Patents by Inventor Richard Dewayne Daugherty

Richard Dewayne Daugherty 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).

  • Process for the preparation of alkylhalosilanes
    Patent number: 5880307
    Abstract: A process for the use of water granulated silicon in the preparation of alkylhalosilanes. The process comprises contacting an alkyl halide described by formula RX, with a particulate water granulated silicon containing greater than 0.5 to about 5.0 weight percent iron, in the presence of a catalyst composition comprising copper, at a temperature within a range of about 250.degree. C. to 350.degree. C. where R is selected from the group consisting of alkyls comprising one to about four carbon atoms and X is a halogen.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 9, 1999
    Assignee: Dow Corning Corporation
    Inventors: Richard Dewayne Daugherty, Steven Kerry Freeburne, Paul Jacques Marion, Oliver K. Wilding, Jr.