Patents by Inventor Robert A. Romine

Robert A. Romine 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 the addition of vulcanized waste rubber to virgin rubber products
    Patent number: 5597851
    Abstract: The invention is a method of using enzymes from thiophyllic microbes for selectively breaking the sulfur rubber cross-link bonds in vulcanized rubber. The process is halted at the sulfoxide or sulfone step so that a devulcanized layer is reactive with virgin rubber.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: January 28, 1997
    Assignee: Battelle Memorial Institute
    Inventors: Robert A. Romine, Lesley J. Snowden-Swan