Brian M. Hoffmann has been granted 12 US patents while listed as an inventor at Hunter Douglas . The first was granted in 1994 and the most recent in July 2012. Brian M. Hoffmann ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Brian M. Hoffmann in Westminster, CO, US.
Patents per Year Patents granted per year, 1994 to 2012 Bar chart with a peak of 2 patents in 2009. peak 2 1994: 1 patents 1994 1995: 1 patents 1997: 1 patents 1997 2001: 1 patents 2002: 1 patents 2002 2004: 1 patents 2007: 1 patents 2007 2009: 2 patents 2010: 1 patents 2010 2011: 1 patents 2012: 1 patents 2012
Issued Patents All Time
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Showing 1–12 of 12 patents
Patent # Title Co-Inventors Date
8210227 Cord lock with improved wear surface for an architectural covering Michael S. Goldberg 2012-07-03
8006736 Skew adjustment device for coverings for architectural openings Stephen P. Smith , James L. Miller 2011-08-30
7832450 Lift cord system for retractable covering Clark Brace , Donald J. Clark , Ronald Holt 2010-11-16
7617858 Skew adjustment device for coverings for architectural openings Stephen P. Smith , James L. Miller 2009-11-17
7500505 Roller stop for coverings for architectural openings Stephen P. Smith 2009-03-10
7240715 Limit stop for coverings for architectural openings — 2007-07-10
6782938 Control and suspension system for a covering for architectural openings Wendell B. Colson 2004-08-31
6435252 Control and suspension system for a covering for architectural openings Wendell B. Colson 2002-08-20
6289964 Control and suspension system for a covering for architectural openings Wendell B. Colson 2001-09-18
5647421 Dual shape assembly Gerald W. Huntley , Joseph E. Kovach 1997-07-15
5392832 Covering assembly for architectural openings Wendell B. Colson , James M. Anthony , Brad H. Oberg , Eric N. Williams , Paul G. Swiszcz +1 more 1995-02-28
5287908 Window covering assembly Wendell B. Colson , Eric N. Williams 1994-02-22