Patents by Inventor Adam Krotov

Adam Krotov 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: 5427356
    Abstract: The instant invention uses a ladder which attaches to a wheel-base type stabilizer which aids in rolling the object onto and off a roof or other elevated area. The ladder attaches to the wheel base stabilizer with two "U" shaped channels which receive two of the ladder rungs and the rungs are locked in place with two slip pins on the underside. At the top of the ladder is a leg which also has two "U" shaped channels which slip over the rungs of the ladder and are locked in place with two slip pins. A boom, with a mating square tube welded to it, receives the leg which is attached to the top of the ladder. A leg and wheel assembly are assembled into a second mating square tube welded to the other end of the boom and held in place with a slip pin.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: June 27, 1995
    Inventors: Adam Krotov, Sandra L. Krotov