Patents by Inventor Ralph C. Ohlbach

Ralph C. Ohlbach 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).

  • Conductive container
    Patent number: 4706438
    Abstract: Conductive container for electronic devices, constructed of paperboard having a conductive coating or layer or impregnant extending from the inside to the outside of the container, with a sandwiched thin metal foil in effective contact with the conductive material.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: November 17, 1987
    Assignee: Conductive Containers, Inc.
    Inventor: Ralph C. Ohlbach
  • Conductive container
    Patent number: 4684020
    Abstract: Conductive container for electronic devices, constructed of paperboard having a conductive coating or layer or impregnant extending from the inside to the outside of the container, with a sandwiched thin metal foil in effective contact with the conductive material.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: August 4, 1987
    Assignee: Conductive Container, Inc.
    Inventor: Ralph C. Ohlbach
  • For protecting printed circuit boards and other items against the ravages of a discharge of static electricity
    Patent number: 4293070
    Abstract: Shipping container and storage cartons for printed circuit boards, are composed entirely of paper board coated on inside surfaces with conductive carbon black particles to prevent an outside static electricity charge from passing through the container or carton.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: October 6, 1981
    Inventor: Ralph C. Ohlbach
  • Assembly protecting and inventorying printed circuit boards
    Patent number: 4211324
    Abstract: A stackable tray or container for assembly of or inventorying or transporting printed circuit board components, constructed of paper board coated on inside surfaces with conductive carbon black particles.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: July 8, 1980
    Inventor: Ralph C. Ohlbach
  • Shipping container for printed circuit boards and other items
    Patent number: 4160503
    Abstract: Shipping container especially for printed circuit boards, composed entirely of paper board coated on inside surfaces with conductive carbon black particles to prevent an outside static electricity charge from passing through the container.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: July 10, 1979
    Inventor: Ralph C. Ohlbach