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34 AIPLA Q. J. 1 (2006)
Who Wins Patent Infringement Cases

handle is hein.journals/aiplaqj34 and id is 11 raw text is: AIPLA QUARTERLY JOURNAL VOLUME 34, NUMBER 1 Page 1 WINTER 2006 WHO WINS PATENT INFRINGEMENT CASES? Paul M. Janicke & LiLan Ren* I. INTRODUCTION ............................................................................................ 3 A . Constructing the Database ................................................................ 7 B. Summary of the Observed Events ..................................................... 8 1. Patent-Owner Winners and Accused-Infringer W inn ers ............................................................................. 8 2. Limitations of the Data ................................................... 9 II. RESULTS OF MULTIVARIATE REGRESSION ANALYSIS ................................... 11 A. Regression with Patentee as Winner ............................................... 12 1. Corporate Status and Income ....................................... 12 2. Existence of a Jury Verdict ............................................ 14 3. Type of Law Firm ............................................................ 16 B. Regression with Accused Infringer as Winner .............................. 17 1. Corporate Status and Income ....................................... 17 2. Existence of a Jury Verdict ........................................... 17 3. Type of Law Firm ............................................................ 18 C. Insufficient Data on Effect of Technology Type ............................... 18 D. Some Weaknesses of the Methodology ............................................ 18 III. A CLOSER LOOK AT INDIVIDUAL FACTORS ................................................. 19 A . Technology Differences .................................................................... 19 B. Factors Related to the Parties ......................................................... 21 1. Individual Patent Owner or Corporate Patent O w n er ............................................................................. 21 © 2006. Paul M. Janicke, HIPLA Professor of Law and Co-Director, Institute for Intellectual Property & Information Law, University of Houston Law Center; LiLan Ren, J.D., 2005, University of Houston Law Center, Associate, Weil, Gotshal & Manges (Houston office). The views expressed herein are our own and not those of any other entity. However, we are most appreciative of the extensive and highly valuable research assistance of Hal Borland, University of Houston Law Center, J.D., class of 2006. We are also indebted to John Allison, Polk Wagner, Rochelle Dreyfuss, Kimberly Moore, and Jack Goldstein for reviewing earlier drafts and providing valuable comments. Finally, we thank the AIPLA Quarterly Journal staff for the many improvements made to the manuscript during the editing process.

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