Ring Plus, Inc. v. Cingular Wireless LLC

637 F. Supp. 2d 423, 2009 U.S. Dist. LEXIS 69394, 2009 WL 2184541
CourtDistrict Court, E.D. Texas
DecidedJuly 17, 2009
Docket1:08-cv-00042
StatusPublished
Cited by1 cases

This text of 637 F. Supp. 2d 423 (Ring Plus, Inc. v. Cingular Wireless LLC) 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.

Bluebook
Ring Plus, Inc. v. Cingular Wireless LLC, 637 F. Supp. 2d 423, 2009 U.S. Dist. LEXIS 69394, 2009 WL 2184541 (E.D. Tex. 2009).

Opinion

FINDINGS OF FACT AND CONCLUSIONS OF LAW

DAVID FOLSOM, District Judge.

Plaintiff filed suit on April 14, 2006, alleging infringement of United States Patent No. 7,006,608 (the “'608 Patent”). Dkt. No. 1. This case was originally filed in the Marshall Division and assigned Civil Action No. 2:06-cv-159 but was later transferred by agreement of the parties to the Texarkana Division and assigned Civil Action No. 5:08-cv-42. Dkt. No. 237. The Court granted summary judgment of non-infringement on June 4, 2008. Dkt. No. 280. On December 15, 2008, the Court held a bench trial on inequitable conduct, and the parties subsequently submitted proposed findings of fact and conclusions of law. Dkt. Nos. 318 and 319. Pursuant to Federal Rule of Civil Procedure 52(a), the following constitute the Court’s findings of fact and conclusions of law. As discussed herein, the Court finds that the '608 Patent is unenforceable due to inequitable conduct.

I. BACKGROUND

A. Parties

Plaintiff Ring Plus, Inc. (“Ring Plus”) is a privately held company incorporated in Texas. See Dkt. No. 1.

Defendant Cingular Wireless LLC has been renamed AT & T Mobility LLC, and is an indirect, wholly owned subsidiary of AT & T, Inc. which is a publicly traded corporation. See Dkt. No. 261.

Defendant Cingular Wireless II LLC has been renamed AT & T Mobility II LLC, and is an indirect, wholly owned subsidiary of AT & T, Inc. which is a publicly traded corporation. See id.

Defendant Cingular Wireless Corporation has been renamed AT & T Mobility Corporation, and is an indirect, wholly owned subsidiary of AT & T, Inc. which is a publicly traded corporation. See id.

Defendant AT & T Wireless Services, Inc. has been renamed New Cingular Wireless Services, Inc., and is an indirect, wholly owned subsidiary of AT & T, Inc. which is a publicly traded corporation. See id.

*427 All of the above named defendants are collectively referred to as “Defendants.”

B. Jurisdiction

This Court has jurisdiction over this patent infringement case under 28 U.S.C. §§ 1331 and 1338(a). Subject matter jurisdiction is not disputed. Joint Final Pre-Trial Order, Dkt. No. 306 at 2.

C. Procedure

On December 15-16, 2008, the Court held a bench trial regarding Defendants’ counterclaim of unenforceability. Dkt. No. 310. Plaintiff presented the testimony of its unenforceability expert Mr. William Schaal, Esq. (“Mr. Schaal”). Defendants presented the testimony of their invalidity expert Dr. Stephen B. Wicker (“Dr. Wicker”), and presented the deposition testimony of Robert Schaap, Herbert Cohen, Gene Retske, and Karl Seelig.

At the bench trial, the Court reinstated Defendants’ Motion for Sanctions (Dkt. No. 183), which had been terminated pursuant to a Final Judgement that the Court entered but subsequently vacated in light of Defendants’ remaining counterclaims. 12/15/2008 Tr. (Dkt. No. 314) at 20; see Dkt. Nos. 281 and 284.

