Patents by Inventor Wes Piotrowski

Wes Piotrowski 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).

  • Orthosis for assistance in walking
    Patent number: 5188584
    Abstract: An orthosis for assistance in walking includes a pair of flexible risers and a flexible pelvic band. Each time a leg moves forward the pelvic band is twisted and the risers are bent, thereby storing energy. At the end of the step the pelvic band and the risers tend to resume undistorted configuration, and this thrusts the opposite foot forward. An improved hip joint is also disclosed for use in combination with such risers and pelvic band. The joint has a lock plate which may be locked to a riser and also to a leg brace connected thereto.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: February 23, 1993
    Assignee: Petrofsky Research, Inc.
    Inventors: Jerrold S. Petrofsky, Wes Piotrowski, Jannike Petrovska
  • Orthosis for assistance in walking
    Patent number: 5054476
    Abstract: An orthosis for assistance in walking includes a pair of flexible risers and a flexible pelvic band. Each time a leg moves forward the pelvic band is twisted and the risers are bent, thereby storing energy. At the end of the step the pelvic band and the risers tend to resume undistorted configuration, and this thrusts the opposite foot forward. An improved hip joint is also disclosed for use in combination with such risers and pelvic band. The joint has a lock plate which may be locked to a riser and also to a leg brace connected thereto.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: October 8, 1991
    Assignee: Petrofsky Research, Inc.
    Inventors: Jerrold S. Petrofsky, Wes Piotrowski, Jannike Petrovska
  • Orthosis for assistance in walking
    Patent number: 4969452
    Abstract: An orthosis for assistance in walking includes a pair of flexible risers and a flexible pelvic band. Each time a leg moves forward the pelvic band is twisted and the risers are bent, thereby storing energy. At the end of the step the pelvic band and the risers tend to resume undistorted configuration, and this thrusts the opposite foot forward. An improved hip joint is also disclosed for use in combination with such risers and pelvic band. The joint has a lock plate which may be locked to a riser and also to a leg brace connected thereto.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: November 13, 1990
    Assignee: Petrofsky Research, Inc.
    Inventors: Jerrold S. Petrofsky, Wes Piotrowski, Jannike Petrovska