SIEGFRIED LTD

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4800 ZOFINGEN, CH

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of racemic nicotine by reaction of ethyl nicotinate wit...
- Patent number 11,407,730
- Issue date Aug 9, 2022
- Siegfried AG
- Beat Theodor Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Enantiomeric separation of racemic nicotine by addition of an O,O″-...
- Patent number 11,279,685
- Issue date Mar 22, 2022
- Siegfried AG
- Beat Theodor Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of mono-chlorinated acetophenone
- Patent number 11,104,630
- Issue date Aug 31, 2021
- Siegfried AG
- Silvia Ott-Dombrowski
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of racemic nicotine by reaction of ethyl nicotinate wit...
- Patent number 11,091,458
- Issue date Aug 17, 2021
- Siegfried AG
- Beat Theodor Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of noroxymorphone
- Patent number 10,927,122
- Issue date Feb 23, 2021
- Siegfried AG
- Ernesto Santandrea
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nicotine-containing granulate
- Patent number 10,413,512
- Issue date Sep 17, 2019
- Siegfried Ltd.
- Tillmann Roehrich
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of manufacturing buprenorphine and analogues thereof from or...
- Patent number 10,391,091
- Issue date Aug 27, 2019
- Siegfried AG
- Beat Theodor Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing stereoisomers of buprenorphine and analogue...
- Patent number 10,035,807
- Issue date Jul 31, 2018
- Siegfried AG
- Stefan Sahli
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mesoporous dosage forms for poorly soluble drugs
- Patent number 10,034,883
- Issue date Jul 31, 2018
- Siegfried AG
- Pascal Prinderre
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Oral pharmaceutical formulation
- Patent number 10,010,510
- Issue date Jul 3, 2018
- Siegfried AG
- Pascal Christian Prinderre
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for the preparation of beta-substituted gamma-amino carboxyl...
- Patent number 9,745,249
- Issue date Aug 29, 2017
- Siegfried Ltd.
- Yoshikazu Suzuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nicotine-containing product
- Patent number 9,585,967
- Issue date Mar 7, 2017
- Siegfried Ltd.
- Alexander Franz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Kit comprising a packaging material and a solid pharmaceutical or n...
- Patent number 9,414,988
- Issue date Aug 16, 2016
- Siegfried Ltd.
- Peter Demel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of low impurity opiates in a continuous flow reactor
- Patent number 8,921,557
- Issue date Dec 30, 2014
- Siegfried AG
- Beat Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Demethylation of 14-hydroxy substituted alkaloid derivatives
- Patent number 8,158,793
- Issue date Apr 17, 2012
- Siegfried Ltd.
- Erik Heinz Lauterbach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of quaternary N-alkyl morphin or morphi...
- Patent number 8,101,756
- Issue date Jan 24, 2012
- Siegfried Ltd.
- Martin Eipert
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for introducing a 1,2-double bond into 3-oxo-4-azasteroid co...
- Patent number 7,872,135
- Issue date Jan 18, 2011
- Siegfried Ltd.
- Norber Schärer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Demethylation of 14-hydroxy substituted alkaloid derivatives
- Patent number 7,619,088
- Issue date Nov 17, 2009
- Siegfried Ltd.
- Erik Heinz Lauterbach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Coronary therapeutic agent in the form of soft gelatin capsules
- Patent number 4,689,233
- Issue date Aug 25, 1987
- Siegfried Aktiengesellschaft
- Stephan Dvorsky
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
P-fluorobenzoyl-piperidino alkyl theophylline derivatives
- Patent number 4,668,786
- Issue date May 26, 1987
- Siegfried Aktiengesellschaft
- Kurt Thiele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the production of acemetacin
- Patent number 4,652,659
- Issue date Mar 24, 1987
- Siegfried Aktiengesellschaft
- Rene Gnehm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Theophylline derivatives
- Patent number 4,603,204
- Issue date Jul 29, 1986
- Siegfried Aktiengesellschaft
- Kurt Thiele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of imidazolyl vinyl ethers
- Patent number 4,554,356
- Issue date Nov 19, 1985
- Siegfried Aktiengesellschaft
- Ludwig Zirngibl
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the stereospecific preparation of (Z)-1-(2,4-dichloroph...
- Patent number 4,550,175
- Issue date Oct 29, 1985
- Siegfried Aktiengesellschaft
- Georg Mixich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Weed control method and composition
- Patent number 4,531,965
- Issue date Jul 30, 1985
- Siegfried Aktiengesellschaft
- Jacques Meyer
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method for the production of acemetacin
- Patent number 4,503,237
- Issue date Mar 5, 1985
- Siegfried Aktiengesellschaft
- Ren/e/ Gnehm
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phenoxy alkanoic acid derivatives having the ability to lower the l...
- Patent number 4,483,999
- Issue date Nov 20, 1984
- Siegfried Aktiengesellschaft
- Kurt Thiele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,...
- Patent number 4,474,956
- Issue date Oct 2, 1984
- Siegfried Aktiengesellschaft
- Ludwig Zirngibl
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing o-nitrobenzaldehyde
- Patent number 4,463,195
- Issue date Jul 31, 1984
- Siegfried Aktiengesellschaft
- Hans-Rudolf Marti
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the stereospecific preparation of imidazolyl oximes
- Patent number 4,443,612
- Issue date Apr 17, 1984
- Siegfried Aktiengesellschaft
- Georg Mixich
- C07 - ORGANIC CHEMISTRY

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Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR THE SYNTHESIS OF 1,3-DIHYDRO-IMIDAZO[4,5-B]PYRIDIN-2-ON...
- Publication number 20240208966
- Publication date Jun 27, 2024
- Siegfried AG
- Beat Theodor Weber
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYNTHESIS OF NOROXYMORPHONE
- Publication number 20200385397
- Publication date Dec 10, 2020
- Siegfried AG
- Ernesto SANTANDREA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PREPARATION OF RACEMIC NICOTINE BY REACTION OF ETHYL NICOTINATE WIT...
- Publication number 20200331884
- Publication date Oct 22, 2020
- Siegfried AG
- Beat Theodor Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ENANTIOMERIC SEPARATION OF RACEMIC NICOTINE BY ADDITION OF AN O,O'-...
- Publication number 20200331883
- Publication date Oct 22, 2020
- Siegfried AG
- Beat Theodor WEBER
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD OF MANUFACTURING STEREOISOMERS OF BUPRENORPHINE AND ANALOGUE...
- Publication number 20180051032
- Publication date Feb 22, 2018
- Siegfried AG
- Stefan SAHLI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD OF MANUFACTURING BUPRENORPHINE AND ANALOGUES THEREOF FROM OR...
- Publication number 20170319574
- Publication date Nov 9, 2017
- Siegfried AG
- Beat Theodor WEBER
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
METHOD FOR THE PREPARATION OF BETA-SUBSTITUTED GAMMA-AMINO CARBOXYL...
- Publication number 20170114003
- Publication date Apr 27, 2017
- Siegfried Ltd.
- Yoshikazu SUZUKI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
MESOPOROUS DOSAGE FORMS FOR POORLY SOLUBLE DRUGS
- Publication number 20160263123
- Publication date Sep 15, 2016
- Siegfried AG
- Pascal PRINDERRE
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
NOVEL SYNTHESIS OF NOROXYMORPHONE FROM MORPHINE
- Publication number 20160159812
- Publication date Jun 9, 2016
- Siegfried AG
- Beat Theodor WEBER
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORAL PHARMACEUTICAL FORMULATION
- Publication number 20160081939
- Publication date Mar 24, 2016
- Siegfried AG
- Pascal Christian Prinderre
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
METHOD FOR THE PREPARATION OF 1-ARYL-1-ALKYL-2-ALKYL-3-DIALKYLAMINO...
- Publication number 20150183727
- Publication date Jul 2, 2015
- Siegfried AG
- Patrick Cyr
- C07 - ORGANIC CHEMISTRY
Information Patent Application
KIT COMPRISING A PACKAGING MATERIAL AND A SOLID PHARMACEUTICAL OR N...
- Publication number 20140190866
- Publication date Jul 10, 2014
- Siegfried Ltd.
- Peter Demel
- B32 - LAYERED PRODUCTS
Information Patent Application
PREPARATION OF LOW IMPURITY OPIATES IN A CONTINUOUS FLOW REACTOR
- Publication number 20130035489
- Publication date Feb 7, 2013
- Siegfried AG
- Beat Weber
- C07 - ORGANIC CHEMISTRY
Information Patent Application
NICOTINE-CONTAINING PRODUCT
- Publication number 20110207782
- Publication date Aug 25, 2011
- Siegfried Ltd.
- Alexander Franz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
NICOTINE-CONTAINING GRANULATE
- Publication number 20110165253
- Publication date Jul 7, 2011
- Siegfried Ltd.
- Tillmann Roehrich
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Demethylation of 14 hydroxy substituted alkaloid derivatives
- Publication number 20090137809
- Publication date May 28, 2009
- SIEGFRIED Ltd
- Erik Heinz Lauterbach
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the preparation of dicarboxylic lmides
- Publication number 20070197791
- Publication date Aug 23, 2007
- Siegfried Ltd.
- Thomas Landmesser
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the preparation of dicarboxylic imides
- Publication number 20070173647
- Publication date Jul 26, 2007
- Siegfried Ltd.
- Thomas Landmesser
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the production of d-threo-2-phenyl-2-piperidine-2-yl ace...
- Publication number 20060135777
- Publication date Jun 22, 2006
- Siegfried Ltd.
- Huldreich Trafelet
- C07 - ORGANIC CHEMISTRY

