Patents Assigned to Handy-Stone Corporation
  • Edging block
    Patent number: D378702
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: April 1, 1997
    Assignee: Handy-Stone Corporation
    Inventors: Peter J. Blomquist, Todd P. Strand
  • Retaining wall block
    Patent number: D391376
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: February 24, 1998
    Assignee: Handy-Stone Corporation
    Inventors: Todd P. Strand, Peter J. Blomquist
  • Retaining wall block
    Patent number: D429004
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: August 1, 2000
    Assignee: Handy-Stone Corporation
    Inventors: Todd P. Strand, Peter J. Blomquist
  • Concrete block
    Patent number: D430680
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: September 5, 2000
    Assignee: Handy-Stone Corporation
    Inventors: Peter J. Blomquist, Todd P. Strand