Patents by Inventor Im J. Rangwalla

Im J. Rangwalla 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 of and apparatus for improved nitrogen inerting of surfaces to be electron beam irradiated
    Patent number: 5120972
    Abstract: Through the use of a hybrid or the combination of inexpensive relatively impure, and expensive pure, nitrogen purging at various locations of electron-beam processing of polymer and other coatings, high speed efficient processing can be obtained at reduced cost.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: June 9, 1992
    Assignee: Energy Sciences, Inc.
    Inventors: Im J. Rangwalla, Sam Nablo