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Trademarklast 30 trademarks

Information Trademark
76160981 - SIEGFRIED
- Serial number 76160981
- Registration number 2754938
- Filing date Nov 7, 2000
- SIEGFRIED AG
- 35 - Advertising
Information Trademark
73000581 - S SIEGFRIED
- Serial number 73000581
- Registration number 1000862
- Filing date Sep 10, 1973
- SIEGFRIED AKTIENGESELLSCHAFT
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry

SIEGFRIED LTD

Organization

Patents Grantslast 30 patents

Preparation of racemic nicotine by reaction of ethyl nicotinate wit...

Enantiomeric separation of racemic nicotine by addition of an O,O″-...

Synthesis of mono-chlorinated acetophenone

Preparation of racemic nicotine by reaction of ethyl nicotinate wit...

Synthesis of noroxymorphone

Nicotine-containing granulate

Method of manufacturing buprenorphine and analogues thereof from or...

Method of manufacturing stereoisomers of buprenorphine and analogue...

Mesoporous dosage forms for poorly soluble drugs

Oral pharmaceutical formulation

Method for the preparation of beta-substituted gamma-amino carboxyl...

Nicotine-containing product

Kit comprising a packaging material and a solid pharmaceutical or n...

Preparation of low impurity opiates in a continuous flow reactor

Demethylation of 14-hydroxy substituted alkaloid derivatives

Process for the preparation of quaternary N-alkyl morphin or morphi...

Method for introducing a 1,2-double bond into 3-oxo-4-azasteroid co...

Demethylation of 14-hydroxy substituted alkaloid derivatives

Coronary therapeutic agent in the form of soft gelatin capsules

P-fluorobenzoyl-piperidino alkyl theophylline derivatives

Method for the production of acemetacin

Theophylline derivatives

Method for production of imidazolyl vinyl ethers

Process for the stereospecific preparation of (Z)-1-(2,4-dichloroph...

Weed control method and composition

Method for the production of acemetacin

Phenoxy alkanoic acid derivatives having the ability to lower the l...

Process for the preparation of 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,...

Process for producing o-nitrobenzaldehyde

Process for the stereospecific preparation of imidazolyl oximes

Patents Applicationslast 30 patents

PROCESS FOR THE SYNTHESIS OF 1,3-DIHYDRO-IMIDAZO[4,5-B]PYRIDIN-2-ON...

SYNTHESIS OF NOROXYMORPHONE

PREPARATION OF RACEMIC NICOTINE BY REACTION OF ETHYL NICOTINATE WIT...

ENANTIOMERIC SEPARATION OF RACEMIC NICOTINE BY ADDITION OF AN O,O'-...

METHOD OF MANUFACTURING STEREOISOMERS OF BUPRENORPHINE AND ANALOGUE...

METHOD OF MANUFACTURING BUPRENORPHINE AND ANALOGUES THEREOF FROM OR...

METHOD FOR THE PREPARATION OF BETA-SUBSTITUTED GAMMA-AMINO CARBOXYL...

MESOPOROUS DOSAGE FORMS FOR POORLY SOLUBLE DRUGS

NOVEL SYNTHESIS OF NOROXYMORPHONE FROM MORPHINE

ORAL PHARMACEUTICAL FORMULATION

METHOD FOR THE PREPARATION OF 1-ARYL-1-ALKYL-2-ALKYL-3-DIALKYLAMINO...

KIT COMPRISING A PACKAGING MATERIAL AND A SOLID PHARMACEUTICAL OR N...

PREPARATION OF LOW IMPURITY OPIATES IN A CONTINUOUS FLOW REACTOR

NICOTINE-CONTAINING PRODUCT

NICOTINE-CONTAINING GRANULATE

Demethylation of 14 hydroxy substituted alkaloid derivatives

Method for the preparation of dicarboxylic lmides

Method for the preparation of dicarboxylic imides

Method for the production of d-threo-2-phenyl-2-piperidine-2-yl ace...

Trademarklast 30 trademarks

76160981 - SIEGFRIED

73000581 - S SIEGFRIED