Patents by Inventor Victor A. David

Victor A. David 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).

  • Enhanced gene expression in response to lactation signals
    Patent number: 5320952
    Abstract: An expression method for enhanced recombinant production of a desired protein due to the presence of lactation-signals is provided which comprises cells transformed with a DNA sequence having the desired protein coding sequence under the control of a bovine prolactin promoter and a bovine prolactin distal enhancer sequence. A preferred embodiment uses growth hormone sequences as the desired protein coding sequences. In this embodiment, feed-efficiency of milk-producing animals is improved.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: June 14, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan H. Deutch, Victor A. David, Julia B. Wolf
  • Molecular cloning and expression of neutral protease genes
    Patent number: 5130250
    Abstract: Neutral protease genes from Vibrio proteolyticus or Bacillus can be cloned and expressed in gram-negative microorganisms, such as E. coli or Serratia. The functional neutral protease enzyme is expressed.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: July 14, 1992
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan H. Deutch, Victor A. David
  • Molecular cloning and expression of a vibrio proteolyticus neutral protease gene
    Patent number: 4966846
    Abstract: Neutral protease genes from Vibrio proteolyticus or Bacillus can be cloned and expressed in gram-negative microorganisms, such as E. coli or Serratia. The functional neutral protease enzyme is expressed.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: October 30, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan H. Deutch, Victor A. David