D. Background of Issues Presented to the Court

The '608 Patent is entitled “Software Algorithm and Method Enabling Message Presentation During a Telephone Ringing Signal.” The '608 Patent issued on February 28, 2006. Generally, the '608 Patent relates to playing a sound presentation to a caller or recipient during a telephone ringing signal when the recipient’s telephone line is not busy.

On June 10, 2004, the United States Patent & Trademark Office (“USPTO”) issued an Office Action rejecting all pending claims based in part on United States Patent No. 5,321,740 to Gregorek (“Gregorek” or “Gregorek reference”). In response to that rejection, on December 9, 2004, the applicants submitted their “Amendment B,” which amended the claims and made arguments to overcome the rejection based on Gregorek. Defs. Ex. 11. In a following Office Action, on April 28, 2005, the USPTO allowed all 35 pending claims subject to the applicants filing a terminal disclaimer to overcome a double patenting rejection.

Defendants advance three principal reasons why the '608 Patent is unenforceable because of inequitable conduct. First, Defendants assert that the applicants withheld from the USPTO a draft Information Disclosure Statement (the “Draft IDS”) that would have disclosed material prior art. According to Defendants, this Draft IDS contained a statement concerning a prior art patent application of inventor Strietzel, U.S. Patent Application Serial No. 09/753,415, which published as U.S. Patent Publication No. 2001-0051517 (“Strietzel” or “Strietzel reference”), that directly contradicted arguments applicants made to the USPTO in support of patentability. Second, Defendants argue that the applicants falsely represented to the USP-TO that a prior art U.S. Patent No. 4,811,-382 to inventor Sleevi (“Sleevi” or “Sleevi reference”) disclosed playing a message or other sound presentation when the line was busy. Third, Defendants assert that applicants falsely represented to the USP-TO that Strietzel and Sleevi did not disclose a software algorithm for the operation of a telephone. Defendants have also requested a finding that this is an exceptional case and justifies an award of attorney’s fees. Dkt. No. 217 at 9.

II. ADMISSIBILITY OF EXPERT TESTIMONY

Defendants had disclosed an expert witness on the topic of unenforceability, Mr. *428 Martin J. Adelman, Esq. (“Mr. Adelman”), who wrote an expert report on the topic. At trial, Defendants did not present the report or testimony of Mr. Adelman but offered the testimony of Dr. Wicker on the topic of inequitable conduct. 12/15/2008 Tr. at 39:2-3. Defendants’ attorneys represented to the Court that Dr. Wicker’s testimony at trial would consist of material supported by Dr. Wicker’s Invalidity Report. Id. at 38:20-22, 24-25.

Plaintiff objected and moved: (1) to strike Dr. Wicker’s trial testimony on inequitable conduct as outside the scope of his Invalidity Report; and (2) to strike Dr. Wicker’s testimony on “materiality” as having been formed for invalidity purposes rather than inequitable conduct purposes. 12/15/2008 Tr. at 47:17-19 and 64:22-23; 12/16/2008 Tr. (Dkt. No. 315) at 25:7-18. Plaintiff also renewed its motion to strike Dr. Wicker’s testimony. 12/16/2008 Tr. at 58:11-15. The Court allowed Plaintiff a running objection to Dr. Wicker’s testimony as being beyond the scope of Dr. Wicker’s qualifications and expert report. The Court directed the parties to address the admissibility issues in their findings of facts and conclusions of law. 12/15/2008 Tr. at 47:20-48:5; 64:24-65:1; 12/16/2008 Tr. at 56:3-19 and 58:17-21.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

Ring Plus, Inc. v. Cingular Wireless Corp.
614 F.3d 1354 (Federal Circuit, 2010)

Cite This Page — Counsel Stack

Bluebook (online)
637 F. Supp. 2d 423, 2009 U.S. Dist. LEXIS 69394, 2009 WL 2184541, Counsel Stack Legal Research, https://law.counselstack.com/opinion/ring-plus-inc-v-cingular-wireless-llc-txed-2009.