Patents by Inventor Mark A. Holman

Mark A. Holman 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).

  • Funnel tool to remove oil filters
    Patent number: 4867017
    Abstract: A tool for use when changing the oil filter of an engine and refilling or putting oil into the engine. The tool is generally funnel shaped, having an internal surface which frictionally engages the oil filter after its seal has been broken. The tool has an extended portion of a greater diameter than the filter to catch any oil which escapes as the filter is removed. The escaping oil is channeled to the outlet portion of the funnel, to which a plastic tubing may be positioned to remove the escaping oil. The tool may then be used as a funnel to fill the engine and complete the oil changing process.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: September 19, 1989
    Inventor: Mark A. Holman