Patents by Inventor Shelby D. Worley

Shelby D. Worley 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 disinfecting aqueous medium with N,N'-dihalo-2-imidazolidinones
    Patent number: 4767542
    Abstract: N-chloro and N-bromo derivatives of 2-imidazolidinones having substituents at the 4 and 5 positions of the ring are described. More particularly, there are described dichloro, dibromo-, and chlorobromo- derivatives of 2-imidazolidinones having at least three substituents selected from alkyl, alkoxy, hydroxy and substituted phenyl, e.g., para-substituted phenyl, at the 4 and 5 positions on the ring. These N-halo compounds are biocides, e.g., bactericides, and are useful as disinfectants and sanitizers.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: August 30, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Shelby D. Worley
  • N,N'dihalo-2-imidazolidinones
    Patent number: 4681948
    Abstract: N-chloro and N-bromo derivatives of 2-imidazolidinones having substituents at the 4 and 5 positions of the ring are described. More particularly, there are described dichloro, dibromo-, and chlorobromo-derivatives of 2-imidazolidinones having at least three substituents selected from alkyl, alkoxy, hydroxy and substituted phenyl, e.g., parasubstituted phenyl, at the 4 and 5 positions on the ring. These N-halo compounds are biocides, e.g., bactericides, and are useful as disinfectants and sanitizers.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: July 21, 1987
    Assignee: PPG Industries, Inc.
    Inventor: Shelby D. Worley
  • Method for treating air-cooling system's aqueous medium
    Patent number: 4659484
    Abstract: Recirculating water used in closed cycle air-conditioning systems is treated with a 3-chloro-2-oxazolidinone derivative, e.g., 3-chloro-4,4-di(C.sub.1 -C.sub.4)alkyl-2-oxazolidinones such as 3-chloro-4,4-di-methyl-2-oxazolidinone, to prevent the growth of Legionella pneumophila therein.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: April 21, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Shelby D. Worley, Larry J. Swango