Patents by Inventor David Ernest Rodriques

David Ernest Rodriques 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).

  • Carbon-nitrogen nanofiber compositions of specific morphology, and method for their preparation
    Publication number: 20020132117
    Abstract: Carbon-nitrogen nanofibers are prepared by contacting a gaseous mixture comprising hydrogen and a carbon-nitrogen compound such as pyridine with a cobalt-iron catalyst at a temperature in the range of about 500-1000° C. The nanofibers are characterized by a structure in which layers emanate from a core catalyst particle and are parallel to each other but not parallel to the length axis of the nanofibers.
    Type: Application
    Filed: March 19, 2001
    Publication date: September 19, 2002
    Applicant: General Electric Company
    Inventor: David Ernest Rodriques
  • Direct method for preparing doped polyaniline, product prepared thereby and resinous articles containing said product
    Publication number: 20010012884
    Abstract: Doped polyanilines are prepared by contacting aniline with an oxidizing agent such as ammonium peroxydisulfate in aqueous solution at a temperature of at most about 10° C. in the presence of at least one organic sulfonic acid, preferably an alkylbenzenesulfonic acid such as dodecylbenzenesulfonic acid.
    Type: Application
    Filed: March 30, 2001
    Publication date: August 9, 2001
    Inventors: Sundeep Kumar Dhawan, Subhas Chandra, Erode Subramanium Raja Gopal, Navjot Singh, David Ernest Rodriques, Michael Leslie Todt, James Ross Fishburn