Inventor · disambiguated record
Herbert Klenk
Also filed as: KLENK HERBERT
30 granted patents·453 citations·filing 1977–1998
97Inventor score
Top patents by PatentIndex Score
30 records- 0197US5387720AProcess for the production of acroleinDEGUSSA·Filed 1993·Granted Feb 7, 1995·178 cites·20 claims
- 0294US5426249AProcess for the simultaneous production of 1,2- and 1,3-propanediolDEGUSSA·Filed 1993·Granted Jun 20, 1995·69 cites·14 claims
- 0391US4914208AOptically active salts of a substituted thiazolidine-4-carboxylate and 3-chloro-2-hydroxypropyltrimethyl ammonium, their preparation and useDEGUSSA·Filed 1988·Granted Apr 3, 1990·33 cites·3 claims
- 0488US4824987AMethod of preparing m-trifluoromethylphenyl acetonitrileDEGUSSA·Filed 1988·Granted Apr 25, 1989·25 cites·4 claims
- 0587US5455264ARS-thioctic acid with novel morphologyASTA MEDICA AG·Filed 1993·Granted Oct 3, 1995·36 cites·6 claims
- 0686US4175188AProcess for the production of 1,2,4-triazin-5-one derivativesDEGUSSA·Filed 1978·Granted Nov 20, 1979·14 cites·34 claims
- 0783US4341709APreparation of ε-caprolactoneBAYER AG·Filed 1980·Granted Jul 27, 1982·15 cites·20 claims
- 0878US4360682AStabilizing caprolactones with dihydroxybenzenesDEGUSSA·Filed 1980·Granted Nov 23, 1982·10 cites·9 claims
- 0976US4313879AProcess for the manufacture of very pure ε-caprolactoneDEGUSSA·Filed 1980·Granted Feb 2, 1982·10 cites·9 claims
- 1076US4108875AProcess for the production of acyl cyanides (B)DEGUSSA·Filed 1977·Granted Aug 22, 1978·8 cites·30 claims
- 1168US4228082AN-Substituted α-ketocarboxylic acid amidesDEGUSSA·Filed 1979·Granted Oct 14, 1980·4 cites·12 claims
- 1266US4108877AProcess for the production of acyl cyanides (A)DEGUSSA·Filed 1977·Granted Aug 22, 1978·5 cites·22 claims
- 1363US4490307AProcess for the production of β-mercaptopropionic acid derivativesDEGUSSA·Filed 1983·Granted Dec 25, 1984·6 cites·22 claims
- 1462US5166426AProcess for producing l-carnitine from d,l-carnitine nitrile saltsDEGUSSA·Filed 1992·Granted Nov 24, 1992·7 cites·16 claims
- 1562US4113773AProcess for the production of benzoyl cyanide (I)DEGUSSA·Filed 1977·Granted Sep 12, 1978·5 cites·22 claims
- 1658US4117008AProcess for the production of benzoyl cyanide (ii)DEGUSSA·Filed 1977·Granted Sep 26, 1978·4 cites·19 claims
- 1757US5049283AMethod 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
- 1857US4144269AProcess for the production of benzoyl cyanide (IV)DEGUSSA·Filed 1977·Granted Mar 13, 1979·4 cites·28 claims
- 1954US4224226AProcess for the production of N-substituted α-ketocarboxylic acid amidesDEGUSSA·Filed 1978·Granted Sep 23, 1980·2 cites·16 claims
- 2052US4209461AProcess for the production of benzoyl cyanide (I)DEGUSSA·Filed 1978·Granted Jun 24, 1980·3 cites·25 claims
- 2149US4492793AProcess for the production of 2-amino-5-mercapto-1,3,4-thiadiazoleDEGUSSA·Filed 1982·Granted Jan 8, 1985·2 cites·21 claims
- 2246US4161491AProcess for the production of alpha-ketocarboxylic acid amides and cycloaliphatic productsDEGUSSA·Filed 1977·Granted Jul 17, 1979·2 cites·32 claims
- 2342US4122116ASubstituted cyclopropyl glyoxylnitrilesDEGUSSA·Filed 1978·Granted Oct 24, 1978·1 cites·6 claims
- 2439US4402733AHerbicidally active 1,2,4-triazin-5-one derivativesCIBA GEIGY CORP·Filed 1981·Granted Sep 6, 1983·1 cites·6 claims
- 2539US4339591AProcess for the production of caboxylic acid cyanidesDEGUSSA·Filed 1981·Granted Jul 13, 1982·1 cites·26 claims
- 2637US5760268AProduction and use of salts of 6, 8-bis (amidiniumthio) -octanoic acidASTA MEDICA AG·Filed 1997·Granted Jun 2, 1998·1 cites·4 claims
- 2735US4716247AProcess for the production of thiosemicarbazideDEGUSSA·Filed 1983·Granted Dec 29, 1987·0 cites·13 claims
- 2833US6013815AProduction and use of salts of 6,8-bis (amidiniumthio)-octanoic acidASTA MEDICA AG·Filed 1998·Granted Jan 11, 2000·0 cites·1 claims
- 2933US4326056AProcess for the production of 4-amino-6-tert. butyl-3-mercapto-1,2,4-triazin-5-oneDEGUSSA·Filed 1981·Granted Apr 20, 1982·1 cites·6 claims
- 3032US5191085AOptically active salts of a substituted thiazolidine-4-carboxylate and 3-cyano-hydroxypropyl trimethyl-ammonium, their production and usesDEGUSSA·Filed 1991·Granted Mar 2, 1993·0 cites·7 claims
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