Patents by Inventor Joachim L. Weickmann

Joachim L. Weickmann 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).

  • DNA encoding (ASP 113) and (LYS 46, ASP 113) thaumatin I
    Patent number: 5464770
    Abstract: Genes are disclosed which are capable of directing the synthesis in a selected host microorganism of two thaumatin I analogues both of which have the amino acid sequence of natural thaumatin I including an aspartate amino acid residue in the 113th position from the amino terminal end of the polypeptide and one of which additionally has a lysine amino acid residue substituted for asparagine in the 46th position from the amino terminal end.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: November 7, 1995
    Assignee: Xoma Corporation
    Inventors: Joachim L. Weickmann, Pradip Ghosh-Dastidar
  • DNA encoding (Lys.sup.46, Asp.sup.97, Asp.sup.113) and (Lys.sup.46, Asp.sup . .sup.137) thaumatin I polypeptides
    Patent number: 5221624
    Abstract: Genes are disclosed which are capable of directing the synthesis in a selected host microorganism of thaumatin I polypeptides having improved taste characteristics characterized by having the amino acid sequence of natural thaumatin I including a lysine amino acid residue substituted for asparagine in the 46th position from the amino terminal end, an aspartate amino acid residue substituted for asparagine in the 113th position from the amino terminal end and an aspartate amino acid residue substituted for lysine at either the 97th or 137th residue from the amino terminal end.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: June 22, 1993
    Assignee: International Genetic Engineering, Inc.
    Inventors: Lindley C. Blair, Raju K. Koduri, Jar-How Lee, Joachim L. Weickmann