SIEGFRIED AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07D HETEROCYCLIC COMPOUNDS 7155
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 3252

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9657029 Method of preparing oxymorphoneJun 11, 13May 23, 17[C07D]
9546177 Synthesis of noroxymorphone from morphineJul 22, 14Jan 17, 17[C07D]
8921557 Preparation of low impurity opiates in a continuous flow reactorMar 21, 11Dec 30, 14[C07D]
8158793 Demethylation of 14-hydroxy substituted alkaloid derivativesNov 24, 08Apr 17, 12[C07F, C07D]
7619088 Demethylation of 14-hydroxy substituted alkaloid derivativesOct 29, 08Nov 17, 09[C07F, C07D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4689233 Coronary therapeutic agent in the form of soft gelatin capsulesExpiredJan 06, 86Aug 25, 87[A61K]
4668786 P-fluorobenzoyl-piperidino alkyl theophylline derivativesExpiredDec 26, 85May 26, 87[A61K, C07D]
4652659 Method for the production of acemetacinExpiredOct 16, 84Mar 24, 87[C07D]
4603204 Theophylline derivativesExpiredMar 11, 83Jul 29, 86[A61K, C07D]
4554356 Method for production of imidazolyl vinyl ethersExpiredJan 16, 85Nov 19, 85[C07D]
4550175 Process for the stereospecific preparation of (Z)-1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-0-(2,4-dichlorobenzyl)-ethanone oxime etherExpiredMar 15, 84Oct 29, 85[C07D]
4531965 Weed control method and compositionExpiredNov 22, 82Jul 30, 85[A01N]
4526898 Antihypertensive 4-(2-imidazolin-2-yl-amino)-2-methyl-indazoleExpiredSep 07, 83Jul 02, 85[A61K, C07D]
4503237 Method for the production of acemetacinExpiredDec 16, 82Mar 05, 85[C07D]
4483999 Phenoxy alkanoic acid derivatives having the ability to lower the level of fatty substances in the bloodExpiredMar 01, 77Nov 20, 84[C07C]
4474956 Process for the preparation of 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxideExpiredJun 29, 83Oct 02, 84[C07D]
4463195 Process for producing o-nitrobenzaldehydeExpiredApr 14, 83Jul 31, 84[C07C]
4443612 Process for the stereospecific preparation of imidazolyl oximesExpiredAug 30, 82Apr 17, 84[C07D]
4440561 Defoliant composition and methodExpiredFeb 03, 82Apr 03, 84[A01N]
4436913 1H- and 2H- indazole derivativesExpiredApr 28, 82Mar 13, 84[C07D]
4352931 Lin-benzoaminopurinolsExpiredMay 22, 80Oct 05, 82[C07D]
4330545 Heterocyclic imidazolyl vinyl ethers and use of same as fungicides or bactericidesExpiredMay 19, 80May 18, 82[A01N, C07D]
4305942 Xanthine oxidase inhibitor and therapeutic treatment using sameExpiredOct 28, 80Dec 15, 81[A61K]
4275068 Lipid lowering alkylene glycols and ester derivatives thereofExpiredApr 23, 79Jun 23, 81[A61K, C07D, C07C]
4229367 Preparation of trans-4-alkyl-cyanoarylcyclohexanesExpiredMay 15, 79Oct 21, 80[C07C]

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