Patents by Inventor Ray S. Chang

Ray S. Chang 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).

  • Peptides that bind to the erythropoietin receptor
    Patent number: 5986047
    Abstract: Peptides of 10 to 40 or more amino acid residues in length and having the sequence X3X4X5GPX6TWX7X8 (SEQ ID NO:252) where each amino acid is indicated by standard one letter abbreviation; X3 is C; X4 is R, H, L, or W; X.sub.5 is M, F, or I; X6 is independently selected from any one of the 20 genetically coded L-amino acids; X7 is D, E, I, L, or V; and X8 is C, which bind and activate the erythropoietin receptor (EPO-R) or otherwise act as an EPO agonist, and methods for their use.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: November 16, 1999
    Assignee: Affymax Technologies N.V.
    Inventors: Nicholas C. Wrighton, William J. Dower, Ray S. Chang, Arun K. Kashyap
  • Methods of administering peptides that bind to the erythropoietin receptor
    Patent number: 5830851
    Abstract: Peptides of 10 to 40 or more amino acid residues in length and having the sequence X.sub.3 X.sub.4 X.sub.5 GPX.sub.6 TWX.sub.7 X.sub.8 (SEQ ID NO:252) where each amino acid is indicated by standard one letter abbreviation; X.sub.3 is C; X.sub.4 is R, H, L, or W; X.sub.5 is M, F, or I; X.sub.6 is independently selected from any one of the 20 genetically coded L-amino acids; X.sub.7 is D, E, I, L, or V; and X.sub.8 is C, which bind and activate the erythropoietin receptor (EPO-R) or otherwise act as an EPO agonist, and methods for their use.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 3, 1998
    Assignee: Affymax Technologies N.V.
    Inventors: Nicholas C. Wrighton, William J. Dower, Ray S. Chang, Arun K. Kashyap
  • Compounds and peptides that bind to the erythropoietin receptor
    Patent number: 5773569
    Abstract: Peptides of 10 to 40 or more amino acid residues in length and having the sequence X.sub.3 X.sub.4 X.sub.5 GPX.sub.6 TWX.sub.7 X.sub.8 (SEQ ID NO:252) where each amino acid is indicated by standard one letter abbreviation; X.sub.3 is C; X.sub.4 is R, H, L, or W; X.sub.5 is M, F, or I; X.sub.6 is independently selected from any one of the 20 genetically coded L-amino acids; X.sub.7 is D, E, I, L, or V; and X.sub.8 is C, which bind and activate the erythropoietin receptor (EPO-R) or otherwise act as an EPO agonist, and methods for their use.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 30, 1998
    Assignee: Affymax Technologies N.V.
    Inventors: Nicholas C. Wrighton, William J. Dower, Ray S. Chang, Arun K. Kashyap, Linda K. Jolliffe, Dana Johnson, Linda Mulcahy