Kilopass Technology, Inc. v. Sidense Corp.

82 F. Supp. 3d 1154, 2015 U.S. Dist. LEXIS 30650, 2015 WL 1065883
CourtDistrict Court, N.D. California
DecidedMarch 11, 2015
DocketCase No. 10-cv-02066-SI
StatusPublished
Cited by12 cases

This text of 82 F. Supp. 3d 1154 (Kilopass Technology, Inc. v. Sidense Corp.) is published on Counsel Stack Legal Research, covering District Court, N.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Kilopass Technology, Inc. v. Sidense Corp., 82 F. Supp. 3d 1154, 2015 U.S. Dist. LEXIS 30650, 2015 WL 1065883 (N.D. Cal. 2015).

Opinion

ORDER RE: ATTORNEYS’ FEES CALCULATION

SUSAN ILLSTON, United States District Judge

Currently pending before the Court is Sidense’s supplemental motion regarding attorneys’ fees calculation. Having considered the arguments of the parties and the papers submitted, and for good cause shown, the Court rules as follows.

BACKGROUND

The Court has provided a detailed factual background of this case in its order from August 12, 2014. Docket No. 427. Therefore, the Court limits its background discussion to the procedural history and a description of the contingency fee agreements at issue.

1. Procedural History

On May 14, 2010, Kilopass filed the present action against Sidense asserting infringement of the ’751 patent.1 Docket No. 1. On June 18, 2010, Kilopass filed a first amended complaint adding allegations of infringement of the ’757 and ’540 patents. Docket No. 6. On October 14, 2010, Kilopass filed a second amended complaint. Docket No. 38. On December 13, 2010, the Court granted in part and denied in part Sidense’s motion to dismiss the second amended complaint, leaving six causes of action in the case: three patent infringement claims asserting infringement of the ’751, ’757, and ’540 patents, one false advertisement and disparagement claim, one intentional interference with prospective economic relations claim, and one unfair competition claim. Docket No. 50; see also Docket No. 234 (Third Amended Complaint).

In its infringement contentions, Kilopass accused Sidense of infringing claims 1, 3, 5, 6, 9,12, and 14 of the ’751 patent, claims 1, 2, 5, 7, 8, 13, and 14 of the ’757 patent, and claims 1, 3, 5, and 6 of the ’540 patent. Docket No. 420, Durie Decl. Ex. 12 at A6308. Kilopass’s infringement contentions included allegations of both literal infringement and infringement under the doctrine of equivalents. Id. at A6307. With respect to the “column bitlines and row wordlines” claim limitation, the contentions asserted that the accused products merely “switch[] the terms ‘word-lines’ and ‘bitlines’ to create an artificial distinction. Columns and rows are a mat[1160]*1160ter of perspective only.” Id. at A6811. With respect to the “first and second doped semiconductor region” claim limitation, the contentions asserted the “channel stop” theory of infringement that was contained in Morrison & Foerster’s preliminary analysis. Kilopass asserted that “the STI [Shallow Trench Isolation] is the equivalent of the first doped region. The function of the first doped region is to provide a channel stop. The way it functions is to prevent current from the channel to flow in the area of the STI. The result is that the end of the channel is defined. Sidense’s STI performs substantially the same function, functions in substantially the same way, and achieves the [sic ] substantially the same result.” Id. at A6313. Kilopass also asserted that the first doped semiconductor region limitation was literally present in the accused device because the device’s STI “is literally a first doped region forming the channel stop.” Id.

The Court held a claim construction hearing on August 1 and 2, 2011. Kilopass originally argued at the claim construction stage that wordlines and bitlines are interchangeable terms. See Docket No. 113 at 6 (“[0]ne of ordinary skill in the art would understand that the current flows can be detected in both the bitline and the word-line, again showing the interchangeability of the two, and with the naming of ‘bitline’ or ‘wordline’ being simply a matter of perspective.”). As interchangeable terms, Ki-lopass proposed they be defined identically as “a line that connects to one terminal of each memory cell in a memory array.” Id. at 5, 6.

On August 31, 2011, the Court issued a claim construction order construing disputed terms from the ’751, ’757, and ’540 patents. Docket No. 147. The Court did not adopt Kilopass’s proposed construction for the terms “bitline” and “wordline,” but largely found in its favor. The Court noted that wordlines and bitlines always appeared orthogonal to one another in a memory array, and thus the Court declined to “define two different terms to mean precisely the same thing when they are not identical.” Id. at 9. However, the Court limited the differences between bit-lines and wordlines to their positions in relation to one another: the Court defined the term “bitline/column bitline” as “a line orthogonal to the row wordline that connects to a terminal of each memory cell in a memory array,” and the term “word-line/row wordline” as “a line orthogonal to the column bitline that connects to a terminal of each memory cell in a memory array.” Id.

Concurrent with this litigation, on December 7, 2010, Sidense filed with the United States Patent & Trademark Office (“PTO”) requests for inter partes reexamination of Kilopass’s patents-in-suit. Si-dense argued to the PTO that Kilo-pass’s ’751 patent was anticipated by an earlier patent, Tanaka et al. (U.S. Patent No. 5,331,181) (“Tanaka”). In Tanaka, unlike Kilopass’s ’751 patent but like Si-dense’s memory cell, the doped semiconductor region is connected to a bitline. The patent examiner in the PTO proceeding issued an Action Closing Prosecution and ruled that Kilopass overcame Tanaka because “it is well known to one of ordinary skill in the art at the time of the invention that the bitlines and wordlines have a distinct functional effect on the operation of memory devices and thus are not interchangeable.” See Docket No. 207-5, Khaliq Deck, Ex. 4 at 6 (Feb. 18, 2011 USPTO Office Action). After Si-dense appealed that decision to the PTO’s Board of Patent Appeals and Interferences (the “BPAI”), Kilopass filed a brief explicitly agreeing with the Patent Examiner’s finding:

With respect to claims 5 and 11, the Patent Owner agrees with the Examiner [1161]*1161that Tanaka does not show a gate formed from a column bit line. As can been seen [sic ] in Figure 2(b) of Tana-ka, the gates of the transistors are coupled to row wordlines. Therefore claims 5 and 11 are not anticipated by Tanaka.

Docket No. 192-3, Hutchins Decl. Ex. 7 at 8 (Kilopass’s Jan. 6, 2012 BPAI Brief).

The position Kilopass took before the BPAI was clearly irreconcilable with its “interchangeability” position that it took before this Court. In a May 1, 2012 Order, the Court found that by taking the contrary position it did before the BPAI, Kilopass clearly and unmistakably disavowed claim scope where the gates of the transistors are connected to row word-lines.2 See Docket No. 224 at 8-11 (citing Computer Docking Station Corp. v. Dell, Inc., 519 F.3d 1366, 1374 (Fed.Cir.2008) (noting that a patentee can disavow claim scope “by clearly characterizing the invention in a way to try to overcome rejections based on prior art”); Spectrum Intern., Inc. v. Steritite Corp., 164 F.3d 1372, 1379 (Fed.Cir.1998) (“Claims may not be construed one way in order to obtain their allowance and in a different way against accused infringers.”)). On May 15, 2012, Kilopass filed a motion for leave to file a motion for reconsideration of the Court’s order finding disavowal of claim scope. Docket No. 228.

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82 F. Supp. 3d 1154, 2015 U.S. Dist. LEXIS 30650, 2015 WL 1065883, Counsel Stack Legal Research, https://law.counselstack.com/opinion/kilopass-technology-inc-v-sidense-corp-cand-2015.