Patents by Inventor Mark P. Legenstein

Mark P. Legenstein 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).

  • Patent number: 7681248
    Abstract: A rolling knee support comprises a base with a detachable knee pad. The base includes a knee pad receiving portion and roller attachment portions. Each of the roller attachment portions has a caster mounted thereto. The knee pad is detachably mounted to the knee pad receiving portion. A strap extends from the rolling knee support for attachment of the rolling knee support to a wearer's knee area. An outer cover may be placed on the knee pad when the knee pad is detached from the rolling knee support.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 23, 2010
    Assignee: Knee Blades LLC
    Inventor: Mark P. Legenstein
  • Patent number: 5870774
    Abstract: A roller knee pad having a hard shell supported by a plurality of swiveling casters. The inside of the hard shell is lined with a cushioning material to absorb shock when kneeling and to cushion against minor shape disparities between the wearers knees and the inside of the hard shell. A plate is attached to the exterior portion of the hard shell to provide mounting locations for a plurality of casters. The casters are capable of swiveling through a 360 degree range. Ideally three casters are used to support the knee pad allowing the pad to be self supporting and allowing the wearer to easily balance on the knee pad without exerting undue pressure on his/her toes. A rolling knee pad is strapped to each of the wearers knees allowing the user to kneel without concern about placement of the knee pad. Once the knee pads are engaged to the floor surface, the wearer may move laterally in any direction while still on his/her knees.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: February 16, 1999
    Inventor: Mark P. Legenstein