Patents by Inventor Ralph B. Di Palma

Ralph B. Di Palma 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).

  • Apparatus for use in a battery
    Patent number: 5523183
    Abstract: A battery electrode is provided comprising a porous, pleated metal structure, preferably comprising nickel as its substrate.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: June 4, 1996
    Assignee: Pall Corporation
    Inventors: Paul C. Koehler, Stephen Geibel, Ralph B. Di Palma
  • Composite separator/absorbent
    Patent number: 4220693
    Abstract: An electrochemical cell having a thin separator film such as grafted polypropylene thermally adhered, at limited sites, to a synthetic heat sealable electrolyte absorbent.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: September 2, 1980
    Assignee: P. R. Mallory & Co. Inc.
    Inventors: Ralph B. Di Palma, Anthony Loh, Jr.