Whenever a claim of a patent is invalid, an action may be maintained for the infringement of a claim of the patent which may be valid. The patentee shall recover no costs unless a disclaimer of the invalid claim has been entered at the Patent and Trademark Office before the commencement of the suit.

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Terms Used In 35 USC 288

  • patentee: includes not only the patentee to whom the patent was issued but also the successors in title to the patentee. See 35 USC 100