• Karl Storz Endoscopy-America, Inc. v. Novadaq Technologies, Inc.All claims unpatentable
  PTAB · Mar 8, 2017 · IPR2015-01847 · APJ Daniel N Fishman · IPR · Final written decision

  Claims 1–17 are unpatentable: all are obvious over Yabe; claims 10, 12, and 14 are also anticipated by Krauter.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for patent owner

    “1. Level of Ordinary Skill Mr. Gunday testified, In my opinion, a person having ordinary skill in the relevant art at the time of the alleged invention is a person with a Bachelor of Science degree in Physics, Computer Engineering, Computer Science, or other similar degree, and two ([2]) to three (3) years of work experience relating to medical endoscopic imaging. Such a person would have had an understanding of, or experience in, designing, implementing, and using endoscopic imaging systems, including light sources and endoscopic video and image processing. Ex. 1011 ¶ 76. Mr. Jaggi agrees with Mr. Gunday’s opinion in this regard, adding only that degrees in “Electrical engineering or Engineering Physics” would each qualify as Mr. Gunday’s “other similar degree.” Ex. 2001 ¶¶ 53–54. We agree with and adopt the view of the parties regarding the level of ordinary skill in the art.” slip op. at 22

  • Expert testimonyPatent owner expert discountedDecided for patent owner

    “Initially, we note bodily incorporation of the features of the embodiments is not the test of obviousness; rather, the test lies in what is taught or suggested to the ordinarily skilled artisan by the proposed combination of embodiments of Yabe. See In re Merck & Co., 800 F.2d 1091, 1097 (Fed. Cir. 1986). Furthermore, “the [obviousness] analysis need not seek out precise teachings directed to the specific subject matter of the challenged claim, for a court can take account of the inferences and creative steps that a person of ordinary skill in the art would employ.” KSR, 550 U.S. at 418. “If a person of ordinary skill can implement a predictable variation, § 103 likely bars its patentability.” Id. at 417. Yabe discloses multiple embodiments and expressly discloses interchangeability of rotary (“surface-sequential-type”) filters as disclosed in Yabe’s second embodiment (Figure 2) and mosaic (“built-in”) filters as disclosed in Yabe’s first and third embodiments (Figures 1a and 10). Ex. 1007, 18:17–21. Yabe’s express disclosures outweigh the unsupported assertions of Patent Owner’s expert regarding the complexity of constructing the proposed combination of embodiments. “Combining two embodiments disclosed adjacent to each other in a prior art patent does not require a leap of inventiveness.” Boston Sci. Scimed, Inc. v. Cordis Corp., 554 F.3d 982, 991 (Fed. Cir. 2009). Therefore, we are persuaded, by a preponderance of the evidence, that the ordinarily skilled artisan would have had reason to combine the embodiments of Yabe, as proposed by Petitioner, “because it would serve the same purpose as the existing rotary filter/CCD arrangement and lead to predictable results.” See Pet. 20; see also KSR, 550 U.S. at 417.” slip op. at 28

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownOther

    “We are disinclined to adopt Patent Owner’s proposed construction of this phrase, as recited in claim 1, to require mathematical manipulation. Claim 1 recites “calculates” in a self-defining manner, specifically reciting calculating the image signals “by minimizing the contribution from signals produced by the image sensor in response to red illumination light.” Thus, claim 1 is clear on its face that the calculation to be performed is by minimizing the contribution from red light. Therefore, our analysis shifts to determining the meaning of “minimizing” as recited in claim 1. The ’151 patent discloses a variety of embodiments for “minimizing” the contribution of red light.5 For example, in support of the Patent Owner’s 5 Additionally we observe that “minimizing” appears only once in the ’151 patent—in claim 1 (and, thereby, also in its dependent claims 2–9). construction, the ’151 patent does disclose exemplary embodiments that minimize red light contribution utilizing mathematical manipulations including, for example, CMYG filter computations that are “considered to be well known to those of ordinary skill in the art” (Ex. 1001, 4:66–7:59) and averaging blue and green signals to “compute” a cyan signal (id. at 4:21–24). The ’151 patent, however, also specifically recites, Because the passbands of the red mosaic filters do not significantly overlap with the pass bands of the other filters for a short wavelength imaging mode, the contribution of the image signals due to red illumination light can be reduced or largely eliminated by not assigning the image signals produced by image sensor pixels that are sensitive to red light to their corresponding display pixels. Id. at 4:5–12 (emphasis added). The ’151 patent further states “a short wave-length image (or the color components of such an image) can be computed from a subset of image sensor signals (i.e. excluding the signal data from red light).” Id. at 8:29–32 (emphasis added). Thus, the ’151 patent also encompasses the contribution of red light in the image being” slip op. at 12

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner

    “Although the ’151 patent does not address “analog” or “digital” in reference to “memory,” we agree with Patent Owner, based primarily on the cross-examination testimony of Petitioner’s expert, Mr. Gunday, that the ordinarily skilled artisan at the time of the ’151 patent filing would have understood “memory,” in the context of the ’151 patent, to be referring to digital memory rather than analog buffers. The signals stored in Krauter’s analog buffers are transitory, analog signals propagating from circuits that calculate a value, through the analog buffer, to an analog input of a display monitor. We are persuaded that an ordinarily skilled artisan would not have considered such analog buffers to be a memory in the context of the ’151 patent. Thus, we determine “memory,” as recited in claim 1, means any digital memory capable of storing image signals that minimize the contribution of red light.” slip op. at 17

  Patent outcomesUS 7,420,151 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,420,151

Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.