Inventor · disambiguated record
Manfred Kaufhold
Also filed as: JACQUEMIN WERNER · KAUFHOLD MANFRED
45 granted patents·429 citations·filing 1974–2003
98Inventor score
Top patents by PatentIndex Score
45 records- 0191US4506105AProcess for preparing cyclooctene-4-ol-1 from cyclooctadiene-1,5HUELS CHEMISCHE WERKE AG·Filed 1983·Granted Mar 19, 1985·31 cites·16 claims
- 0289US4117251AMethod for preparing straight chain primary alcohols from 1-bromoalkanesHUELS CHEMISCHE WERKE AG·Filed 1977·Granted Sep 26, 1978·37 cites·8 claims
- 0387US5527969AProcess for preparing acetaldehyde diethyl acetalHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Jun 18, 1996·37 cites·8 claims
- 0487US4579992AProduction of 3,3- and 2,3-dimethylbutenes, 2,3-dimethylbutadiene and/or glycol or polyglycol N-alkyl-3,3- and -2,3-dimethylbutyl etherHUELS CHEMISCHE WERKE AG·Filed 1984·Granted Apr 1, 1986·34 cites·26 claims
- 0586US4433175AProcess for the production of pure neohexanolHUELS CHEMISCHE WERKE AG·Filed 1982·Granted Feb 21, 1984·20 cites·14 claims
- 0686US4250337ATwo stage hydrogenation to make neopentyl glycolHUELS CHEMISCHE WERKE AG·Filed 1979·Granted Feb 10, 1981·24 cites·6 claims
- 0784US5416215AProcess to preparing 2,2,6,6-tetra-methylpiperidine-n-oxyl and its 4-position substituted derivativesHUELS CHEMISCHE WERKE AG·Filed 1993·Granted May 16, 1995·28 cites·20 claims
- 0882US4385965AProcess for the recovery of pure methylal from methanol-methylal mixturesHUELS CHEMISCHE WERKE AG·Filed 1982·Granted May 31, 1983·16 cites·24 claims
- 0980US4772758AProcess for the production of technically pure, chlorine-free cyclohexadecadieneHUELS CHEMISCHE WERKE AG·Filed 1987·Granted Sep 20, 1988·15 cites·21 claims
- 1073US4250343AProcess for the preparation of pure α,ω-C6 - to C20 -aHUELS CHEMISCHE WERKE AG·Filed 1980·Granted Feb 10, 1981·10 cites·7 claims
- 1170US5576465AProcess for preparing unsaturated ethersHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Nov 19, 1996·11 cites·10 claims
- 1270US3968177AMethod for preparing straight-chain primary alcoholsHUELS CHEMISCHE WERKE AG·Filed 1974·Granted Jul 6, 1976·10 cites·8 claims
- 1368US5763627AProcess for preparing cyclopropyl alkyl ketones and 4,5-dihydroalkyfuransHUELS CHEMISCHE WERKE AG·Filed 1997·Granted Jun 9, 1998·10 cites·16 claims
- 1465US5888356AInhibition of polymerization of vinylaromatic or vinylaliphaticHUELS CHEMISCHE WERKE AG·Filed 1997·Granted Mar 30, 1999·37 cites·9 claims
- 1565US5629455AProcess for preparing cyclopropyl alkyl ketones and 4,5-dihydroalkylfuransHUELS CHEMISCHE WERKE AG·Filed 1996·Granted May 13, 1997·11 cites·7 claims
- 1664US4778920AProcess for the production of chlorine-free cyclopropanecarboxylic acid estersHUELS CHEMISCHE WERKE AG·Filed 1986·Granted Oct 18, 1988·7 cites·18 claims
- 1763US5371270AMethod of manufacturing chlorine-free cyclopropanecarboxylic acid methyl esterHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Dec 6, 1994·7 cites·20 claims
- 1860US6313356B1Process for the preparation of cyclooctanolDEGUSSA·Filed 2000·Granted Nov 6, 2001·5 cites·20 claims
- 1960US4320237AProcess for the hydroformylation of olefinsHUELS CHEMISCHE WERKE AG·Filed 1978·Granted Mar 16, 1982·14 cites·15 claims
- 2059US6002046AProcess for the preparation of cyclopropyl alkyl ketonesHUELS CHEMISCHE WERKE AG·Filed 1999·Granted Dec 14, 1999·7 cites·15 claims
- 2156US6423189B1Process for the preparation of 1,3-dichloropropaneDEGUSSA·Filed 2000·Granted Jul 23, 2002·1 cites·6 claims
- 2256US4506102A2-Methoxyethyl cyclododecenyl ether and processes for its preparation and conversion to 2-methoxyethyl cyclododecyl etherHUELS CHEMISCHE WERKE AG·Filed 1983·Granted Mar 19, 1985·5 cites·18 claims
