Inventor · disambiguated record
Dietmar Bielefeldt
Also filed as: BIELEFELDT DIETMAR
46 granted patents·1 pending application·520 citations·filing 1987–2017
98Inventor score
Top patents by PatentIndex Score
47 records- 0194US5171901AProcess for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropaneBAYER AG·Filed 1991·Granted Dec 15, 1992·51 cites·6 claims
- 0293US5463150AProcess for preparing hexafluorobuteneBAYER AG·Filed 1994·Granted Oct 31, 1995·44 cites·8 claims
- 0392US5496866AC3 to C5 polyfluoroalkanes propellantsBAYER AG·Filed 1990·Granted Mar 5, 1996·56 cites·22 claims
- 0491US4902839AProcess for preparing fluorinated C4 to C6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systemsBAYER AG·Filed 1988·Granted Feb 20, 1990·26 cites·10 claims
- 0587US6414192B1Process for preparing 4-aminodiphenylamineBAYER AG·Filed 2001·Granted Jul 2, 2002·19 cites·5 claims
- 0686US4954666AProcess for preparing fluorinated C4 to C6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systemsBAYER AG·Filed 1989·Granted Sep 4, 1990·17 cites·3 claims
- 0784US5072030AProcess for the fluorination of acrylic acid and derivatives thereof and novel fluorinated esters of 2,3-difluoropropionic acidBAYER AG·Filed 1990·Granted Dec 10, 1991·23 cites·7 claims
- 0883US5315047AProcess for the preparation of hexafluorobutane, and intermediates thereby obtainableBAYER AG·Filed 1993·Granted May 24, 1994·20 cites·4 claims
- 0978US5087775AProcess for the preparation of partially fluorinated alcoholsBAYER AG·Filed 1990·Granted Feb 11, 1992·16 cites·8 claims
- 1078US4820847AProcess for the preparation of 4-substituted 1-aryl-5-amino-pyrazolesBAYER AG·Filed 1987·Granted Apr 11, 1989·13 cites·9 claims
- 1174US5210340APreparation of polyfluorobutenesBAYER AG·Filed 1992·Granted May 11, 1993·12 cites·6 claims
- 1274US4931482AUse of 1,1,1,4,4,4-hexaefluorobutane as a blowing and insulating gas for the production of foam plasticsBAYER AG·Filed 1989·Granted Jun 5, 1990·34 cites·8 claims
- 1373US5672787AProcess for preparing 1,1,1,4,4,4-hexafluorobutane in the liquid phaseBAYER AG·Filed 1996·Granted Sep 30, 1997·13 cites·8 claims
- 1473US5455376AProcess for the preparation of aliphatic omega-difluorocarboxyl compoundsBAYER AG·Filed 1994·Granted Oct 3, 1995·12 cites·10 claims
- 1572US10807955B2Process for the preparation of a 2-pyridylethylcarboxamide derivativeBAYER CROPSCIENCE AG·Filed 2017·Granted Oct 20, 2020·1 cites·15 claims
- 1670US6265430B13-thiocarbamoylpyrazole derivatives as pesticidesBAYER AG·Filed 1997·Granted Jul 24, 2001·14 cites·14 claims
- 1770US5059711AProcess for the preparation of trifluoromethanesulphonic acidBAYER AG·Filed 1988·Granted Oct 22, 1991·9 cites·8 claims
- 1869US6054473A1,3-dimethyl-5-fluoro-pyrazole-4-carboxamide derivatives, their preparation and their use as microbicidesBAYER AG·Filed 1997·Granted Apr 25, 2000·13 cites·4 claims
- 1968US6107336ADihydrofuran carboxamidesBAYER AG·Filed 1997·Granted Aug 22, 2000·12 cites·5 claims
- 2064US5087747AProcess for the preparation of trifluoromethanesulphenyl chlorideBAYER AG·Filed 1990·Granted Feb 11, 1992·8 cites·2 claims
- 2163US5646196AC3 to C5 polyfluorcalkanes propellantsBAYER AG·Filed 1996·Granted Jul 8, 1997·14 cites·2 claims
- 2263US5146019APreparation of polyfluorobutenesBAYER AG·Filed 1992·Granted Sep 8, 1992·7 cites·10 claims
- 2362US5283378AProcess for the dechlorination and/or debromination of fluorine-and chlorine- and/or bromine-containing aromatic compoundsBAYER AG·Filed 1992·Granted Feb 1, 1994·7 cites·5 claims
