Avocent Huntsville Corp. v. Clearcube Technology, CIVA CV03S2875NE.

Decision Date12 July 2006
Docket NumberNo. CIVA CV03S2875NE.,CIVA CV03S2875NE.
Citation443 F.Supp.2d 1284
PartiesAVOCENT HUNTSVILLE CORP., Plaintiff, v. CLEARCUBE TECHNOLOGY, INC., Defendant.
CourtU.S. District Court — Northern District of Alabama

James D. Berquist, J. Scott Davidson, Donald L. Jackson, Michael R. Casey, Peter W. Gowdey, Davidson Berquist Jackson & Gowdey, LLP, Arlington, VA, J. Jeffery Rich, Sirote & Permutt, P.C., Huntsville, AL, for plaintiff Avocent Huntsville Corp.

Harlan I. Prater, IV, Lightfoot, Franklin & White, LLC, Birmingham, AL, Joseph M. Cloud, Joseph M. Cloud, P.C., Huntsville, Al, Russell T. Wong, J. David Cabello, Wong, Cabello, Lutsch, Rutherford & Brucculeri, LLP, Houston, TX, for defendant ClearCube Technology, Inc.

MEMORANDUM OPINION

SMITH, District Judge.

Plaintiff, Avocent Huntsville Corporation ("Avocent"), owns two patents directed to the problems of transmitting computer-generated, analog color video signals over extended distances: i.e., U.S. Patent No. 6,150,997 ("the '997 patent"), and U.S. Patent No. 6,184,919 ("the '919 patent"). Avocent contends that accused products of defendant, ClearCube Technology, Inc. ("ClearCube"), infringe claim 1 of the '997 patent, and claims 1, 6, and 16-18 of the `919 patent.1 See 35 U.S.C. § 271. ClearCube's amended answer asserts affirmative defenses and counterclaims for invalidity under 35 U.S.C. §§ 102, 103, and 112, and for patent unenforceability under the doctrine of inequitable conduct before the Patent and Trademark Office.2 Numerous motions are pending, but not all are addressed in this opinion. A list of those motions raising issues discussed herein is set out below, followed immediately by an outline of the ensuing discussion.

A. Document Number ("doc.no.") 136—ClearCube's motion for summary judgment declaring that certain Avocent patents and/or applications constitute prior art to the patents-in-suit;3

B. doc. no. 142—Avocent's motion for a partial summary judgment declaring that the patents-in suit "are not invalid";4

C. doe. no. 154—Avocent's motion for separate trial of ClearCube's inequitable conduct allegations;

D. doe, no. 157—Avocent's motion for a partial summary judgment declaring that it engaged in "no inequitable conduct";

E. doe. no. 160—Avocent's motion for a partial summary judgment declaring that ClearCube's products satisfy the "amplifier" limitation of claims 1 and 6 of the '919 patent, and, claim 1 of the '997 patent;

F. doe. no. 166—ClearCube's motion for partial summary judgment of non-infringement of claims 1 and 6 of the '919 patent;

G. doc. no. 168—Clear Cube's motion for partial summary judgment of non-infringement;

H. doe. no. 171—ClearCube's motion for a partial summary judgment declaring that Avocent's '919 and '997 patents are not enforceable; and,

