Assignee
SIEGFRIED AG
CH·43 granted patents·3 pending applications·375 citations·filing 1973–2025
Top patents by PatentIndex Score
46 records- 0192US4153803ACholesterol-lowering phenoxyalkanoic acid estersSIEGFRIED AG·Filed 1977·Granted May 8, 1979·31 cites·5 claims
- 0292US4133903AProcess for preparing bitter beveragesSIEGFRIED AG·Filed 1976·Granted Jan 9, 1979·84 cites·20 claims
- 0390US4177350AImidazole ethyl oxyalkoxy derivatives and thio analogues thereofSIEGFRIED AG·Filed 1978·Granted Dec 4, 1979·21 cites·8 claims
- 0482US4210656AImidazolyl vinyl ethers and process for preparing sameSIEGFRIED AG·Filed 1978·Granted Jul 1, 1980·12 cites·8 claims
- 0581US4223143AQuinazoline derivativesSIEGFRIED AG·Filed 1978·Granted Sep 16, 1980·14 cites·7 claims
- 0680US4182902ANovel cholesterol-lowering compoundsSIEGFRIED AG·Filed 1978·Granted Jan 8, 1980·14 cites·1 claims
- 0778US4204998AN-Amino indole derivatives having pharmacological activitySIEGFRIED AG·Filed 1978·Granted May 27, 1980·10 cites·8 claims
- 0877US4124767AImidazolyl-oxime ethers having anti-mycotic and bactericidal activitySIEGFRIED AG·Filed 1976·Granted Nov 7, 1978·17 cites·14 claims
- 0973US4689233ACoronary therapeutic agent in the form of soft gelatin capsulesSIEGFRIED AG·Filed 1986·Granted Aug 25, 1987·70 cites·6 claims
- 1069US4668786AP-fluorobenzoyl-piperidino alkyl theophylline derivativesSIEGFRIED AG·Filed 1985·Granted May 26, 1987·13 cites·6 claims
- 1169US4275068ALipid lowering alkylene glycols and ester derivatives thereofSIEGFRIED AG·Filed 1979·Granted Jun 23, 1981·6 cites·19 claims
- 1268US10034883B2Mesoporous dosage forms for poorly soluble drugsSIEGFRIED AG·Filed 2014·Granted Jul 31, 2018·1 cites·12 claims
- 1368US9657029B2Method of preparing oxymorphoneSIEGFRIED AG·Filed 2013·Granted May 23, 2017·1 cites·16 claims
- 1468US4352931ALin-benzoaminopurinolsSIEGFRIED AG·Filed 1980·Granted Oct 5, 1982·15 cites·1 claims
- 1565US4436913A1H- and 2H- indazole derivativesSIEGFRIED AG·Filed 1980·Granted Mar 13, 1984·6 cites·17 claims
- 1664US4210657AAryl imidazolyl vinyl ethers and processes for using sameSIEGFRIED AG·Filed 1978·Granted Jul 1, 1980·8 cites·9 claims
- 1763US3947584ANovel indolyl alkyl amines, method of producing same, and their use as anorectic agentsSIEGFRIED AG·Filed 1973·Granted Mar 30, 1976·5 cites·1 claims
- 1862US4603204ATheophylline derivativesSIEGFRIED AG·Filed 1983·Granted Jul 29, 1986·7 cites·3 claims
- 1959US2024208966A1Process for the synthesis of 1,3-dihydro-imidazo[4,5-b]pyridin-2-one and/or derivatives thereofSIEGFRIED AG·Filed 2022·Application pending·0 cites
- 2056US4483999APhenoxy alkanoic acid derivatives having the ability to lower the level of fatty substances in the bloodSIEGFRIED AG·Filed 1977·Granted Nov 20, 1984·4 cites·5 claims
- 2156US4214095AChlorobenzyl phenoxy alkoxylatesSIEGFRIED AG·Filed 1979·Granted Jul 22, 1980·5 cites·6 claims
- 2256US2025163020A1Chiral Synthesis of Nornicotine and NicotineSIEGFRIED AG·Filed 2025·Application pending·0 cites
- 2353US4305942AXanthine oxidase inhibitor and therapeutic treatment using sameSIEGFRIED AG·Filed 1980·Granted Dec 15, 1981·5 cites·9 claims
- 2451US4330545AHeterocyclic imidazolyl vinyl ethers and use of same as fungicides or bactericidesSIEGFRIED AG·Filed 1980·Granted May 18, 1982·4 cites·10 claims
