Patents by Inventor Wilhelm Tischer

Wilhelm Tischer 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: 20090143288
    Abstract: The current invention reports a polypeptide conjugate, wherein the conjugate comprises a first polypeptide selected from the group of polypeptides comprising SEQ ID NO: 01 and fragments thereof, and a second polypeptide selected from the group of antifusogenic peptides.
    Type: Application
    Filed: March 10, 2008
    Publication date: June 4, 2009
    Inventors: Hartmut Duefel, Roberto Falkenstein, Iris Lein, Rainer Schmuck, Wilhelm Tischer
  • Publication number: 20080280329
    Abstract: The present invention relates to a method for the in vitro synthesis of deoxyribonucleosides and enzymes suitable for this method.
    Type: Application
    Filed: May 3, 2007
    Publication date: November 13, 2008
    Inventors: Wilhelm Tischer, Hans-Georg Ihlenfeldt, Octavian Barzu, Hiroshi Sakamoto, Elisabeth Pistotnik, Philippe Marliere, Sylvie Pochet
  • Patent number: 7393679
    Abstract: A whole cell catalyst is described comprising a hydantoinase, a racemase and a carbamoylase. Thus this catalyst is able to degrade hydantoins directly into the amino acids. Additionally, a process for the production of this catalysts and for the production of amino acids is claimed.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: July 1, 2008
    Assignees: University of Stuttgart, Degussa AG
    Inventors: Joseph Altenbuchner, Ralf Mattes, Christoph Syldatk, Anja Wiese, Burkard Wilms, Andreas Bommarius, Wilhelm Tischer
  • Patent number: 7348423
    Abstract: A process is disclosed for the production of an antifusogenic peptide by producing a fusion peptide of a length of about 14 to 70 amino acids in a prokaryotic host cell, comprising the steps, under such conditions that inclusion bodies of said fusion peptide are formed, of: (a) expressing in said host cell a nucleic acid encoding said fusion peptide consisting of a first peptide which is an antifusogenic peptide of a length of about 10 to 50 amino acids and a second peptide of a length of about 4 to 30 amino acids, said first peptide being N-terminally linked to said second peptide; (b) cultivating said host cell to produce said inclusion bodies; and (c) recovering said antifusogenic peptide from said inclusion bodies, wherein said recovered antifusogenic peptide consists of said fusion peptide or a peptide comprising the antifusogenic peptide of about 10 to 50 amino acids and which is a fragment cleaved from said fusion peptide. Inclusion bodies of the peptides are disclosed.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: March 25, 2008
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Eva Hoess, Thomas Meier, Gabriele Pestlin, Friedrich Popp, Klaus Reichert, Rainer Schmuck, Bernd Schneidinger, Christoph Seidel, Wilhelm Tischer
  • Patent number: 7229797
    Abstract: The present invention relates to a method for the in vitro enzymatic synthesis of deoxyribonucleosides and enzymes suitable for this method.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: June 12, 2007
    Assignee: Institut Pasteur
    Inventors: Wilhelm Tischer, Hans-Georg Ihlenfeldt, Octavian Barzu, Hiroshi Sakamoto, Elisabeth Pistotnik, Philippe Marlière, Sylvie Pochet
  • Patent number: 7128913
    Abstract: The present invention refers to conjugates of erythropoietin with poly(ethylene glycol) comprising an erythropoietin glycoprotein having an N-terminal ?-amino group and having the in vivo biological activity of causing bone marrow cells to increase production of reticulocytes and red blood cells and selected from the group consisting of human erythropoietin and analogs thereof which have the sequence of human erythropoietin modified by the addition of from 1 to 6 glycosylation sites or a rearrangement of at least one glycosylation site; said glycoprotein being covalently linked to one poly(ethylene glycol) group of the formula —CO—(CH2)x—(OCH2CH2)m—OR wherein the —CO of the poly(ethylene glycol) group forms an amide bond with said N-terminal ?-amino group; and wherein R is lower alkyl; x is 2 or 3; and m is from about 450 to about 1350.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: October 31, 2006
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Josef Burg, Alfred Engel, Reinhard Franze, Bernd Hilger, Hartmut Ernst Schurig, Wilhelm Tischer, Manfred Wozny
  • Publication number: 20050244936
    Abstract: The instant invention is directed to a rec-hydantoin-racemase from Arthrobacter aurescens DSM 3747. Furthermore, the gene encoding for the racemase and plasmids, vectors and microorganisms comprising this gene are to be protected. Use in a process for the production of amino carboxylic acids or derivatives thereof.
