Patents by Inventor David R. Olsen

David R. Olsen 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: 9695714
    Abstract: A turbine module comprises a turbine shaft, a rotor assembly secured to the shaft, a bearing assembly rotatably supporting the turbine shaft, and a bearing housing containing the bearing assembly. The bearing housing includes a gutter at least partially circumscribing the bearing assembly, and a drain disposed proximate a base of the gutter. The gutter includes a first sloped floor portion circumferentially adjacent to the drain.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 4, 2017
    Assignee: United Technologies Corporation
    Inventors: David R. Olsen, Frederic G. Miner, Paul H. Dolman
  • Publication number: 20160090871
    Abstract: A turbine module comprises a turbine shaft, a rotor assembly secured to the shaft, a bearing assembly rotatably supporting the turbine shaft, and a bearing housing containing the bearing assembly. The bearing housing includes a gutter at least partially circumscribing the bearing assembly, and a drain disposed proximate a base of the gutter. The gutter includes a first sloped floor portion circumferentially adjacent to the drain.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 31, 2016
    Inventors: David R. Olsen, Frederic G. Miner, Paul H. Dolman
  • Publication number: 20160069211
    Abstract: A turbine module comprises a turbine shaft, a rotor assembly secured to the shaft, a bearing assembly rotatably supporting the turbine shaft, a bearing housing containing the bearing assembly, and a bearing compartment containing the bearing housing. A bearing compartment wall has at least one integral fluid supply passage in fluid communication with the bearing housing. The at least one integral fluid passage extends generally longitudinally through the bearing compartment wall.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 10, 2016
    Inventors: David R. Olsen, Frederic G. Miner, Paul H. Dolman
  • Publication number: 20110207671
    Abstract: The present invention relates to double-crosslinked collagen materials, methods for preparing double-crosslinked collagen materials, and methods of using double-crosslinked
    Type: Application
    Filed: August 21, 2009
    Publication date: August 25, 2011
    Applicant: FibroGen, Inc.
    Inventors: Robert C. Chang, David R. Olsen, Jame W. Polarek, Kim E. Williams
  • Publication number: 20090143568
    Abstract: The present invention relates to recombinant gelatins and compositions thereof, and methods of producing and using the same.
    Type: Application
    Filed: May 15, 2008
    Publication date: June 4, 2009
    Applicant: FibroGen, Inc.
    Inventors: Robert C. Chang, Kari Kivirikko, Thomas B. Neff, David R. Olsen, James W. Polarek
  • Patent number: 7393928
    Abstract: The present invention relates to recombinant gelatins and compositions thereof, and methods of producing and using the same.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: July 1, 2008
    Assignee: FibroGen, Inc.
    Inventors: Robert C. Chang, Kari I. Kivirikko, Thomas B. Neff, David R. Olsen, James W. Polarek
  • Patent number: 6992172
    Abstract: The present invention relates to recombinant gelatins and compositions thereof, and methods of producing and using the same.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: January 31, 2006
    Assignee: FibroGen, Inc.
    Inventors: Robert C. Chang, Kari I. Kivirikko, Thomas B. Neff, David R. Olsen, James W. Polarek
  • Publication number: 20030064074
    Abstract: The present invention relates to vaccines comprising recombinant gelatin, to methods of producing and using such vaccines, and to vaccination kits.
    Type: Application
    Filed: August 30, 2002
    Publication date: April 3, 2003
    Inventors: Robert C. Chang, Kari I. Kivirikko, Thomas B. Neff, David R. Olsen, James W. Polarek
  • Patent number: 6428978
    Abstract: Methods are disclosed for simplified recombinant production of fibrillar collagens. DNAs encoding fibrillar collagen monomers lacking the N propeptide, the C propeptide, or both propeptides are introduced into recombinant host cells and expressed. Trimeric collagen is recovered from the recombinant host cells.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: August 6, 2002
    Assignees: Cohesion Technologies, Inc., Genotypes, Inc.
    Inventors: David R. Olsen, Robert Chang, Hugh McMullin, Ronald A. Hitzeman, George Chisholm
  • Patent number: 6413737
    Abstract: New forms of ecarin, a procoagulant protein from Echis carinatus venom, are described, as are polynucleotides encoding the new proteins, methods for production of the new proteins, and methods for activation of prothrombin using the new proteins. The new ecarins comprise a serine at position 396 of the protein. The new proteins may be used for activation of prothrombin, and are particularly useful for the production of recombinant thrombin.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 2, 2002
    Assignee: Cohesion Technologies, Inc.
