Patents by Inventor Chengquan Zhao

Chengquan Zhao 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 CHARACTERISTIC OF CERTAIN TUMORS
    Publication number: 20020034739
    Abstract: Peptides that are characteristic of tumors of the steroid regulated organs are disclosed. The peptides are useful for the production of antibodies that may in turn be used to detect metastases of these tumors. The antibodies may also be used for purifying the peptides.
    Type: Application
    Filed: July 7, 1998
    Publication date: March 21, 2002
    Inventors: ROBERT I. LEHRER, CHENGQUAN ZHAO, BENJAMIN J. GLASGOW
  • Clavanins
    Patent number: 6040293
    Abstract: Novel microbial peptides called clavanins are of the formula[X'.sub.1 X.sub.2 B'.sub.3 X.sub.4 X.sub.5 ]U.sub.6 B.sub.7 X.sub.8 X.sub.9 B.sub.10 B.sub.11 X.sub.12 U.sub.13 Z.sub.14 X.sub.15 X.sub.16 B*.sub.17 U.sub.18 X.sub.19 U.sub.20 B.sub.21 X.sub.22 X.sub.23 ( 1)(SEQ ID NO:1 )including the salts, esters, amides and acylated forms thereofwherein X is a hydrophobic amino acid residue or modified form thereof;X' is a small or a hydrophobic amino acid residue or a modified form thereof;B is a basic amino acid residue or modified form thereof;B' is basic or a polar/large amino acid residue or modified form thereof; andB* is a basic or a hydrophobic amino acid residue or a modified form thereof;U is a small amino acid residue or modified form thereof;Z is a polar/large amino acid residue or modified form thereof, and wherein 1-5 amino acids is deleted from the N-terminus.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 21, 2000
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Chengquan Zhao, In-Hee Lee
  • Clavanins
    Patent number: 6010876
    Abstract: Novel microbial peptides called clavanins are of the formulaX'.sub.1 X.sub.2 B'.sub.3 X.sub.4 X.sub.5 U.sub.6 B.sub.7 X.sub.8 X.sub.9 B.sub.10 B.sub.11 X.sub.12 U.sub.13 Z.sub.14 X.sub.15 X.sub.16 B*.sub.17 U.sub.18 X.sub.19 U.sub.20 B.sub.21 X.sub.22 X.sub.23 ( 1)(SEQ ID NO: 1)including the salts, esters, amides and acylated forms thereofwherein X is a hydrophobic amino acid residue or modified form thereof;X' is a small or a hydrophobic amino acid residue or a modified form thereof;B is a basic amino acid residue or modified form thereof;B' is basic or a polar/large amino acid residue or modified form thereof; andB* is a basic or a hydrophobic amino acid residue or a modified form thereof;U is a small amino acid residue or modified form thereof;Z is a polar/large amino acid residue or modified form thereof.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: January 4, 2000
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Sylvia L. Harwig, deceased, Chengquan Zhao, In-Hee Lee
  • Clavaspirins
    Patent number: 5998374
    Abstract: Novel microbial peptides called clavaspirins are of the formula (SEQ ID NO:1)X'.sub.1 X.sub.2 B'.sub.3 X.sub.4 X.sub.5 U.sub.6 U.sub.7 X.sub.8 X.sub.9 B.sub.10 X'.sub.11 X.sub.12 U.sub.13 B.sub.14 X.sub.15 X.sub.16 B*.sub.17 B.sub.18 X.sub.19 U.sub.20 X.sub.21 X'.sub.22 X.sub.23 (1)including the salts, esters, amides and acylated forms thereofwherein X is a hydrophobic amino acid residue or modified form thereof;X' is a small or a hydrophobic amino acid residue or a modified form thereof;B is a basic amino acid residue or modified form thereof;B' is basic or a polar/large amino acid residue or modified form thereof;B* is a basic or a hydrophobic amino acid residue or a modified form thereof; andU is a small amino acid residue or modified form thereof.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 7, 1999
    Assignee: The Regents of University of California
    Inventors: Robert I. Lehrer, In-Hee Lee, Chengquan Zhao