- 2548US10010510B2Oral pharmaceutical formulationSIEGFRIED AG·Filed 2014·Granted Jul 3, 2018·0 cites·16 claims
- 2647US4503237AMethod for the production of acemetacinSIEGFRIED AG·Filed 1982·Granted Mar 5, 1985·2 cites·1 claims
- 2746US4554356AMethod for production of imidazolyl vinyl ethersSIEGFRIED AG·Filed 1982·Granted Nov 19, 1985·2 cites·17 claims
- 2846US4550175AProcess for the stereospecific preparation of (Z)-1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-0-(2,4-dichlorobenzyl)-ethanone oxime etherSIEGFRIED AG·Filed 1984·Granted Oct 29, 1985·3 cites·3 claims
- 2945US11104630B2Synthesis of mono-chlorinated acetophenoneSIEGFRIED AG·Filed 2018·Granted Aug 31, 2021·0 cites·19 claims
- 3045US4474956AProcess for the preparation of 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxideSIEGFRIED AG·Filed 1983·Granted Oct 2, 1984·2 cites·10 claims
- 3144US11279685B2Enantiomeric separation of racemic nicotine by addition of an O,O″-disubstituted tartaric acid enantiomerSIEGFRIED AG·Filed 2018·Granted Mar 22, 2022·0 cites·14 claims
- 3243US4531965AWeed control method and compositionSIEGFRIED AG·Filed 1982·Granted Jul 30, 1985·2 cites·5 claims
- 3343US4440561ADefoliant composition and methodSIEGFRIED AG·Filed 1982·Granted Apr 3, 1984·2 cites·9 claims
- 3442US4131608AThioethersSIEGFRIED AG·Filed 1977·Granted Dec 26, 1978·2 cites·1 claims
- 3541US10927122B2Synthesis of noroxymorphoneSIEGFRIED AG·Filed 2018·Granted Feb 23, 2021·0 cites·5 claims
- 3641US4115393APyridyl alkyl esters of substituted phenoxy alkanoic acids having the ability to reduce the level of fatty substances in the bloodSIEGFRIED AG·Filed 1977·Granted Sep 19, 1978·1 cites·8 claims
- 3740US4463195AProcess for producing o-nitrobenzaldehydeSIEGFRIED AG·Filed 1983·Granted Jul 31, 1984·3 cites·12 claims
- 3839US11407730B2Preparation of racemic nicotine by reaction of ethyl nicotinate with N-vinylpyrrolidone in the presence of an alcoholate base and subsequent process stepsSIEGFRIED AG·Filed 2018·Granted Aug 9, 2022·0 cites·17 claims
- 3939US2015183727A1Method for the preparation of 1-aryl-1-alkyl-2-alkyl-3-dialkylaminopropane compoundsSIEGFRIED AG·Filed 2013·Application pending·0 cites
- 4038US9546177B2Synthesis of noroxymorphone from morphineSIEGFRIED AG·Filed 2014·Granted Jan 17, 2017·0 cites·20 claims
- 4137US10035807B2Method of manufacturing stereoisomers of buprenorphine and analogues thereofSIEGFRIED AG·Filed 2016·Granted Jul 31, 2018·0 cites·15 claims
- 4235US4443612AProcess for the stereospecific preparation of imidazolyl oximesSIEGFRIED AG·Filed 1982·Granted Apr 17, 1984·1 cites·1 claims
- 4332US4652659AMethod for the production of acemetacinSIEGFRIED AG·Filed 1984·Granted Mar 24, 1987·0 cites·5 claims
- 4430US4211551AHerbicideSIEGFRIED AG·Filed 1977·Granted Jul 8, 1980·0 cites·1 claims
- 4527US10391091B2Method of manufacturing buprenorphine and analogues thereof from oripavineSIEGFRIED AG·Filed 2015·Granted Aug 27, 2019·0 cites·12 claims
- 4619US4229367APreparation of trans-4-alkyl-cyanoarylcyclohexanesSIEGFRIED AG·Filed 1979·Granted Oct 21, 1980·2 cites·10 claims
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