- 2355US5902895AMethod for the continuous production of esters of thermally unstable acidsHUELS CHEMISCHE WERKE AG·Filed 1997·Granted May 11, 1999·5 cites·20 claims
- 2455US5728836AProcess for preparing 4-acylamino-2,2,6,6-tetramethylpiperidinesHUELS CHEMISCHE WERKE AG·Filed 1996·Granted Mar 17, 1998·5 cites·13 claims
- 2552US6166247AMethod for preparing cyclopropanecarboxylic acidsHUELS CHEMISCHE WERKE AG·Filed 1998·Granted Dec 26, 2000·4 cites·12 claims
- 2651US5288932AMethod for the production of substituted or unsubstituted chloromethyl cyclopropane and bromomethyl cyclopropaneHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Feb 22, 1994·4 cites·17 claims
- 2750US5008429AProcess for industrial application of Knoevenagel synthesisHUELS CHEMISCHE WERKE AG·Filed 1989·Granted Apr 16, 1991·3 cites·7 claims
- 2849US7038072B2Process for monoalkylation of C-H acidic methylene groupsDEGUSSA·Filed 2003·Granted May 2, 2006·1 cites·7 claims
- 2949US6288264B1Process for preparing cyanoacetamideDEGUSSA·Filed 2001·Granted Sep 11, 2001·1 cites·17 claims
- 3049US4755615AProcess for the production of cyclododecenylacetonitrileHUELS CHEMISCHE WERKE AG·Filed 1985·Granted Jul 5, 1988·4 cites·12 claims
- 3149US4642405AProcess for the production of methallylbenzene and isobutenylbenzene and their p-substituted alkyl derivativesHUELS CHEMISCHE WERKE AG·Filed 1986·Granted Feb 10, 1987·3 cites·25 claims
- 3247US6077956AProcess for preparing 1,2,3,6-tetrahydro-2,2,6,6-tetramethylpyridineHUELS CHEMISCHE WERKE AG·Filed 1998·Granted Jun 20, 2000·3 cites·14 claims
- 3344US4944848AProcess for the purification of 1,1-diphenylethane with good fragrance qualityHUELS CHEMISCHE WERKE AG·Filed 1989·Granted Jul 31, 1990·2 cites·13 claims
- 3444US4061687AOxo process with recovery of cobalt hydrocarbonyl in solution for recycleHUELS CHEMISCHE WERKE AG·Filed 1975·Granted Dec 6, 1977·4 cites·9 claims
- 3542US4231915AUse of di-(cyclohexylethylmethylol) phthalates or di-(ethylcyclohexylmethylol) phthalates as plasticizers for polyvinyl chlorideHUELS CHEMISCHE WERKE AG·Filed 1979·Granted Nov 4, 1980·5 cites·12 claims
- 3640US6482971B2Process for the preparation of 3-alkoxyacrylonitrileDEGUSSA·Filed 2001·Granted Nov 19, 2002·0 cites·18 claims
- 3740US4851552AProcess for the production of 13-oxabicyclo(10.3.0)pentadecane and process for the production of intermediatesHUELS CHEMISCHE WERKE AG·Filed 1985·Granted Jul 25, 1989·1 cites·18 claims
- 3839US6452016B1Process for the preparation of 1,2,3,6-tetrahydro-2,2,6,6-tetramethylpyridine N-oxideDEGUSSA·Filed 1998·Granted Sep 17, 2002·1 cites·15 claims
- 3939US4990682AProcess for the preparation of 5-chloro-2-pentanoneHUELS CHEMISCHE WERKE AG·Filed 1989·Granted Feb 5, 1991·1 cites·6 claims
- 4039US4785100AProcess for the production of N-substituted morpholine and piperidine derivativesHUELS CHEMISCHE WERKE AG·Filed 1987·Granted Nov 15, 1988·1 cites·15 claims
- 4138US6107522AProcess for the preparation of cyclopropylamineDEGUSSA·Filed 1999·Granted Aug 22, 2000·1 cites·13 claims
- 4237US5412146AProcess for the preparation of 2-cyanoacetoxypropionic estersHUELS CHEMISCHE WERKE AG·Filed 1994·Granted May 2, 1995·1 cites·14 claims
- 4332US6730804B1Process for preparing cyclopropanecarboxylates of lower alcoholsDEGUSSA·Filed 1998·Granted May 4, 2004·0 cites·19 claims
- 4432US5118834AProcess for the preparation of butyl 2-phenylcyclopropanecarboxylatesHUELS CHEMISCHE WERKE AG·Filed 1991·Granted Jun 2, 1992·0 cites·5 claims
- 4530US4722808AUse of cyclododecenylacetonitrile as a fragrance componentHUELS CHEMISCHE WERKE AG·Filed 1986·Granted Feb 2, 1988·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →