Jury's finding under doctrine of equivalents reversed
Energy Transportation Group, Inc. v. Sonic Innovations, Inc., et al., C.A. No. 05-422-GMS, June 7, 2011.
Sleet, C. J. Defendants’ motion for judgment as a matter of law of noninfringement and invalidity and for a new trial granted in part and denied in part. The jury’s finding of infringement under the doctrine of equivalents was reversed as to two claims of one of the patents-in-suit due to prosecution history estoppel. The jury’s finding of validity and infringement as to the other patent-in-suit was preserved. The defendants’ request for a new trial on the issues of infringement and invalidity was denied. Plaintiff’s motion for pre-judgment and post-judgment interest was granted. All other post-trial motions were denied.
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