In Brief: Purechoice v. Honeywell

2008-1482 Purechoice v. HoneywellED/TX 06-cv-00244Judge T. John Ward Purechoice appeals from the judgment of Judge Ward construing certain claim terms of RE38,985 as ambiguous and the claims invalid for indefiniteness.  The patent relates to a remote environmental monitoring system that collects air quality data about a site.  We previously covered the case here, as did [...]

In Brief: Blackboard v. Desire2Learn

2008-1368 Blackboard v. Desire2LearnED/TX 9:06-CV-155Judge Ron Clark Cross-appeals involving Blackboard’s 6,988,138 patent. The jury found Desire2Learn infringed claims 36-38, also finding those claims valid.  The court found claims 1-35 invalid for indefiniteness.  The ’138 is also currently in reexams, with the PTO having preliminarily rejected claims 1-44. Oral argument is scheduled for Tuesday, March 31, [...]

“Air Quality” Renders Claims Invalid

2008-1482 Purechoice v. HoneywellED/TX 06-cv-244Judge T. John Ward Purechoice appeals from the judgment of Judge Ward construing certain claim terms of RE38,985 as ambiguous and the claims invalid for indefiniteness.  The patent relates to a remote environmental monitoring system that collects air quality data about a site. The terms at issue are "environmental air quality" [...]

Blackboard Loses Most Claims, Wins Millions And Injunction

2008-1368 Blackboard v. Desire2LearnED/TX 9:06CV155 Both parties appeal from the final judgment of Judge Ron Clark finding that claims 1-35 of Blackboard’s 6,988,138 patent are invalid (indefinite), but confirming the jury’s verdict that claims 36-38 are not invalid and infringed.  The jury also awarded Blackboard over $3 million in lost profits and royalties, and the [...]