Patents by Inventor Herbert Paul Lambert

Herbert Paul Lambert 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).

  • Simultaneous location of areas having different conductivities
    Patent number: 4046606
    Abstract: The process employs both silicon dioxide and silicon nitride layers used for selectively masking areas to be etched in order to allow a single photomask to be used for defining areas having different conductivities simultaneously, thereby eliminating problems caused by misregistry between photomasks.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: September 6, 1977
    Assignee: RCA Corporation
    Inventor: Herbert Paul Lambert