John E. Oltman

Person

  • Mount Horeb, WI, US

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Rechargeable Battery Assemblies and Methods of Constructing Recharg...

    • Publication number 20110086256
    • Publication date Apr 14, 2011
    • ETYMOTIC RESEARCH INC.
    • Stephen D. Julstrom
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Hearing aid

    • Publication number 20040240695
    • Publication date Dec 2, 2004
    • Sarnoff Corporation
    • Marvin A. Leedom
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Hearing aid

    • Publication number 20040081328
    • Publication date Apr 29, 2004
    • Sarnoff Corporation
    • Marvin A. Leedom
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Air depolarized electrochemical button cell

    • Publication number 20010001369
    • Publication date May 24, 2001
    • Robert Adey
    • H01 - BASIC ELECTRIC ELEMENTS