Saunders Group, Inc. v. Comfortrac, Inc.

The Saunders Group, Inc., brought this patent infringement action in the United States District Court for the Eastern District of Virginia, Docket No. 1:05cv69. Saunders alleged that the defendants are liable for infringement of U.S. Patent No. 6,899,690 (“the ’690 patent”). The district court granted summary judgment of noninfringement on the ground that the asserted independent claims of the ’690 patent require, as one of the limitations of each of those claims, the presence of at least one pressure activated seal, a limitation that is not found in the accused devices. Saunders now appeals. We hold that the district court’s claim construction was erroneous, and we therefore reverse the grant of summary judgment and remand for further proceedings.

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