Patents by Inventor Mei Wu

Mei Wu 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).

  • Method for inhibiting corrosion of carbon steel in contact with hydrofluoric acid and tetrahydrothiophene-1, 1-dioxide
    Patent number: 5324397
    Abstract: A method for inhibiting corrosion of carbon steel in contact with a mixture of hydrofluoric acid and tetrahydrothiophene-1,1-dioxide comprising raising the electrical potential of said structure such that the electrical potential of said structure is positive with respect to said solution containing hydrofluoric acid and tetrahydrothiophene-1,1-dioxide.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: June 28, 1994
    Assignee: Mobil Oil Corporation
    Inventor: Yiing-Mei Wu
  • Vitamin K-dependent carboxylase
    Patent number: 5268275
    Abstract: Isolated DNA encoding a vitamin K dependent carboxylase is disclosed. The carboxylase is selected from the group consisting of: (a) isolated DNA which encodes bovine or human vitamin K dependent carboxylase; (b) isolated DNA which hybridizes to isolated DNA of (a) above and which encodes a vitamin K dependent carboxylase; and (c) isolated DNA differing from the isolated DNAs of (a) and (b) above in nucleotide sequence due to the degeneracy of the genetic code, and which encodes a vitamin K dependent carboxylase. Also disclosed are vectors and host cells containing the aforesaid DNA, methods of using the same, and purified protein coded for by the aforesaid DNA.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: December 7, 1993
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Darrel W. Stafford, Sheue-Mei Wu
  • Method for inhibiting corrosion of carbon steel in contact with hydrofluoric acid and tetrahydrothiophene-1,1-dioxide
    Patent number: 5268127
    Abstract: The present invention provides a method for inhibiting corrosion of carbon steel in contact with a mixture of hydrofluoric acid and tetrahydrothiophene-1,1-dioxide comprising adding a corrosion inhibiting amount of an alkali metal halide to said mixture of hydrofluoric acid and tetrahydrothiophene-1,1-dioxide.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: December 7, 1993
    Assignee: Mobil Oil Corporation
    Inventor: Yiing-Mei Wu