Patents by Inventor René Tobias STEMMLER

René Tobias STEMMLER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240216294
    Abstract: The present invention relates to the use of propanediol mononitrate in combination with certain natural substances for reducing the production of methane emanating from the digestive activities of said ruminant as well as in increasing the organic matter digestibility in said ruminant.
    Type: Application
    Filed: April 12, 2022
    Publication date: July 4, 2024
    Inventors: Maik KINDERMANN, Ulla LETINOIS, Luis Fernando MONTEIRO TAMASSIA, René Tobias STEMMLER, Nicola WALKER
  • Publication number: 20240207203
    Abstract: The present invention relates to the field of reduction of methane emission in ruminants. Particularly, it relates to the administration of gossypol and propanediol mononitrate to a ruminant for reducing the production of methane emanating from the digestive activities of said ruminant.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 27, 2024
    Inventors: Maik KINDERMANN, Ulla LETINOIS, Luis Fernando MONTEIRO TAMASSIA, René Tobias STEMMLER, Nicola WALKER
  • Publication number: 20240207200
    Abstract: The present invention relates to the field of reduction of methane emission in ruminants. Particularly, it relates to the administration of limonene and propanediol mononitrate to a ruminant for reducing the production of methane emanating from the digestive activities of said ruminant.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 27, 2024
    Inventors: Maik KINDERMANN, Ulla LETINOIS, Luis Fernando MONTEIRO TAMASSIA, René Tobias STEMMLER, Nicola WALKER
  • Publication number: 20240196933
    Abstract: The present invention relates to the field of reduction of methane emission in ruminants. Particularly, it relates to the administration of gossypol and a methane inhibitor to a ruminant for reducing the production of methane emanating from the digestive activities of said ruminant.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 20, 2024
    Inventors: Maik KINDERMANN, Ulla LETINOIS, René Tobias STEMMLER, Nicola WALKER, Luis Fernando MONTEIRO TAMASSIA
  • Publication number: 20240196932
    Abstract: The present invention relates to the field of reduction of methane emission in ruminants. Particularly. it relates to the administration of gossypol in an amount of at least 7.5 g gossypol/animal/day to a ruminant for reducing the production of methane emanating from the diges-5tive activities of said ruminant.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 20, 2024
    Inventors: Maik KINDERMANN, Ulla LETINOIS, Luis Fernando MONTEIRO TAMASSIA, René Tobias STEMMLER, Nicola WALKER
  • Publication number: 20230165276
    Abstract: The present invention is directed towards the use of 2H-chromens and their derivatives of formula (I) and/or of formula (II) wherein R1 and R2 are independently from each other H or C1-11-alkyl or (CH2)n—OH with n being an integer from 1 to 6 or R1 and R2 together represent a keto group, and wherein R3, R4, R5, and R6 are independently from each other H or C1-6-alkyl or C1-6-alkoxy, and R7 is H or C1-6-alkyl, as antioxidants, especially in feed such as pet food and feed ingredients such as fish meal, insect meal and poultry meal, as well as PUFA-containing oil such as marine oil, microbial oil, fungal oil, algal oil and PUFA-containing plant oil. The present invention is further directed towards feed ingredients and feed for insects, aquatic and terrestrial animals comprising such 2H- chromens and their derivatives of formula (I) and/or of formula (II).
    Type: Application
    Filed: March 29, 2019
    Publication date: June 1, 2023
    Inventors: Laure CLASADONTE, André DUESTERLOH, Weerasinghe INDRASENA, Thomas NETSCHER, René, Tobias STEMMLER, Christof WERHLI
  • Patent number: 11274071
    Abstract: The present invention relates to the manufacturing of a process of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and alkyl 2-acetyl-9,13-di-methyl-5-methylenetetradeca-8,12-dienoate as well as 6,10,14-trimethylpenta-deca-5,9,13-trien-2-one and 10,14-dimethyl-6-methylenepentadeca-9,13-dien-2-5 one and 6,10,14-trimethylpentadecan-2-one.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 15, 2022
    Assignee: DSM IP ASSETS B.V.
