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John N. Helbert

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  • Eatontown, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of delineating a desired integrated circuit pattern upon a c...
    • Patent number 4,304,840
    • Issue date Dec 8, 1981
    • The United States of America as represented by the Secretary of the Army
    • John N. Helbert
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Method of patterning a substrate
    • Patent number 4,233,394
    • Issue date Nov 11, 1980
    • The United States of America as represented by the Secretary of the Army
    • John N. Helbert
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY