Minemyer v. B-Roc Reps., Inc., No. 07 C 1763, Slip Op. (N.D. Ill. Oct. 27, 2009) (Cole, Mag. J.)*
Judge Cole granted summary judgment of invalidity based upon the §102(b) on-sale bar and denied summary judgment as to invalidity based upon §102(b) public use and obviousness.
Plaintiff argued that its pipe coupler patent was entitled to the priority date of its provisional application because the provisional application disclosed in the drawings the tapered threads at issue, although they were not described in the specification. The Court held that figures showing tapered threads would be sufficient, but that the figures did not show tapered threads. Plaintiff alleged that enlargements of the figures showed a 1% taper. But the Court held that the original drawing did not “convey” the tapered threads with "reasonable clarity.” Even the enlargement showed “no true tapers.” Because the provisional application did not disclose the taper, the patent’s priority date was its filing date.
The Court held that plaintiff admitted he offered the patented couplers for sale more than one year before the filing date, also known as the critical date. Plaintiff also admitted both in interrogatory responses and at deposition that his invention had been reduced to practice at the time of the offer. Plaintiff claimed that the use was experimental, but the court held that the claim was not properly supported by evidence in plaintiff’s Local Rule 56.1 statement of material facts.
Public Use Bar
The Court denied summary judgment based upon the public use bar. The alleged prior art device was asserted against other claims in defendants’ invalidity contentions, but not against the claim at issue, claim 12. Furthermore, the evidence of the alleged prior art coupler was provided by a witness that was not disclosed in defendants’ Rule 26 disclosures or their interrogatory responses. He was first identified in a subpoena at the end of fact discovery.
Defendant’s obviousness arguments were based upon the same prior art as the public use bar prior art. So, summary judgment was not appropriate for similar reasons. Additionally, defendants arguments were cursory and did not even cite case law.
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