www.fdanews.com/articles/134711-clearcorrect-sued-by-invisalign-maker
ClearCorrect Sued by Invisalign Maker
March 2, 2011
Houston orthodontics maker ClearCorrect LLC and Align Technology Inc. are headed back to court. ClearCorrect sued San Jose, Calif.-based Align in February 2009 claiming Align’s patents were invalid.
Houston Business Journal
Houston Business Journal