    Inventors: David R. Olsen, Jeff Prior, Louis C. Sehl, Donald G. Wallace
  • Patent number: 6413742
    Abstract: Methods are disclosed for simplified recombinant production of fibrillar collagens. DNAs encoding fibrillar collagen monomers lacking the N propeptide, the C propeptide, or both propeptides are introduced into recombinant host cells and expressed. Trimeric collagen is recovered from the recombinant host cells.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: July 2, 2002
    Assignees: Cohesion Technologies, Inc., Genotypes, Inc.
    Inventors: David R. Olsen, Robert Chang, Hugh McMullin, Ronald A. Hitzeman, George Chisholm
  • Patent number: 6199371
    Abstract: The present invention relates to a thermally compliant liner for a gas turbine engine. The liner includes an outer wall, an inner wall spaced radially inwardly from the outer wall leaving a duct therebetween. A plurality of stiffeners are disposed in the duct. The stiffeners include a flexible medial portion which accommodates differential rates of thermal growth between the outer and inner walls. The stiffeners also include radially extending portions which in conjunction with the medial portion, minimize buckling of the liner due to pressure differentials.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 13, 2001
    Assignee: United Technologies Corporation
    Inventors: Keith S. Brewer, Gary F. Chaplin, David R. Olsen
  • Patent number: 5914254
    Abstract: The invention is directed to the use of a fusion partner that does not contain a leader sequence, as a means to increase the solubility and activity of recombinant polypeptides by facilitating the expression of fusion proteins, which are then transported out of the cytoplasm. The invention includes a nucleic acid encoding a fusion polypeptide comprising a mature interleukin-1-like polypeptide or a leader-deleted-translocating polypeptide, and a polypeptide of interest; as well as host cells comprising such nucleic acids, and fusion proteins so encoded. The invention also encompasses methods of using such nucleic acids to produce recombinant fusion polypeptides, mature polypeptides of interest, and purified compositions thereof.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: June 22, 1999
    Assignee: Celtrix Pharmaceuticals, Inc.
    Inventors: Desmond Mascarenhas, Yang Zhang, Pamela S. Olson, David R. Olsen, Pedro A. Cohen, Kimyen B. Nguyen
  • Patent number: 5830706
    Abstract: The invention is directed to the use of IL-1-like fusion polypeptides to increase the solubility and activity of recombinant polypeptides. The invention includes a nucleic acid encoding a fusion polypeptide comprising an interleukin-1-like polypeptide and a polypeptide of interest and the method of using such a nucleic acid to produce recombinant fusion polypeptides.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 3, 1998
    Assignee: Celtrix Pharmaceuticals, Inc.
    Inventors: Desmond Mascarenhas, Yang Zhang, Pamela S. Olson, David R. Olsen, Pedro A. Carrillo
  • Patent number: 5693607
    Abstract: A method of treating TGF-.beta. excess is disclosed. The treatment is parenteral, oral or topical administration of TGF-.beta. receptor fragment. Particularly effective is a soluble receptor fragment which resembles the extracellular portion of TGF-.beta. binding protein II.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: December 2, 1997
    Inventors: Patricia R. Segarini, James R. Dasch, David R. Olsen, Pedro A. Carrillo, Desmond Mascarenhas
  • Patent number: 5629172
    Abstract: The invention is directed to the use of a fusion partner that does not contain a leader sequence, as a means to increase the solubility and activity of recombinant polypeptides by facilitating the expression of fusion proteins, which are then transported out of the cytoplasm. The invention includes a nucleic acid encoding a fusion polypeptide comprising a mature interleukin-1-like polypeptide or a leader-deleted-translocating polypeptide, and a polypeptide of interest; as well as host cells comprising such nucleic acids, and fusion proteins so encoded. The invention also encompasses methods of using such nucleic acids to produce recombinant fusion polypeptides, mature polypeptides of interest, and purified compositions thereof.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: May 13, 1997
    Assignee: Celtrix Pharmaceuticals, Inc.
    Inventors: Desmond Mascarenhas, Yang Zhang, Pamela S. Olson, David R. Olsen, Pedro A. Cohen
  • Patent number: 5563046
    Abstract: The invention is directed to the use of IL-1-like fusion polypeptides to increase the solubility and activity of recombinant polypeptides. The invention includes a nucleic acid encoding a fusion polypeptide comprising an interleukin-1-like polypeptide and a polypeptide of interest and the method of using such a nucleic acid to produce recombinant fusion polypeptides.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: October 8, 1996
    Assignee: Celtrix Pharmaceuticals, Inc.
    Inventors: Desmond Mascarenhas, Yang Zhang, Pamela S. Olson, David R. Olsen, Pedro A. Carrillo