Patents by Inventor Samantha Luu

Samantha Luu 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).

  • Amidases, nucleic acids encoding them and methods for making and using them
    Publication number: 20060259993
    Abstract: This invention provides amidases, polynucleotides encoding the amidases, methods of making and using these polynucleotides and polypeptides. In one aspect, the invention provides enzymes having secondary amidase activity, e.g., having activity in the hydrolysis of amides, including enzymes having peptidase, protease and/or hydantoinase activity. In alternative aspects, the enzymes of the invention can be used to used to increase flavor in food (e.g., enzyme ripened cheese), promote bacterial and fungal killing, modify and de-protect fine chemical intermediates, synthesize peptide bonds, carry out chiral resolutions, hydrolyze Cephalosporin C. The enzymes of the invention can be used to generate 7-aminocephalosporanic acid (7-ACA) and semi-synthetic cephalosporin antibiotics, including caphalothin, cephaloridine and cefuroxime. The enzymes of the invention can be used as antimicrobial agents, e.g., as cell wall hydrolytic agents.
    Type: Application
    Filed: January 28, 2003
    Publication date: November 16, 2006
    Inventors: Nelson Barton, David Weiner, William Greenberg, Samantha Luu, Kristine Chang, Elizabeth Waters
  • Enzymes having secondary amidases activity and methods of use thereof
    Publication number: 20040023257
    Abstract: This invention provides amidases, polynucleotides encoding the amidases, methods of making and using these polynucleotides and polypeptides. In one aspect, the invention provides enzymes having secondary amidase activity, e.g., having activity in the hydrolysis of amides, including enzymes having peptidase, protease and/or hydantoinase activity. In alternative aspects, the enzymes of the invention can be used to used to increase flavor in food (e.g., enzyme ripened cheese), promote bacterial and fungal killing, modify and de-protect fine chemical intermediates, synthesize peptide bonds, carry out chiral resolutions, hydrolyze Cephalosporin C. The enzymes of the invention can be used to generate 7-aminocephalosporanic acid (7-ACA) and semi-synthetic cephalosporin antibiotics, including caphalothin, cephaloridine and cefuroxime. The enzymes of the invention can be used as antimicrobial agents, e.g., as cell wall hydrolytic agents.
    Type: Application
    Filed: January 28, 2003
    Publication date: February 5, 2004
    Applicant: Diversa Corporation
    Inventors: Nelson R. Barton, David Paul Weiner, William Greenberg, Samantha Luu, Kristine Chang, Elizabeth Waters