- 2461US5523497AProcess for preparing hexafluorochlorobutenesBAYER AG·Filed 1993·Granted Jun 4, 1996·6 cites·7 claims
- 2560US5306849AProcess for the preparation of halogenated aromaticsBAYER AG·Filed 1993·Granted Apr 26, 1994·6 cites·13 claims
- 2658US6153761ASulphonylaminocarbonyltriazolinones having halogenoalkylthio substituentsBAYER AG·Filed 1999·Granted Nov 28, 2000·7 cites·1 claims
- 2756US4970337AProcess for the preparation of trifluoromethanesulphonyl chlorideBAYER AG·Filed 1988·Granted Nov 13, 1990·4 cites·15 claims
- 2854US5994273AHerbicidal or fungicidal sulphonylaminocarbonyltriazolinones with halogenated alk(en)ylthio substituentsBAYER AKTIWNGESELLSCHAFT·Filed 1996·Granted Nov 30, 1999·6 cites·3 claims
- 2953US5496867AC3 to C5 polyfluoroalkanes propellantsBAYER AG·Filed 1992·Granted Mar 5, 1996·8 cites·2 claims
- 3050US5969197AProcess for the preparation of chloro-fluoro-butenesBAYER AG·Filed 1994·Granted Oct 19, 1999·8 cites·5 claims
- 3148US5536890AProcess for preparing hexafluorobutaneBAYER AG·Filed 1993·Granted Jul 16, 1996·3 cites·6 claims
- 3245US5354884AOptically active N-α-fluoroacryloylamino acid derivatives for the resolution of racematesBAYER AG·Filed 1992·Granted Oct 11, 1994·7 cites·5 claims
- 3345US5276218APreparation of β-fluoroalcoholsBAYER AG·Filed 1991·Granted Jan 4, 1994·5 cites·8 claims
- 3443US5530169AProcess for the preparation of saturated, fluorine-containing and chlorine-free hydrocarbonsBAYER AG·Filed 1994·Granted Jun 25, 1996·2 cites·6 claims
- 3543US5093522ACarboxylic acid halides containing trifluoromethyl groups and a process for their preparationBAYER AG·Filed 1990·Granted Mar 3, 1992·2 cites·6 claims
- 3642US4973583APesticidal O-halogenocyclobutyl S-alkyl (di)thiphosph)(on)atesBAYER AG·Filed 1989·Granted Nov 27, 1990·2 cites·13 claims
- 3741US5223643AProcess for the preparation of 1,1-difluoroalkanesulphenyl chloridesBAYER AG·Filed 1991·Granted Jun 29, 1993·2 cites·10 claims
- 3840US6028200AProcess for preparing 2-chloro-benzimidazole derivativesBAYER AG·Filed 1999·Granted Feb 22, 2000·1 cites·2 claims
- 3940US5624970AC3 to C5 polyfluorcalkanes propellantsBAYER AG·Filed 1996·Granted Apr 29, 1997·4 cites·2 claims
- 4040US2006014864A1Thermoplastic materials that are stabilised with polmeric phosphite estersBRAIG THOMAS·Filed 2003·Application pending·0 cites
- 4139US5292924AOptically active N-α-fluoroacryloylamino acid polymers for the resolution of racematesBAYER AG·Filed 1992·Granted Mar 8, 1994·5 cites·9 claims
- 4235US6613948B1Process for the preparation of 2,3,4,5-tetrafluorobenzene derivativesBAYER AG·Filed 1998·Granted Sep 2, 2003·1 cites·9 claims
- 4334US6054589AProcess for preparing 2-chloro-benzimidazole derivativesBAYER AG·Filed 1998·Granted Apr 25, 2000·0 cites·7 claims
- 4433US6075160A4-cyano-2,5-difluoroaniline preparation processBAYER AG·Filed 1996·Granted Jun 13, 2000·0 cites·3 claims
- 4533US5145961AProcess for the preparation of 5-fluoropyrimidinesBAYER AG·Filed 1992·Granted Sep 8, 1992·0 cites·8 claims
- 4632US5166144AO-halogenocyclobutyl s-alkyl (di)thiophosphoric acid ester-amides and their use as agents for combating pestsBAYER AG·Filed 1992·Granted Nov 24, 1992·0 cites·8 claims
- 4732US4962104AFungicidal substituted 2-phenyl-2,2-difluoroethylthiolcarbonates, compositions and useBAYER AG·Filed 1989·Granted Oct 9, 1990·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →