Patents by Inventor Friedhelm Merz

Friedhelm Merz 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: 11441119
    Abstract: Disclosed herein is a cell culture media containing L-glutamine from a set of N-acylated dipeptides Acyl-X-Q, and L-glutamine from a set of other glutamine-sources Qsource in a defined molar ratio R=n(Acyl-X-Q)/n(Qsource), wherein the variables X, Q, Acyl, R, n(Acyl-X-Q) and n(Qsource) are defined in the general disclosure. Processes of using the cell culture media are also described herein.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 13, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Guenter Knaup, Friedhelm Merz
  • Publication number: 20200024571
    Abstract: Disclosed herein is a cell culture media containing L-glutamine from a set of N-acylated dipeptides Acyl-X-Q, and L-glutamine from a set of other glutamine-sources Qsource in a defined molar ratio R=n(Acyl-X-Q)/n(Qsource), wherein the variables X, Q, Acyl, R, n(Acyl-X-Q) and n(Qsource) are defined in the general disclosure. Processes of using the cell culture media are also described herein.
    Type: Application
    Filed: March 2, 2018
    Publication date: January 23, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Guenter KNAUP, Friedhelm MERZ
  • Publication number: 20200010796
    Abstract: The present invention relates to a culture medium, preferably a cell culture medium, comprising at least one dipeptide, the dipeptide comprising asparagine (Asn) and glutamine (Gln). The invention further relates to the use of a culture medium of the invention for culturing cells, preferably plant cells, animal cells or mammalian cells. Another aspect of the invention relates to a method of manufacturing a cell culture product comprising the steps of (i) providing a cell capable of producing said cell culture product; (ii) contacting said cell with a culture medium according to the invention; and (iii) obtaining said cell culture product from said culture medium or from said cell.
    Type: Application
    Filed: March 2, 2018
    Publication date: January 9, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Friedhelm MERZ, Andreas KARAU, Thomas HERMANN, Guenter KNAUP
  • Publication number: 20190390161
    Abstract: The invention relates to a culture medium containing at least one oligopeptide of 2-10 amino acids in length. The amino acids are natural amino acids. At least one of the amino acids is lysine; and one further is cysteine, cystine, leucine, tyrosine, valine, or Isoleucine. The oligopeptide is present in an amount of at least 0.1 mM. The invention also relates to the use of the culture medium for culturing cells, preferably plant cells, animal cells or mammalian cells. The invention further relates to a method of manufacturing a cell culture product including the steps of (i) providing a cell capable of producing the cell culture product; (ii) contacting the cell with the culture medium, and (iii) obtaining the cell culture product from the culture medium or from the cell.
    Type: Application
    Filed: March 2, 2018
    Publication date: December 26, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Guenter KNAUP, Friedhelm MERZ, Christian KESSLER
  • Patent number: 8642790
    Abstract: 5-hydroxymethylfurfural of the formula II is prepared via a 5-acyloxymethylfurfural as an intermediate.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 4, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Dietmar Reichert, Martin Sarich, Friedhelm Merz
  • Publication number: 20080200698
    Abstract: 5-hydroxymethylfurfural of the formula II is prepared via a 5-acyloxymethylfurfural as an intermediate.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 21, 2008
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Dietmar Reichert, Martin Sarich, Friedhelm Merz
  • Patent number: 6844306
    Abstract: The invention relates to water-soluble, chlorhexidine-containing compositions having a long shelf life. The compositions are in the form of powder, granules or tablets and consist substantially of (i) a salt of chlorhexidine with 2 moles of a sugar acid and a microbicidally active quaternary ammonium bromide, or of (ii) chlorhexidine, a sugar acid or sugar lactone, with at least 2 moles of sugar acid or sugar lactone being present per mole of chlorhexidine, and a microbicidally active quaternary ammonium bromide. Peferred compositions consist substantially of chlorhexidine digluconate and N-cetyl-N,N,N-trimethylammonium bromide (cetrimide) in a weight ratio of 1:1 to 1:10. The solid compositions are stable, with little or no p-chloroaniline splitting off during storage.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: January 18, 2005
    Assignee: Degussa AG
    Inventors: Peter Werle, Friedhelm Merz, Jolanta Habrich
  • Patent number: 6500466
    Abstract: Powdered mixtures of chlorhexidine base with selected sugar acids or lactones from the group gluconic acid or gluconolactone, lactobionic acid (I), D-galactono-&ggr;-lactone (II), L-mannono-&ggr;-lactone (III), D-(−)-gulono-&ggr;-lactone (IV), D-(+)-galacturonic acid (V) and &agr;-D-heptaglucono-&ggr;-lactone (VI). The formulations have extraordinary storage stability. New chlorhexidine salts with sugar acid anions based on (I) to (VI) and aqueous solutions of these are also described. The formulations, solutions and pure salts are used as disinfectants and to prepare disinfectants.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: December 31, 2002
    Assignee: Degussa AG
    Inventors: Peter Werle, Friedhelm Merz, Judith N. Jørgensen, Martin Trageser
  • Publication number: 20020072480
    Abstract: The invention relates to water-soluble, chlorhexidine-containing compositions having a long shelf life. The compositions are in the form of powder, granules or tablets and consist substantially of (i) a salt of chlorhexidine with 2 moles of a sugar acid and a microbicidally active quaternary ammonium bromide, or of (ii) chlorhexidine, a sugar acid or sugar lactone, with at least 2 moles of sugar acid or sugar lactone being present per mole of chlorhexidine, and a microbicidally active quaternary ammonium bromide. Peferred compositions consist substantially of chlorhexidine digluconate and N-cetyl-N,N,N-trimethylammonium bromide (cetrimide) in a weight ratio of 1:1 to 1:10. The solid compositions are stable, with little or no p-chloroaniline splitting off during storage.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 13, 2002
    Applicant: DEGUSSA AG
    Inventors: Peter Werle, Friedhelm Merz, Jolanta Habrich
  • Publication number: 20020018814
    Abstract: Powdered mixtures of chlorhexidine base with selected sugar acids or lactones from the group gluconic acid or gluconolactone, lactobionic acid (I), D-galactono-&ggr;-lactone (II), L-mannono-&ggr;-lactone (III), D-(−)-gulono-&ggr;-lactone (IV), D-(+)-galacturonic acid (V) and &agr;-D-heptaglucono-&ggr;-lactone (VI). The formulations have extraordinary storage stability. New chlorhexidine salts with sugar acid anions based on (I) to (VI) and aqueous solutions of these are also described. The formulations, solutions and pure salts are used as disinfectants and to prepare disinfectants.
    Type: Application
    Filed: December 13, 1999
    Publication date: February 14, 2002
    Inventors: PETER WERLE, FRIEDHELM MERZ, JUDITH N. JORGENSEN, MARTIN TRAGESER