Patents by Inventor David Zopf

David Zopf 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: 20050250678
    Abstract: The present invention provides polypeptides that include an O-linked glycosylation site that is not present in the wild-type peptide. The polypeptides of the invention include glycoconjugates in which a species such as a water-soluble polymer, a therapeutic agent of a biomolecule is covalently linked through an intact O-linked glycosyl residue to the polypeptide. Also provided are methods of making the peptides of the invention and methods, pharmaceutical compositions containing the peptides and methods of treating, ameliorating or preventing diseased in mammals by administering an amount of a peptide of the invention sufficient to achieve the desired response.
    Type: Application
    Filed: January 10, 2005
    Publication date: November 10, 2005
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Zhi-Guang Wang, Henrik Clausen
  • Publication number: 20050143292
    Abstract: The present invention provides conjugates between erythropoietin and PEG moieties. The conjugates are linked via an intact glycosyl linking group interposed between and covalently attached to the peptide and the modifying group. The conjugates are formed from glycosylated peptides by the action of a glycosyltransferase. The glycosyltransferase ligates a modified sugar moiety onto a glycosyl residue on the peptide. Also provided are methods for preparing the conjugates, methods for treating various disease conditions with the conjugates, and pharmaceutical formulations including the conjugates.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 30, 2005
    Inventors: Shawn DeFrees, Robert Bayer, David Zopf
  • Publication number: 20050106658
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group of peptide.
    Type: Application
    Filed: October 9, 2002
    Publication date: May 19, 2005
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20050100982
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: May 12, 2005
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20050031584
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: February 10, 2005
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040142856
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: July 22, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040137557
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group a peptide.
    Type: Application
    Filed: November 5, 2002
    Publication date: July 15, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040132640
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: July 8, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040126838
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: July 1, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040115168
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: June 17, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040082026
    Abstract: The invention includes a multitude of methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: April 29, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040077836
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: April 22, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Publication number: 20040063911
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: April 1, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, David Hakes, Xi Chen
  • Publication number: 20040043446
    Abstract: The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
    Type: Application
    Filed: April 9, 2003
    Publication date: March 4, 2004
    Applicant: Neose Technologies, Inc.
    Inventors: Shawn DeFrees, David Zopf, Robert Bayer, Caryn Bowe, David Hakes, Xi Chen
  • Patent number: 6001819
    Abstract: The present invention is directed to compositions for the treatment of respiratory infections caused by a bacteria selected from the group consisting of S. pneumoniae, H. influenzae, H. parainfluenza, Burkholderia (Pseudomonas) cepacia, and a mixture thereof, comprising a binding inhibiting effective amount of the compound of Formula I, ##STR1## where R.sub.1 is H, (.beta.-1)GalNAc-, SO.sub.3 B (where B is H or a cation) or a sialic acid of Formula II; ##STR2## where R.sub.6, R.sub.7, R.sub.8, and R.sub.10 are each independently H, C.sub.1-6 acyl, lactyl, C.sub.1-6 alkyl, sulfate, phosphate, anhydro, a sialic acid of Formula II, (.alpha.-1)Fuc, (.beta.-1)Glc or (.beta.-1)Gal;R.sub.9 is NH--C.sub.1-6 acyl, glycolylamido, amino or hydroxyl; andA is H or a cation;R.sub.2 is H or (.alpha.-1)Fuc-;R.sub.3 and R.sub.4 are each independently OH or NHAc;R.sub.5 is H, SO.sub.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: December 14, 1999
    Assignee: Neose Technologies, Inc.
    Inventors: Paul M. Simon, David Zopf, Roger A. Barthelson, Karl F. Johnson
  • Patent number: 5843786
    Abstract: The present invention is directed to a method of detecting reducing carbohydrates in a complex biological sample. The sample is filtered, subjected to ion exchange chromatography, derivatized, extracted and analyzed by HPLC.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: December 1, 1998
    Assignee: Neose Technologies, Inc.
    Inventors: Daotian Fu, Ming He, David Zopf
  • Patent number: 5736533
    Abstract: The present invention is directed to a method of treating respiratory infections caused by a bacteria selected from the group consisting of S. pneumoniae, H. influenzae, H. parainfluenzae, Burkholderia (Pseudomonas) cepacia and a mixture thereof, by administering a binding inhibiting effective amount of the compound of Formula I, ##STR1## where R.sub.1 is H, (.beta.-1)GalNAc--, SO.sub.3 B (where B is H or a cation) or a sialic acid of Formula II; ##STR2## where R.sub.6, R.sub.7, R.sub.8, and R.sub.10 are each independently H, C.sub.1-6 acyl, lactyl, C.sub.1-6 alkyl, sulfate, phosphate, anhydro, a sialic acid of Formula II, (.alpha.-1)Fuc, (.beta.-1)Glc or (.beta.-1)Gal;R.sub.9 is NH--C.sub.1-6 acyl, glycolylamido, amino or hydroxyl; andA is H or a cation;R.sub.2 is H or (.alpha.-1)Fuc--;R.sub.3 and R.sub.4 are each independently OH or NHAc;R.sub.5 is H, SO.sub.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 7, 1998
    Assignee: Neose Technologies, Inc.
    Inventors: Paul M. Simon, David Zopf, Roger A. Barthelson, Karl F. Johnson
  • Patent number: 4531639
    Abstract: A packaging article for the handling of sensitive objects, that includes a semi-rigid foam case in which an elastomeric pad has been molded. A rigid support base is also molded within the case and supported on the elastomeric pad. The support base is covered by a release agent which prevents the casing material from permanently adhering to the support base, thus allowing the support base to shift within the case. A handling stand is secured to the sensitive object and may be used to support the object outside of the case. The handling stand mounts on the support base so that the support base handling stand assembly with the sensitive object mounted thereon floats or shifts within the case on the elastomeric pad without any other object surface contacting the support base.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: July 30, 1985
    Inventor: David Zopf