Patents by Inventor Kari I. Kivirikko

Kari I. Kivirikko 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: 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
  • Publication number: 20030032143
    Abstract: Polymerized type I and/or III collagen based compositions for medical use as adhesives and sealants and preparation thereof are described. Prior to polymerization, the collagen monomers are prepared recombinantly whereby chemical modifications of the collagen are not needed to form such monomers. The type I and/or III collagen compositions are useful as medical adhesives for bonding soft tissues or in a sealant film for a variety of medical uses. In a further aspect of the present invention, the polymerized type I and/or III collagen composition includes agents which induce wound healing or provide for additional beneficial characteristics desired in a tissue adhesive and sealant.
    Type: Application
    Filed: October 4, 2002
    Publication date: February 13, 2003
    Inventors: Thomas B. Neff, Kari I. Kivirikko
  • Publication number: 20020177203
    Abstract: The present invention relates to novel isoforms of the &agr; subunit of prolyl 4-hydroxylase, polynucleotide sequences encoding these novel proteins, and methods for making such proteins.
    Type: Application
    Filed: February 6, 2002
    Publication date: November 28, 2002
    Inventors: Kari I. Kivirikko, Taina Pihlajaniemi, Tarja Inkeri Helaakoski, Pia Pauliina Annunen, Ritva Kaarina Nissi, Minna Kristiina Nokelainen
  • Publication number: 20020142391
    Abstract: Methods of making collagen with hosts, and vectors that express collagen, and collagen post-translation enzymes are disclosed. Collagen post-translation enzymes include prolyl-4-hydroxylase, lysyl hydroxylase, lysyl oxidase, C-proteinase, and N-proteinase, and these enzymes increase the yield of properly folded, recombinant collagen in non-mammalian hosts. The collagens produced by these methods, hosts, and vectors include both homotrimer and heterotrimer collagen made from single or multiple collagen genes, respectively.
    Type: Application
    Filed: December 19, 2001
    Publication date: October 3, 2002
    Inventors: Kari I. Kivirikko, Taina Pihlajaniemi
  • Publication number: 20020098578
    Abstract: The invention is transfected cells, substantially all of which contain at least one human collagen gene and express fibrillar collagen molecules derived using methods for synthesizing collagen and collagen fibrils in said cell lines, and methods for treatment of disorders in humans using said collagen derived from said stable cell lines.
    Type: Application
    Filed: February 22, 1999
    Publication date: July 25, 2002
    Inventors: DARWIN J. PROCKOP, LEENA ALA-KOKKO, ANDRZEJ FERTALA, ALEKSANDER SIERON, KARI I. KIVIRIKKO, AMY GEDDIS, TAINA PIHLAJANIEMI
  • Patent number: 5928922
    Abstract: The present invention relates to novel isoforms of the .alpha. subunit of prolyl-4-hydroxylase, polynucleotide sequences encoding these novel proteins, and methods for making such proteins.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: July 27, 1999
    Assignees: Academy of Finland, Fibrogen, Inc.
    Inventors: Kari I Kivirikko, Taina Pihlajaniemi, Tarja Inkeri Helaakoski, Pia Pauliina Annunen, Ritva Kaarina Nissi, Minna Kristiina Nokelainen
  • Patent number: 5925736
    Abstract: The invention provides novel methods and compositions for the treatment of immune system-mediated arthritis, including rheumatoid arthritis. The subject compositions comprise one or more different types of collagen or collagen derivatives and a mucosa binding structure. Specific combinations of collagen and/or collagen derivatives may be used to treat specific types of arthritis. The collagen(s) and/or collagen(s) derivatives used in the subject compositions may be either obtained from natural sources or produced by recombinant genetic engineering techniques by chemical modification. Another aspect of the invention is to provide methods for treating various types of arthritis by administering an effective amount of the subject collagen-containing compositions. The methods of the invention involve the oral administration of a collagen or collagens found in a specific tissue, e.g.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: July 20, 1999
    Assignee: FibroGen, Inc.
    Inventors: Thomas Neff, George Martin, Karl A. Piez, Taina Pihlajaniemi, Kari I. Kivirikko
  • Patent number: 5593859
    Abstract: The invention is transfected cells, substantially all of which contain at least one human collagen gene and express fibrillar collagen molecules derived using methods for synthesizing collagen and collagen fibrils in said cell lines, and methods for treatment of disorders in humans using said collagen derived from said stable cell lines.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: January 14, 1997
    Assignee: Thomas Jefferson University
    Inventors: Darwin J. Prockop, Leena Ala-Kokko, Andrzej Fertala, Aleksander Sieron, Kari I. Kivirikko, Amy Geddis, Taina Pihlajaniemi
  • Patent number: 5405757
    Abstract: The invention is stably transfected cells, substantially all of which contain at least one human collagen gene and express fibrillar collagen molecules derived using methods for synthesizing collagen and collagen fibrils in said cell lines, and methods for treatment of disorders in humans using said collagen derived from said stable cell lines.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: April 11, 1995
    Assignee: Thomas Jefferson University
    Inventors: Darwin J. Prockop, Leena Ala-Kokko, Andrzej Fertala, Aleksander Sieron, Kari I. Kivirikko, Amy Geddis
  • Patent number: 5206343
    Abstract: The invention relates to compounds of the formula I ##STR1## in which A denotes an optionally substituted radical from the series comprising alkyl, acyl, cycloalkyl, aryl and heteroaryl; Cyc represents an optionally substituted heterocyclic carbonyl compound; D represents NH, NCH.sub.3, O or CH.sub.2 ; E represents CHOH, CO, SO or optionally N-substituted C.dbd.NH; F represents O, NH, NCH.sub.3 or a bond; R.sup.4 denotes an optionally substituted radical from the series comprising alkyl, cycloalkyl, aryl and heteroaryl; and R.sup.8 denotes hydrogen or optionally substituted alkyl, to a process for the preparation thereof, and to the use thereof as inhibitors of prolyl hydroxylase.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: April 27, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Stephan Henke, Dietrich Brocks, Volkmar Gunzlen-Pukall, Kari I. Kivirikko, Raili M. H. Myllyla