147881ATetrabromoxylylene diacrylates and substituted acrylatesDYNAMIT NOBEL AG·Filed 1976·Granted Apr 3, 1979·1 cites·4 claims
- 3033US4078148APolyether estersDYNAMIT NOBEL AG·Filed 1973·Granted Mar 7, 1978·3 cites·18 claims
- 3129US4111902AHeptabromodibenzofuran, highly brominated dibenzofurans and the preparation and use thereof as flame retardantsDYNAMIT NOBEL AG·Filed 1976·Granted Sep 5, 1978·0 cites·14 claims
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