Illinois company sues Otter over alleged patent infringement

FORT COLLINS — In what might be a turnabout in the world of protecting patents, Fort Collins-based Otter Products LLC, which often has had to file suit to protect its patents, has been sued by an Illinois company that contends the opposite.
Voltstar Technologies Inc. of Barrington, Illinois, claims in a lawsuit filed in U.S. District Court in Colorado that Otter is violating patents that it controls for compact chargers useful for charging cell phones.
The lawsuit claims that Otter has engaged in the “unauthorized manufacture, use, sale, offer to sell and importation … of products” that Voltstar claims under U.S.…
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