Inventor · disambiguated record
Horst Weigel
Also filed as: MULLER KARL · WEIGEL HORST
36 granted patents·200 citations·filing 1975–2006
97Inventor score
Top patents by PatentIndex Score
36 records- 0178US7670986B2Manganese dioxide catalyst for the hydrolysis of carbonitrilesDEGUSSA·Filed 2006·Granted Mar 2, 2010·4 cites·29 claims
- 0276US4127408AMethod for the continuous refinement of contaminated copper in the molten phaseKLOECKNER HUMBOLDT DEUTZ AG·Filed 1978·Granted Nov 28, 1978·17 cites·8 claims
- 0373US6797827B2Process for the preparation of alpha-amino acids by hydrolysis of hydantoins at elevated pressure and elevated temperatureDEGUSSA·Filed 2003·Granted Sep 28, 2004·6 cites·22 claims
- 0468US5672745AMethod for the continuous preparation of methionine or methionine derivativesDEGUSSA·Filed 1993·Granted Sep 30, 1997·10 cites·18 claims
- 0566US7485748B2Process for the production of 2-hydroxy-4-methythiobutyric acid ammonium saltDEGUSSA·Filed 2004·Granted Feb 3, 2009·3 cites·14 claims
- 0666US5969176AProcess for the production of trimethylhydroquinone diesters and of trimethylhydroquinoneDEGUSSA·Filed 1999·Granted Oct 19, 1999·9 cites·12 claims
- 0766US4362561AMethod for the smelting of material such as ore concentratesKLOECKNER HUMBOLDT DEUTZ AG·Filed 1980·Granted Dec 7, 1982·10 cites·7 claims
- 0864US4179284AMethod for direct recovery of metal from metal-bearing oresKLOECKNER HUMBOLDT DEUTZ AG·Filed 1977·Granted Dec 18, 1979·9 cites·8 claims
- 0963US6316661B1Process for the production of 2,3,5-trimethylhydroquinone diestersDEGUSSA·Filed 2000·Granted Nov 13, 2001·3 cites·10 claims
- 1063US4358311AMethod and apparatus for the smelting of material such as ore concentratesKLOECKNER HUMBOLDT DEUTZ AG·Filed 1981·Granted Nov 9, 1982·9 cites·10 claims
- 1163US4017307AThermal method for the recovery of metals and/or metal combinations with the aid of a melting cycloneKLOECKNER HUMBOLDT DEUTZ AG·Filed 1976·Granted Apr 12, 1977·12 cites·11 claims
- 1262US4388082ADevice for obtaining large amounts of combustible gas from carbonaceous materialsKLOECKNER HUMBOLDT DEUTZ AG·Filed 1981·Granted Jun 14, 1983·17 cites·4 claims
- 1360US6103924AProcess for the preparation of 2,3,5-trimethylhydroquinone diestersDEGUSSA·Filed 1999·Granted Aug 15, 2000·7 cites·21 claims
- 1458US6329535B1Process for preparing esterified chroman compoundsDEGUSSA·Filed 2000·Granted Dec 11, 2001·3 cites·21 claims
- 1557US6048988AProcess for the production of α-tocopherol estersDEGUSSA·Filed 1998·Granted Apr 11, 2000·6 cites·14 claims
- 1657US5049283AMethod for the recovery of aqueous solutions of free, neutral α-amino acids from aqueous solutions of their alkali-metal saltsDEGUSSA·Filed 1990·Granted Sep 17, 1991·6 cites·5 claims
- 1757US4469875AOptically active proline derivative, process for its production and useDEGUSSA·Filed 1982·Granted Sep 4, 1984·19 cites·17 claims
- 1854US6150563AAliphatic alkanals with improved storage stability and method of improving the storage stabilityDEGUSSA·Filed 1998·Granted Nov 21, 2000·6 cites·10 claims
- 1954US4562152AProcess for obtaining pure L-leucineDEGUSSA·Filed 1984·Granted Dec 31, 1985·4 cites·8 claims
- 2054US4511719ANα-(3-Cyanopropanoyl)-aminocarboxylic acid derivatives and their useDEGUSSA·Filed 1983·Granted Apr 16, 1985·3 cites·4 claims
- 2153US4223876AApparatus for direct recovery of metal from metal-bearing oresKLOECKNER HUMBOLDT WEDAG·Filed 1979·Granted Sep 23, 1980·5 cites·9 claims
- 2251US4322552AProcess for the production of 4-aminobutyramide hydrochlorideDEGUSSA·Filed 1980·Granted Mar 30, 1982·3 cites·16 claims
- 2347US4551548AProcess for the recovery of S-(carboxymethyl)-(R)-cysteine and S-(carboxymethyl)-(S)-cysteineDEGUSSA·Filed 1983·Granted Nov 5, 1985·5 cites·15 claims
- 2447US4254035AProcess for the production of 2-acetamidocinnamic acidDEGUSSA·Filed 1978·Granted Mar 3, 1981·2 cites·26 claims
- 2546US4292283AMethod for the recovery of zincKLOECKNER HUMBOLDT DEUTZ AG·Filed 1977·Granted Sep 29, 1981·7 cites·3 claims
- 2645US4376215AProcess for the production of 4-aminobutyramide hydrochlorideDEGUSSA·Filed 1981·Granted Mar 8, 1983·2 cites·17 claims
- 2745US4313894AProcess for the production of 3-cyanopropionamideDEGUSSA·Filed 1980·Granted Feb 2, 1982·2 cites·11 claims
- 2844US6552222B2Hydrolysis of acylamino acidsDEGUSSA·Filed 2001·Granted Apr 22, 2003·0 cites·20 claims
- 2944US4562153AProcess for the separation of L-leucine and L-isoleucineDEGUSSA·Filed 1984·Granted Dec 31, 1985·2 cites·8 claims
- 3042US4426532Aα-(3-Cyano-propanoyl)-aminocarboxylic acid derivativesDEGUSSA·Filed 1982·Granted Jan 17, 1984·1 cites·10 claims
- 3140US4236916AMethod for the continuous recovery of tin from iron rich concentratesKLOECKNER HUMBOLDT WEDAG·Filed 1978·Granted Dec 2, 1980·3 cites·16 claims
- 3238US4430509AProcess for the separation of the racemate (R,S)-cysteineDEGUSSA·Filed 1983·Granted Feb 7, 1984·2 cites·22 claims
- 3335US4283045AApparatus for the continuous recovery of tin from iron rich concentratesKLOECKNER HUMBOLDT DEUTZ AG·Filed 1980·Granted Aug 11, 1981·2 cites·6 claims
- 3431US4090024AProcess for the production of skatylhydantoinDEGUSSA·Filed 1977·Granted May 16, 1978·0 cites·9 claims
- 3523US4084057AProcess for the production of 4-acylamido-4, 4-dicarbalkoxy-butanalphenylhydrazoneDEGUSSA·Filed 1977·Granted Apr 11, 1978·0 cites·13 claims
- 3622US4049445AMethod for thermal treatment of nickel oreKLOECKNER HUMBOLDT DEUTZ AG·Filed 1975·Granted Sep 20, 1977·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →