Patents by Inventor Mark D. Gerhart

Mark D. Gerhart 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).

  • Packaging container
    Patent number: D326226
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: May 19, 1992
    Assignee: Scott Paper Company
    Inventor: Mark D. Gerhart
  • Bottle
    Patent number: D370409
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: June 4, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Gregory A. Lathrop, Mark D. Gerhart, David F. Gnadt, Kevin J. Markey, Frank E. Gonda, David S. Laubach
  • Bottle
    Patent number: D371740
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: July 16, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Gregory A. Lathrop, Mark D. Gerhart, David F. Gnadt, Arnold Brown, Frank E. Gonda, Harry H. Haubert
  • Combined bottle and closure
    Patent number: D372195
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: July 30, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mark D. Gerhart, Harry Haubert
  • Combined bottle and closure
    Patent number: D372199
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: July 30, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Gregory A. Lathrop, Mark D. Gerhart, David F. Gnadt, Kevin J. Markey, Frank E. Gonda, David S. Laubach