Patents Assigned to Pittsburgh Plastics Mfg., Inc.
  • Gel cushion insole
    Patent number: D555889
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: November 27, 2007
    Assignees: LRC Products Limited, Pittsburgh Plastics Mfg., Inc.
    Inventors: Judith C. Anders, Colin D. Williams, James E. Zona, Richard E. Matuke
  • Metatarsal fluid filled shoe insert
    Patent number: D341022
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: November 9, 1993
    Assignee: Pittsburgh Plastics, Mfg., Inc.
    Inventor: James E. Zona