Patents by Inventor Shawn A. Defrees

Shawn A. Defrees 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: 8043833
    Abstract: The present invention provides enhanced methods of producing soluble, active fibroblast growth factor-20 (FGF-20), FGF-21, neurotrophin-3 (NT-3), growth hormone (GH), granulocyte colony stimulating factor (G-CSF), or glucocerebrosidase proteins in microorganisms that have an oxidizing environment.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: October 25, 2011
    Assignee: Novo Nordisk A/S
    Inventors: Marc F. Schwartz, Bingyuan Wu, Aliakbar Mobasseri, Shawn A. DeFrees, Tarik Soliman, Karl F. Johnson
  • Patent number: 7888331
    Abstract: Novel synthetic glycosphingolipids and pharmaceutical compositions containing such synthetic glycosphingolipids are described. Methods of making the novel synthetic glycosphingolipid compounds and compositions as well as their use in the field of neuroprotection and cancer treatment is also described.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: February 15, 2011
    Assignee: Seneb Biosciences, Inc.
    Inventors: Shawn A. Defrees, Karl Frank Johnson, Zhi-Guang Wang
  • Publication number: 20090298121
    Abstract: The present invention provides enhanced methods of producing soluble, active fibroblast growth factor-20 (FGF-20), FGF-21, neurotrophin-3 (NT-3), growth hormone (GH), granulocyte colony stimulating factor (G-CSF), or glucocerebrosidase proteins in microorganisms that have an oxidizing environment.
    Type: Application
    Filed: September 6, 2006
    Publication date: December 3, 2009
    Inventors: Marc F. Schwartz, Bingyuan Wu, Aliakbar Mobasseri, Shawn A. DeFrees, Tarik Soliman, Karl F. Johnson
  • Patent number: 5854218
    Abstract: The present invention relates to analogues of sialyl Le.sup.x that inhibit cellular adhesion between a selectin and cells that express sialyl Le.sup.x on their surfaces, as well as methods and compositions using the same, intermediates and methods for the preparation of the cellular adhesion inhibitor compounds and their intermediates.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 29, 1998
    Assignee: Cytel Corporation
    Inventor: Shawn A. DeFrees
  • Patent number: 5604207
    Abstract: The inventive compounds are analogues of sialyl Le.sup.x that inhibit cellular adhesion between a selectin and cells that express sialyl Le.sup.x on their surfaces, and their synthetic intermediates. An inventive compound has structure A, ##STR1## wherein Z is hydrogen, C.sub.1 -C.sub.6 acyl or ##STR2## Y is C(O), SO.sub.2, HNC(O), OC(O) or SC(O); R.sup.1 is an aryl, a substituted aryl or a phenyl C.sub.1 -C.sub.3 alkylene group, wherein an aryl group has one five- or six-membered aromatic ring, a fused five/six-membered aromatic ring, or two fused six-membered aromatic rings, which rings are hydrocarbyl, monooxahydrocarbyl, monothiahydrocarbyl, monoazahydrocarbyl or diazahydrocarbyl rings, and a substituted aryl group is an aryl group having a halo, trifluoromethyl, nitro, C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy, amino, mono-C.sub.1 -C.sub.18 alkylamino, di-C.sub.1 -C.sub.18 alkylamino, benzylamino, C.sub.1 -C.sub.18 alkylbenzylamino, C.sub.1 -C.sub.18 thioalkyl or C.sub.1 -C.sub.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: February 18, 1997
    Assignee: Cytel Corporation
    Inventors: Shawn A. DeFrees, Federico C. A. Gaeta, John J. Gaudino, Zhongli Zheng, Masaji Hayashi
  • Patent number: 5559103
    Abstract: The present invention relates to bivalent sialyl Lewis X saccharide compounds that inhibit cellular binding to a selectin receptor. Pharmaceutical compositions containing a compound of Formula I, and processes for making and using the same are disclosed. A contemplated bivalent sialyl Lewis X saccharide compound has a structure that corresponds to Formula I, below, ##STR1## wherein R is a directly linked divalent monosaccharide unit; Y is selected from the group consisting of C(O), SO.sub.2, HNC(O), OC(O) and SC(O);R.sup.2 is selected from the group consisting of a C.sub.1 -C.sub.6 hydrocarbyl, an aryl, a substituted aryl and a phenyl C.sub.1 -C.sub.3 alkylene group, wherein an aryl group has one six-membered aromatic ring or two fused six-membered aromatic rings, which ring or rings are hydrocarbyl, monoazahydrocarbyl, or diazahydrocarbyl rings, and a substituted aryl group is a before-mentioned aryl group having a substituent selected from the group consisting of halo, trifluoromethyl, nitro, C.sub.1 -C.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: September 24, 1996
    Assignee: Cytel Corporation
    Inventors: Federico C. A. Gaeta, Shawn A. DeFrees