Patents by Inventor Viola Groehn

Viola Groehn 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).

  • Patent number: 11510988
    Abstract: The present invention is directed to carrier systems comprising ether-lipids conjugated to one or more bioactive ligands and exposed on the surface of the carrier system for use in targeted delivery and/or antigen display systems. Optionally one or more further bioactive agents may be encapsulated or embedded within or attached to or adsorbed onto the carrier system. The present invention is further directed to methods of their preparation and their uses in medical applications, such as targeted delivery of bioactive agents to specific tissues or cells and antigen display systems for the study, diagnosis, and treatment of traits, diseases and conditions that respond to said bioactive agents.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 29, 2022
    Assignee: Merck Patent GmbH
    Inventors: Michael Platscher, Raymond Behrendt, Viola Groehn, Simone Hoertner, Marco Passafaro, Finn Bauer
  • Patent number: 11377448
    Abstract: The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:1.51 to 1:2.5 and/or hydrates and/or solvates thereof, as well as, a process of obtaining the same.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 5, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Rudolf Moser, Viola Groehn, Fritz Blatter, Martin Szelagiewicz, Ruth Boehni Stamm, Markus Ruettimann
  • Patent number: 11337978
    Abstract: The present invention is directed to stable lyophilisates comprising 5,10-methylene-(6R)-tetrahydrofolic acid or a pharmaceutically acceptable salt thereof and a dicarboxylic acid, or a salt thereof, as well as, a processes of obtaining the same, and the use of such products.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: May 24, 2022
    Assignee: Merck Patent GmbH
    Inventors: Rudolf Moser, Viola Groehn, Thomas Ammann
  • Publication number: 20220143027
    Abstract: The invention is directed towards stable formulations of 5,10-methylene-(6R)-tetrahydrofolic acid and its hemisulfate salt as well as pharmaceutical compositions and uses thereof in therapy, preferably chemotherapy.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: MERCK & CIE
    Inventors: Rudolf MOSER, Viola GROEHN, Thomas EGGER, Thomas AMMANN
  • Patent number: 11306094
    Abstract: The invention is directed towards stable formulations of 5,10-methylene-(6R)-tetrahydrofolic acid and its hemisulfate salt as well as pharmaceutical compositions and uses thereof in therapy, preferably chemotherapy.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: April 19, 2022
    Assignee: MERCK & CIE
    Inventors: Rudolf Moser, Viola Groehn, Thomas Egger, Thomas Ammann
  • Publication number: 20220024940
    Abstract: The present invention is directed towards the hemisulfate salt of 5,10-methylene-(6R)-tetrahydrofolic acid, preferably in substantially crystalline form, as well as pharmaceutical compositions and uses thereof in therapy, preferably chemotherapy.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Applicant: MERCK & CIE
    Inventors: Rudolf MOSER, Viola GROEHN, Thomas EGGER, Thomas AMMANN
  • Publication number: 20220016121
    Abstract: The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:0.5 to 1:1.5 (in mol/mol) and/or hydrates and/or solvates thereof, as well as, a processes of obtaining the same.
    Type: Application
    Filed: July 28, 2021
    Publication date: January 20, 2022
    Applicant: Merck Patent GmbH
    Inventors: Rudolf MOSER, Viola GROEHN, Fritz BLATTER, Martin SZELAGIEWICZ, Ruth BOEHNI STAMM, Markus RUETTIMANN, Giuseppe LAPADULA
  • Patent number: 11185545
    Abstract: The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:0.5 to 1:1.5 (in mol/mol) and/or hydrates and/or solvates thereof, as well as, a processes of obtaining the same.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: November 30, 2021
    Assignee: Merck Patent GmbH
    Inventors: Rudolf Moser, Viola Groehn, Fritz Blatter, Martin Szelagiewicz, Ruth Boehni Stamm, Markus Ruettimann, Giuseppe Lapadula
  • Publication number: 20210283136
    Abstract: The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid L-leucine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid and L-leucine ethyl ester is from 1:0.3 to 1:3.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 16, 2021
    Applicant: MERCK PATENT GMBH
    Inventors: Rudolf MOSER, Viola GROEHN, Ruth BOEHNI STAMM, Fritz BLATTER, Martin SZELAGIEWICZ
  • Publication number: 20210277006
    Abstract: The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and an amino acid ethyl ester like L-phenylalanine ethyl ester or L-methionine ethyl ester, wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to amino acid ethyl ester is from 1:0.3 to 1:3.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 9, 2021
    Applicant: MERCK PATENT GMBH
    Inventors: Rudolf MOSER, Viola GROEHN, Ruth BOEHNI STAMM, Fritz BLATTER, Martin SZELAGIEWICZ
  • Publication number: 20210275533
    Abstract: The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester is from 1:0.3 to 1:3.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 9, 2021
    Applicant: Merck Patent GmbH
    Inventors: Rudolf MOSER, Viola GROEHN, Ruth BOEHNI STAMM, Fritz BLATTER, Martin SZELAGIEWICZ
  • Publication number: 20210269444
    Abstract: The present invention is directed to a crystalline salt of 5-methyl-(6S)-tetrahydrofolic acid and L-isoleucine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to L-isoleucine ethyl ester is from 1:0.3 to 1:2.0 (in mol/mol) and/or hydrates and/or solvates thereof, as well as, a process of obtaining the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 2, 2021
    Applicant: Merck Patent GmbH
    Inventors: Rudolf MOSER, Viola GROEHN, Ruth BOEHNI STAMM, Fritz BLATTER, Martin SZELAGIEWICZ
  • Publication number: 20210220366
    Abstract: The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and 4-(2-hydroxyethyl)-morpholine wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to 4-(2-hydroxyethyl)-morpholine is from 1:0.3 to 1:2.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: July 22, 2021
    Applicant: MERCK PATENT GMBH
    Inventors: Rudolf MOSER, Viola GROEHN, Ruth BOEHNI STAMM, Fritz BLATTER, Martin SZELAGIEWICZ
  • Patent number: 11066408
    Abstract: The present invention is directed to crystalline salt of 5-methyl-(6S)-tetrahydrofolic acid comprising (i) 5-methyl-(6S)-tetrahydrofolic acid, (ii) sodium and (iii) an organic base having a pKa value from 6 to 11; wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to the sodium is from 1:0.5 to 1:1.5 and the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to the organic base is 1:0.5 to 1:1.5 and/or hydrates and/or solvates thereof, as well as, a processes of obtaining the same.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 20, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Rudolf Moser, Viola Groehn, Fritz Blatter, Martin Szelagiewicz, Ruth Boehni Stamm, Markus Ruettimann, Giuseppe Lapadula
  • Publication number: 20210107902
    Abstract: The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:1.51 to 1:2.5 and/or hydrates and/or solvates thereof, as well as, a process of obtaining the same.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 15, 2021
    Applicant: MERCK PATENT GMBH
    Inventors: Rudolf MOSER, Viola GROEHN, Fritz BLATTER, Martin SZELAGIEWICZ, Ruth BOEHNI STAMM, Markus RUETTIMANN
  • Patent number: 10973936
    Abstract: The present invention is directed towards new 18F-folate radiopharmaceuticals, wherein the 18F isotope is linked via a prosthetic group, more specifically via a prosthetic group having a saccharide group, such as a cyclic mono- or oligosaccharide, preferably based on a pyranoside or furanoside, which is covalently linked to the glutamate portion of a folate or derivative thereof, a method of their preparation, as well as their use in diagnosis and monitoring of cancer and inflammatory and autoimmune diseases and therapy thereof.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: April 13, 2021
    Assignee: MERCK & CIE
    Inventors: Roger Schibli, Rudolf Moser, Cristina Magdalena Muller, Simon Mensah Ametamey, Cindy Ramona Fischer, Viola Groehn
  • Patent number: 10961246
    Abstract: The present invention is directed towards new 18F-folate radiopharmaceuticals, wherein fluorine-18 is covalently linked to the glutamate portion of a folate or derivative thereof, a method of their preparation, as well as their use in diagnosis and monitoring of therapy of cancer and inflammatory and autoimmune diseases.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 30, 2021
    Assignee: MERCK & CIE
    Inventors: Roger Schibli, Rudolf Moser, Cristina Magdalena Muller, Simon Mensah Ametamey, Tobias Ludwig Ross, Viola Groehn
  • Publication number: 20200368236
    Abstract: The present invention is directed to stable lyophilisates comprising 5,10-methylene-(6R)-tetrahydrofolic acid or a pharmaceutically acceptable salt thereof and a dicarboxylic acid, or a salt thereof, as well as, a processes of obtaining the same, and the use of such products.
    Type: Application
    Filed: August 15, 2018
    Publication date: November 26, 2020
    Applicant: Merck Patent GmbH
    Inventors: Rudolf MOSER, Viola GROEHN, Thomas AMMANN
  • Publication number: 20200306390
    Abstract: The present invention is directed towards isomerically pure 18F-labelled (6S)- or (6R)-5-methyltetrahydrofolate radiopharmaceuticals, wherein the phenyl group within the folate structure, has been replaced by an 18F-labelled N-heterocycle, for use in diagnostic imaging of a cell or population of cells expressing a folate-receptor in vitro or in vivo or for use in monitoring of cancer or inflammatory and autoimmune diseases and therapy thereof.
    Type: Application
    Filed: March 19, 2018
    Publication date: October 1, 2020
    Applicant: Merck Patent GmbH
    Inventors: Rudolf MOSER, Viola GROEHN, Cristina MUELLER, Roger SCHIBLI, Simon AMETAMEY, Silvan BOSS
  • Publication number: 20200283443
    Abstract: The invention is directed towards stable formulations of 5,10-methylene-(6R)-tetrahydrofolic acid and its hemisulfate salt as well as pharmaceutical compositions and uses thereof in therapy, preferably chemotherapy.
    Type: Application
    Filed: February 20, 2020
    Publication date: September 10, 2020
    Applicant: MERCK & CIE
    Inventors: Rudolf MOSER, Viola GROEHN, Thomas EGGER, Thomas AMMANN