Dell USA L.P. v. Lucent Technologies, Inc.

464 F. Supp. 2d 620, 2006 U.S. Dist. LEXIS 80238, 2006 WL 3166363
CourtDistrict Court, E.D. Texas
DecidedNovember 2, 2006
Docket1:03-cv-00347
StatusPublished

This text of 464 F. Supp. 2d 620 (Dell USA L.P. v. Lucent Technologies, Inc.) is published on Counsel Stack Legal Research, covering District Court, E.D. Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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Dell USA L.P. v. Lucent Technologies, Inc., 464 F. Supp. 2d 620, 2006 U.S. Dist. LEXIS 80238, 2006 WL 3166363 (E.D. Tex. 2006).

Opinion

MEMORANDUM OPINION AND ORDER CONSTRUING CERTAIN CLAIMS OF UNITED STATES PATENTS 6,182,275 AND 6,038,597

RICHARD A. SCHELL, District Judge.

On July 21, 2004, the court conducted a hearing pursuant to the requirements of Markman v. Westview Instruments, Inc., 517 U.S. 370, 116 S.Ct. 1384, 134 L.Ed.2d 577 (1996). Having carefully considered the parties’ briefs, Patent No. 6,182,275 (“the '275 Patent”), Patent No. 6,038,597 (“the '597 Patent”), and the arguments of counsel, the court construes the disputed claims as follows:

STANDARD FOR CONSTRUING CLAIM TERMS

“It is a ‘bedrock principle’ of patent law that ‘the claims of a patent define the invention to which the patentee is entitled the right to exclude.’ ” Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed.Cir.2005) (en banc), quoting Innova/Pure Water, Inc. v. Safari Water Filtration Systems, Inc., 381 F.3d 1111, 1115 (Fed.Cir.2004). In claim construction, courts examine the patent’s intrinsic evidence to define the patented invention’s scope. See id.; C.R. Bard, Inc. v. United States Surgical Corp., 388 F.3d 858, 861 (Fed.Cir.2004); Bell Atl. Network Servs., Inc. v. Covad Communications Group, Inc., 262 F.3d 1258, 1267 (Fed.Cir.2001). This intrinsic evidence includes the claims themselves, the specification, and the prosecution history. See Phillips, 415 F.3d at 1314; C.R. Bard, Inc., 388 F.3d at 861. Courts give claim terms their ordinary and customary meaning as understood by a person of ordinary skill in the art at the time of the invention in the context of the entire patent. Phillips, 415 F.3d at 1312-13; Alloc, Inc. v. Int’l Trade Commission, 342 F.3d 1361, 1368 (Fed.Cir.2003).

*627 The claims themselves provide substantial guidance in determining the meaning of particular claim terms. Phillips, 415 F.3d at 1314. First, a term’s context in the asserted claim can be very instructive. Id. Other asserted or unasserted claims can also aid in determining the claim’s meaning because claim terms are typically used consistently throughout the patent. Id. Differences among the claim terms can also assist in understanding a term’s meaning. Id. For example, when a dependent claim adds a limitation, it is presumed that the independent claim does not include the limitation. Id. at 1314-15. Claims “ ‘must be read in view of the specification, of which they are a part.’ ” Id. at 1315, quoting Markman v. Westview Instruments, Inc., 52 F.3d 967, 978 (Fed.Cir.1995). “[T]he specification ‘is always highly relevant to the claim construction analysis. Usually, it is dispositive; it is the single best guide to the meaning of a disputed term.’ ” Id., quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed.Cir.1996); Teleflex, Inc. v. Ficosa North America Corp., 299 F.3d 1313, 1325 (Fed.Cir.2002). This is true because a patentee may define his own terms, give a claim term a different meaning than the term would otherwise possess, or disclaim or disavow the claim scope. Phillips, 415 F.3d at 1316. In these situations, the inventor’s lexicography governs. Id. Also, the specification may resolve ambiguous claim terms “where the ordinary and accustomed meaning of the words used in the claims lack sufficient clarity to permit the scope of the claim to be ascertained from the words alone.” Teleflex, Inc., 299 F.3d at 1325. But, “ ‘[although the specification may aid the court in interpreting the meaning of disputed claim language, particular embodiments and examples appearing in the specification will not generally be read into the claims.’ ” Comark Communications, Inc. v. Harris Corp., 156 F.3d 1182, 1187 (Fed.Cir.1998); see also Phillips, 415 F.3d at 1323. The prosecution history is another tool to supply the proper context for claim construction because a patent applicant may also define a term in prosecuting the patent. Home Diagnostics, Inc., v. LifeScan, Inc., 381 F.3d 1352, 1356 (Fed.Cir.2004) (“As in the case of the specification, a patent applicant may define a term in prosecuting a patent.”). “The prosecution history, which we have designated as part of the ‘intrinsic evidence,’ consists of the complete record of the proceedings before the PTO and includes the prior art cited during the examination of the patent.” Phillips, 415 F.3d at 1317 (citation omitted). “Yet because the prosecution history represents an ongoing negotiation between the PTO and the applicant, rather than the final product of that negotiation, it often lacks the clarity of the specification and thus is less useful for claim construction purposes.” Id. (citations omitted). “Nonetheless, the prosecution history can often inform the meaning of the claim language by demonstrating how the inventor understood the invention and whether the inventor limited the invention in the course of prosecution, making the claim scope narrower than it would otherwise be.” Id., citing Vitronics, 90 F.3d at 1582-83; see also Chimie v. PPG Indus., Inc., 402 F.3d 1371, 1384 (Fed.Cir.2005) “(The purpose of consulting the prosecution history in construing a claim is to ‘exclude any interpretation that was disclaimed during prosecution.’)” (remaining citations omitted).

Although extrinsic evidence can be useful, such evidence is “less significant than the intrinsic record in determining ‘the legally operative meaning of claim language.’ ” Phillips, 415 F.3d at 1317, quoting C.R. Bard, Inc., 388 F.3d at 862 (remaining citations omitted). Technical dictionaries and treatises may help a court *628 understand the underlying technology and the manner in which one skilled in the art might use claim terms, but technical dictionaries and treatises may provide definitions that are too broad or may not be indicative of how the term is used in the patent. Id. at 1318-19.

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464 F. Supp. 2d 620, 2006 U.S. Dist. LEXIS 80238, 2006 WL 3166363, Counsel Stack Legal Research, https://law.counselstack.com/opinion/dell-usa-lp-v-lucent-technologies-inc-txed-2006.