    Type: Application
    Filed: June 1, 2005
    Publication date: November 3, 2005
    Applicants: DEGUSSA AG, UNIVERSITAT STUTTGART
    Inventors: Josef Altenbuchner, Ralf Mattes, Markus Pietzsch, Christoph Syldatk, Anja Wiese, Andreas Bommarius, Wilhelm Tischer
  • Patent number: 6930086
    Abstract: This invention is directed to an erythropoietin mutein having in vivo biological activity for causing bone marrow cells to increase production of reticulocytes and red blood cells, in that the mutein is N-glycosylated at Asn38 and Asn83 but not N-glycosylated at Asn24. Such muteins have improved pharmaceutical properties.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: August 16, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Wilhelm Tischer
  • Publication number: 20050058659
    Abstract: A process is disclosed for the production of an antifusogenic peptide by producing a fusion peptide of a length of about 14 to 70 amino acids in a prokaryotic host cell, comprising the steps, under such conditions that inclusion bodies of said fusion peptide are formed, of: (a) expressing in said host cell a nucleic acid encoding said fusion peptide consisting of a first peptide which is an antifusogenic peptide of a length of about 10 to 50 amino acids and a second peptide of a length of about 4 to 30 amino acids, said first peptide being N-terminally linked to said second peptide; (b) cultivating said host cell to produce said inclusion bodies; and (c) recovering said antifusogenic peptide from said inclusion bodies, wherein said recovered antifusogenic peptide consists of said fusion peptide or a peptide comprising the antifusogenic peptide of about 10 to 50 amino acids and which is a fragment cleaved from said fusion peptide. Inclusion bodies of the peptides are disclosed.
    Type: Application
    Filed: October 20, 2004
    Publication date: March 17, 2005
    Inventors: Eva Hoess, Thomas Meier, Gabriele Pestlin, Friedrich Popp, Klaus Reichert, Rainer Schmuck, Bernd Schneidinger, Christoph Seidel, Wilhelm Tischer
  • Patent number: 6858410
    Abstract: A process is provided for producing an antifusogenic peptide by producing a fusion peptide of from about 14 amino acids up to 70 amino acids in a prokaryotic host cell under conditions in which inclusion bodies are formed. The antifusogenic peptide recovered from the inclusion bodies is a fragment cleaved from the fusion peptide which comprises an antifusogenic peptide.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 22, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Eva Hoess, Thomas Meier, Gabriele Pestlin, Friedrich Popp, Klaus Reichert, Rainer Schmuck, Bernd Schneidinger, Christoph Seidel, Wilhelm Tischer
  • Patent number: 6713288
    Abstract: A microorganism is described which is transformed with DNAs which encode a hydantoinnase, a racemase, and a carbamoylase. As a result, the microorganism is able to degrade hydantoins directly to amino acids. A process for the production of the microorganism and a process for producing amino acids with the microorganism is also described.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: March 30, 2004
    Assignees: University of Stuttgart, Degussa AG
    Inventors: Josef Altenbuchner, Andreas Bommarius, Ralf Mattes, Christoph Syldatk, Wilhelm Tischer, Anja Wiese, Burkard Wilms
  • Publication number: 20030175910
    Abstract: A whole cell catalyst is described comprising a hydantoinase, a racemase and a carbamoylase. Thus this catalyst is able to degrade hydantoins directly into the amino acids.
    Type: Application
    Filed: January 2, 2003
    Publication date: September 18, 2003
    Applicant: University of Stuttgart
    Inventors: Josef Altenbuchner, Andreas Bommarius, Ralf Mattes, Christoph Syldatk, Wilhelm Tischer, Anja Wiese, Burkard Wilms
  • Publication number: 20030104581
    Abstract: A process is disclosed for the production of an antifusogenic peptide by producing a fusion peptide of a length of about 14 to 70 amino acids in a prokaryotic host cell, comprising the steps, under such conditions that inclusion bodies of said fusion peptide are formed, of: (a) expressing in said host cell a nucleic acid encoding said fusion peptide consisting of a first peptide which is an antifusogenic peptide of a length of about 10 to 50 amino acids and a second peptide of a length of about 4 to 30 amino acids, said first peptide being N-terminally linked to said second peptide; (b) cultivating said host cell to produce said inclusion bodies; and (c) recovering said antifusogenic peptide from said inclusion bodies, wherein said recovered antifusogenic peptide consists of said fusion peptide or a peptide comprising the antifusogenic peptide of about 10 to 50 amino acids and which is a fragment cleaved from said fusion peptide. Inclusion bodies of the peptides are disclosed.
    Type: Application
    Filed: May 30, 2002
    Publication date: June 5, 2003
    Inventors: Eva Hoess, Thomas Meier, Gabriele Pestlin, Friedrich Popp, Klaus Reichert, Rainer Schmuck, Bernd Schneidinger, Christoph Seidel, Wilhelm Tischer
  • Publication number: 20030077753
    Abstract: This invention is directed to an erythropoietin mutein having in vivo biological activity for causing bone marrow cells to increase production of reticulocytes and red blood cells, in that the mutein is N-glycosylated at Asn38 and Asn83 but not N-glycosylated at Asn24. Such muteins have improved pharmaceutical properties.
