OPINION
STAPLETON, District Judge:
The patent-in-suit, United States Patent No. 3,799,532 ("the '532 patent"), claims a connector used to join the ends of coil springs forming the media of a filter unit. The holder of this patent is Komline-Sanderson Engineering Corporation ("K-S"). It here asserts that Ingersoll-Rand Company ("I-R") is selling rotary drum vacuum filters utilizing coil spring connectors which infringe the '532 patent.
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