    Inventors: Marcel Joray, René Tobias Stemmler
  • Patent number: 11078178
    Abstract: The present invention relates to novel compounds which are particularly useful for the synthesis of novel chromanol derivatives. These compounds have interesting properties. Particularly, the novel chromanol derivatives have interesting antioxidant properties as well as flavours and fragrances.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: August 3, 2021
    Assignee: DSM IP ASSETS B.V.
    Inventors: Raphael Beumer, Werner Bonrath, Jan-Marc Delpho, Marcel Joray, Jonathan Alan Medlock, Thomas Netscher, Domenico Soriano, René Tobias Stemmler
  • Publication number: 20210037855
    Abstract: The present invention is directed towards the use of at least one compound of formula (I) wherein R1, R2 and R3 are independently from each other H or linear C1-6-alkyl or branched C3-8-alkyl, as antioxidant, especially in feed such as pet food and feed ingredients such as fish meal, insect meal and poultry meal, as well as PUFA-containing oils such as marine oil, microbial oil, fungal oil, algal oil and PUFA-containing plant oil. The present invention is further directed towards feed ingredients and feed for insects, aquatic and terrestrial animals comprising such twin chromanols of formula (I).
    Type: Application
    Filed: March 29, 2019
    Publication date: February 11, 2021
    Inventors: Laure CLASADONTE, André DUESTERLOH, Weerasinghe INDRASENA, Thomas NETSCHER, René Tobias STEMMLER
  • Publication number: 20200308090
    Abstract: The present invention relates to the manufacturing of a process of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and alkyl 2-acetyl-9,13-di-methyl-5-methylenetetradeca-8,12-dienoate as well as 6,10,14-trimethylpenta-deca-5,9,13-trien-2-one and 10,14-dimethyl-6-methylenepentadeca-9,13-dien-2-5 one and 6,10,14-trimethylpentadecan-2-one.
    Type: Application
    Filed: December 11, 2018
    Publication date: October 1, 2020
    Inventors: Marcel JORAY, René Tobias STEMMLER
  • Publication number: 20200190051
    Abstract: The present invention relates to novel compounds which are particularly useful for the synthesis of novel chromanol derivatives. These compounds have interesting properties. Particularly, the novel chromanol derivatives have interesting antioxidant properties as well as flavours and fragrances.
    Type: Application
    Filed: September 4, 2018
    Publication date: June 18, 2020
    Inventors: Raphael BEUMER, Werner BONRATH, Jan-Marc DELPHO, Marcel JORAY, Jonathan Alan MEDLOCK, Thomas NETSCHER, Domenico SORIANO, René Tobias STEMMLER
  • Patent number: 10183916
    Abstract: The invention relates to an improved process for the manufacture of bis-resorcinyl triazines of formula (I) wherein R1 is a C1C18alkyl group or C2-C18alkenyl group as well as the respective alkyl substituted bis-resorcinyl derivatives of formula (II) wherein R1 is a C1-C18alkyl group or C2-C18alkenyl group and R2 and R3 are independently of each other a C1-C18alkyl group or a C2-C18alkenyl group.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: January 22, 2019
    Assignee: DSM IP ASSETS B.V.
    Inventors: Nadine Greiner, Sandro Schmid, René Tobias Stemmler
  • Patent number: 10179772
    Abstract: The invention relates to an improved process for the manufacture of bis-resorcinyl triazines of formula (I), wherein R1 is hydrogen, a C1-C18 alkyl group or a C2-C18 alkenyl group and R2 is a C1-C18 alkyl group or a C2-C18 alkenyl group.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: January 15, 2019
    Assignee: DSM IP ASSETS B.V.
    Inventors: Nadine Greiner, Sandro Schmid, René Tobias Stemmler
  • Publication number: 20180170886
    Abstract: The invention relates to an improved process for the manufacture of bis-resorcinyl triazines of formula (I) wherein R1 is a C1C18alkyl group or C2-C18alkenyl group as well as the respective alkyl substituted bis-resorcinyl derivatives of formula (II) wherein R1 is a C1-C18alkyl group or C2-C18alkenyl group and R2 and R3 are independently of each other a C1-C18alkyl group or a C2-C18alkenyl group.
    Type: Application
    Filed: May 12, 2016
    Publication date: June 21, 2018
    Inventors: Nadine GREINER, Sandro SCHMID, René Tobias STEMMLER
  • Publication number: 20180170885
    Abstract: The invention relates to an improved process for the manufacture of bis-resorcinyl triazines of formula (I), wherein R1 is hydrogen, a C1-C18alkyl group or a C2-C18alkenyl group and R2 is a C1-C18alkyl group or a C2-C18alkenyl group.
    Type: Application
    Filed: May 12, 2016
    Publication date: June 21, 2018
    Applicant: DMS IP ASSETS B.V.
    Inventors: Nadine GREINER, Sandro SCHMID, René Tobias STEMMLER
  • Patent number: 9765002
    Abstract: The present invention relates to a process of a cis/trans isomerization of an unsaturated compound A being selected from the group consisting of unsaturated ketones, unsaturated ketals, unsaturated aldehydes, unsaturated acetals, unsaturated carboxylic acids, esters of an unsaturated carboxylic acid and amides of an unsaturated carboxylic acid using polythiol as cis/trans isomerization catalyst. It has been observed that the isomerization is very efficient and fast.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 19, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: René Tobias Stemmler, Nadine Greiner
  • Patent number: 9611200
    Abstract: The present invention relates to a process of manufacturing (6R,10R)-6,10,14-trimethylpentadecan-2-one in a multistep synthesis from a mixture of (5E,9E)-, (5E,9Z)-, (5Z,9E)- and (5Z.9Z)-isomers of 6,10,14-trimethylpentadeca-5,9,13-trien-2-one or 6,10,14-trimethylpentadeca-5,9-dien-2-one. The process is very advantageous in that it forms in an efficient way the desired chiral product from a mixture of stereoisomers of the starting product.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 4, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Thomas Netscher, Jonathan Alan Medlock, René Tobias Stemmler, Johannes Tschumi, Gerardus Karel Maria Verzijl, Andreas Hendrikus Maria De Vries
  • Patent number: 9573872
    Abstract: The present invention relates to a process of manufacturing compound having stereogenic centers from a mixture of E/Z isomers of unsaturated compounds having prochiral double bonds. The hydrogenation product has a specific desired configuration at the stereogenic centers. The process involves an asymmetric hydrogenation and an isomerization step. The process is very advantageous in that it forms the desired chiral product from a mixture of stereoisomers of the starting product in an efficient way.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 21, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Thomas Netscher, Jonathan Alan Medlock, René Tobias Stemmler, Gerardus Karel Maria Verzijl, Andreas Hendrikus Maria De Vries
  • Patent number: 9458076
    Abstract: The present invention relates to a process of manufacturing compound having stereogenic centers from a mixture of E/Z isomers of unsaturated compounds having prochiral double bonds. The hydrogenation product has a specific desired configuration at the stereogenic centers. The process involves two asymmetric hydrogenation steps. The process is very advantageous in that it forms the desired chiral product from a mixture of stereoisomers of the starting product in an efficient way.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: October 4, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Thomas Netscher, Jonathan Alan Medlock, René Tobias Stemmler, Gerardus Karel Maria Verzijl, Andreas Hendrikus Maria De Vries
  • Patent number: 9452961
    Abstract: The present invention relates to a process of manufacturing (6R,10R)-6,10,14-trimetylpentadecan-2-one in a multistep synthesis from 6,10-dimetylundec-5-en-2-one or 6,10-dimetylundeca-5,9-dien-2-one. The process is very advantageous in that it forms in an efficient way the desired chiral product from a mixture of stereoisomers of the starting product.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 27, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Thomas Netscher, Jonathan Alan Medlock, René Tobias Stemmler, Johannes Tschumi, Gerardus Karel Maria Verzijl, Andreas Hendrikus Maria De Vries