    Type: Application
    Filed: September 11, 2002
    Publication date: April 24, 2003
    Inventor: Wilhelm Tischer
  • Publication number: 20020115833
    Abstract: The present invention refers to conjugates of erythropoietin with poly(ethylene glycol) comprising an erythropoietin glycoprotein having an N-terminal &agr;-amino group and having the in vivo biological activity of causing bone marrow cells to increase production of reticulocytes and red blood cells and selected from the group consisting of human erythropoietin and analogs thereof which have the sequence of human erythropoietin modified by the addition of from 1 to 6 glycosylation sites or a rearrangement of at least one glycosylation site; said glycoprotein being covalently linked to one poly(ethylene glycol) group of the formula
    Type: Application
    Filed: December 11, 2001
    Publication date: August 22, 2002
    Inventors: Josef Burg, Alfred Engel, Reinhard Franze, Bernd Hilger, Hartmut Ernst Schurig, Wilhelm Tischer, Manfred Wozny
  • Patent number: 5780260
    Abstract: An enzyme selected from penicillin-G amidase, glutaryl-7-ACA acylase and D-amino acid oxidase is immobilized by covalent bonding on an aminofunctional organosiloxane polymer carrier to provide an immobilized enzyme having a specific volume activity of at least 100 U/g wet carrier. Preferably, the carrier has an average diameter or 0.01 to 3 mm and is essentially spherical. Covalent bonding is accomplished by activating amino groups on the carrier with a dialdehyde and reacting the activated groups with reactive groups on the enzyme. An amount of enzyme is immobilized to provide a weight ratio of enzyme to carrier of 1 to 300 mg protein per g wet carrier.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: July 14, 1998
    Assignee: Boehringer Mannheim GmbH
    Inventors: Frank Wedekind, Adelheid Daser, Wilhelm Tischer
  • Patent number: 5480790
    Abstract: A water-soluble protein conjugate modified by saccharides is covalently bound to a carbohydrate backbone via a saccharide group. Such protein conjugates modified by saccharides can be produced in a simple way by polymerizing a vinylsaccharide and conjugating in a known way the poly(vinylsaccharide) obtained in this way with the protein, which is preferably an enzyme. The protein conjugates according to the present invention are stable over long time periods at a high enzymatic activity and also in aqueous solution and are thus particularly suitable for use in test kits.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: January 2, 1996
    Assignees: Boehringer Mannheim GmbH, Gesellschaft fur Biotechnologische Forschung mbH
    Inventors: Wilhelm Tischer, Joachim Klein, Rolf-Joachim Muller, Stephan Engelke
  • Patent number: 5248592
    Abstract: Alkaline phosphatase to which is covalently bound a carbohydrate of the general formula ##STR1## wherein n is 0, 1, 2 or 3, A is an acyl radical containing 2 to 5 carbon atoms, R.sup.1 and R.sup.2 are each hydrogen atoms or hydroxyl groups, R.sup.3 is --COOH or --CH.sub.2 OH, R.sup.4 is a hydroxyl group or a --CHOH--CHOH--CH.sub.2 OH or --NH--CO--CH.sub.2 --CH(NH.sub.2)--COOH radical or a complex containing the carbohydrate, is used as a standard for the determination of human alkaline phosphate. Preferred carbohydrates are ovomucoid, chitobiose, chitotriose or N-acetylglucosamine-N-acetylneuraminic acid.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: September 28, 1993
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wilhelm Tischer, Martin Gerber, Hellmuth Vetter
  • Patent number: 5134072
    Abstract: A water-soluble polyurethane-modified enzyme is prepared by reaction of an enzyme in aqueous solution with an aqueous solution of a water-soluble polyurethane pre-polymer/bisulfite adduct at a pH greater than 7 to covalently bond the enzyme to the adduct. Preferably, a ratio of enzyme to pre-polymer/bisulfite adduct of from 1:10 to 10:1 is used.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: July 28, 1992
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ulrich Eicken, Wilhelm Tischer
  • Patent number: 5061640
    Abstract: The present invention provides a process for the preparation of a specifically bindable protein substance bound to an insoluble carrier material, especially for use in a heterogeneous analysis process, wherein a soluable protein with a molecular weight above about 500,000, which is more hydrophobic than the specifically bindable substance, is coupled to the specifically bindable substance and then the conjugate of reaction component and protein is adsorbed on a hydrophobic solid phase.The present invention also provides a carrier material for use in solid phase immunoassays including a hydrophobic solid phase which is adsorbed on a conjugate of a hydrophobic protein with a molecular weight above about 500,000 and of a specifically bindable protein or protein containing substance.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: October 29, 1991
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wilhelm Tischer, Josef Maier, Rolf Deeg