Speaker Craft - Opinions About SpeakerCraft - Legal Action

Legal Action

In 1995, Dana Innovations (Sonance) sued SpeakerCraft for infringement of patents on a method of retrofitting a wall to mount speakers. The speaker mounting system Sonance claimed to have patented was in fact largely invented by the SpeakerCraft partner Ken Humphreys as is evidenced by his name as an inventor. This invention is composed of a bracket attached by screws through the wall to the speaker support. The speaker is then wedged between the bar and the support surface in a hole in the wall, resulting in the speaker being flush-mounted to the wall. SpeakerCraft moved for a summary judgment of invalidity. The district court of California held that the patents were invalid because they were anticipated by an in-wall speaker offered by Boston Acoustics Inc. more than a year prior to the application dates of each patent. The U.S. Court of Appeals held that the patents were not anticipated by the Boston Acoustics product and reversed the district court’s decision and remanded the case for further proceedings. The circuit court affirmed the district court’s decision.

SpeakerCraft then developed Mounting System 540040012, which eliminated the need for the separate bracket used in the Sonance design.

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