I. doe. no. 174—Avocent's motion to strike the supplemental expert report of Gregg L. Vaughn, Ph.D.

OUTLINE OF DISCUSSION

                PART ONE Standards of Review..........................................................1293
                PART TWO Background of the Patents-in-Suit............................................1294
                    A. The '689 Application and '404 Patent.............................................1296
                    B. The '442 Application.............................................................1296
                    C. The Patents-in-Suit..............................................................1296
                           1. The '076 application and '919 patent..........................................1296
                           2. The '697 application and '997 patent..........................................1297
                PART THREE The Disputed Claims...........................................................1297
                PART FOUR Claim Construction Decisions....................................................1300
                PART FIVE Avocent's Motion to Strike the Supplemental Report of ClearCube's
                  Expert Witness, Dr. Gregg L. Vaughn.......................................................1300
                    A. Procedural Background..............................................................1300
                    B. Section II of Vaughn's Supplemental Report—the "amplifier" non-infringement
                         opinion............................................................................1303
                         1. Avocent's argument..............................................................1304
                         2. Conclusion......................................................................1304
                    C. Section III of Vaughn's Supplemental Report—the "adapter" non-infringement
                          opinion...........................................................................1305
                         1. Conclusion......................................................................1307
                    D. Sections IV and V of Vaughn's Supplemental Report—"obviousness" and
                           the validity of the patents-in-suit..............................................1307
                         1. Scope of Dr. Vaughn's rebuttal..................................................1308
                            a. Conclusion...................................................................1308
                         2. New "prior art".................................................................1308
                PART SIX Infringement Contentions..........................................................1309
                     A. Avocent's Motion for Partial Summary Judgment Declaring that Clear-Cube's
                           Accused Products Include the "Amplifier" Element Recited in
                           Claim 1 of the '997 Patent, and, Claims 1 and 16 of the '919 Patent..............1310
                          1. Infringement analysis..........................................................1311
                
                a. "a circuit (or a device when connected in a circuit)" ....................... 1313
                           b. "that draws power from a source other than the input signal" ................ 1313
                           c. "and provides an output signal that reproduces the essential
                                features of the input signal" ............................................. 1313
                              i. Dr. Vaughn's testimony ................................................... 1314
                        2. Conclusion ..................................................................... 1315
                     B. ClearCube's Motion for Partial Summary Judgment Declaring Non-Infringement
                         of Claim 1 of the '997 Patent, and, Claims 1 and 6 of
                         the '919 Patent .................................................................. 1316
                        1. Procedural background .......................................................... 1317
                        2. ClearCube's summary judgment contentions ....................................... 1319
                        3. Avocent's response ............................................................. 1321
                        4. Conclusion ..................................................................... 1322
                     C. "The Adapter Motion"—i.e., ClearCube's Motion for Partial Summary
                          Judgment Declaring Non-Infringement of Claims 1 and 6 of the '919
                          Patent .......................................................................... 1322
                        1. Facts relevant to "the adapter motion" ......................................... 1323
                        2. ClearCube's argument ........................................................... 1324
                           a. ClearCube's "testing" contention ............................................ 1324
                           b. ClearCube's credibility contentions ......................................... 1325
                           c. Dr. Vaughn's rebuttal ....................................................... 1325
                        3. Conclusion ..................................................................... 1326
                     D. Avocent's Motion for Partial Summary Judgment Declaring that Claims
                         16-18 of the '919 Patent are Infringed ........................................... 1326
                PART SEVEN Avocent's Motion for a Partial Summary Judgment Declaring That
                  The Patents-in-Suit "Are Not Invalid" ................................................... 1326
                PART EIGHT ClearCube's Failure to Provide Evidence of Invalidity Under 35
                  U.S.C. §§ 102 and 112 ................................................................... 1328
                PART NINE The Issues of Whether the '997 Patent is Prior Art to the Asserted
                  Claims of the '919 Patent, and, Whether the '404 Patent is Prior Art to Both
                  the '997 and '919 Patents ............................................................... 1328
                     A. The '404 Patent is Prior Art to the '997 and '919 Patents ......................... 1328
                     B. Is the '997 Patent Prior Art to the '919 Patent? .................................. 1329
                        1. The first and second requirements of § 102(e)(2) ............................... 1330
                        2. The fourth requirement of § 102(e)(2) .......................................... 1330
                        3. The third requirement of § 102(e)(2) ........................................... 1331
                           a. Common versus disparate inventors ........................................... 1331
                        4. Conclusion: The '997 patent is not prior art to the asserted claims of
                            the '919 patent, due to Robert Asprey's common inventorship ................... 1334
                PART TEN ClearCube's Contention that the Patents-in-Suit Are Invalid for "Obviousness"
                  ......................................................................................... 1334
                     A. The Patent Requirement of "Non-Obviousness" ....................................... 1335
                        1. Obviousness is a question of law ............................................... 1336
                        2. The presumption of validity applies to the issue of obviousness ................ 1336
                     B. The Prior Art References Relied Upon by ClearCube as Support for its
                         Contention that the Patents-in-Suit are Invalid for Obviousness .................. 1337
                        1. Impact of conclusion that the '997 patent is not prior art to the
                            asserted claims of the '919
...

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