GREE, INC. v. SUPERCELL OY

District Court, E.D. Texas·Decided February 11, 2021·No. 2:19-cv-00310·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE EASTERN DISTRICT OF TEXAS MARSHALL DIVISION

GREE, INC., § §

§ Plaintiff, §

§ v. § CIVIL ACTION NOS. 2:19-CV-00200-JRG

§ 2:19-CV-00237-JRG SUPERCELL OY, § 2:19-CV-00310-JRG § 2:19-CV-00311-JRG Defendant. §

MEMORANDUM ORDER Before the Court are motions in all of the above-captioned cases1 entitled Defendant Supercell Oy’s Motion to Exclude the Testimony of GREE, Inc.’s Damages Expert, Stephen Becker (the “Motions”) filed by Defendant Supercell Oy (“Supercell”). Dkt. No. 154 in Case No. 2:19-cv-200-JRG-RSP (“the -200 case”), Dkt. No. 140 in Case No. 2:19-cv-237-JRG-RSP (“the - 237 case”), Dkt. No. 117 in Case No. 2:19-cv-310-JRG-RSP (“the -310 case”), and Dkt. No. 123 in Case No. 2:19-cv-311-JRG-RSP. Having considered the Motions, the Court finds that they should be DENIED. I. BACKGROUND In all of the above captioned cases, Plaintiff GREE, Inc. (“GREE”) filed complaints against Supercell alleging that Supercell infringes certain of its United States patents. Between all four cases, GREE alleges infringement of U.S. Patent Nos. 10,300,385 (the “’385 Patent”); 10,307,675

1 Both Supercell and GREE note that the parties filed identical motions and responsive briefing in all four above- captioned cases. (Case No. 2:19-cv-311-JRG-RSP, Dkt. No. 147 at 1 n.1; Case. No. 2:19-cv-311-JRG-RSP, Dkt. No. 163 at 1 n.1). Accordingly, the Court will cite to the motion and responsive briefing as filed in Case No. 2:19-cv-200- JRG-RSP. (the “’675 Patent”); 10,307,676 (the “’676 Patent”); 10,307,677 (the “’677 Patent”); 10,328,347 (the “’347 Patent”); 10,335,683 (the “’683 Patent”); 10,328,346 (the “’346 Patent”); 10,355,689 (the “’689 Patent”); 10,076,708 (the “’708 Patent”); 10,413,832 (the “’832 Patent”); 9,079,107 (the “’107 Patent”); and 9,561,439 (the “’439 Patent”) (collectively, the “Asserted Patents”). (Dkt.

No. 154 at 1 n.1; Dkt. Nos. 67, 128). GREE asserts that Supercell’s Clash of Clans, Clash Royale, and Hay Day mobile games infringe the Asserted Patents. (Dkt. No. 154 at 3). All three games— Clash of Clans, Clash Royale, and Hay Day—are free to play, generating revenue through optional in-game purchases. (Id.). The Asserted Patents claim different functionality; thus, GREE accuses different features in each of Clash of Clans, Clash Royale, and Hay Day, but not all features of these mobile games. (Id.). Each of these mobile games include many features that are not accused of infringement. (Id.). Dr. Becker is GREE’s damages expert. Dr. Becker opines that the structure of the reasonable royalty in this case is a running royalty expressed as a percentage of gross revenues from each of the accused Supercell games. (Dkt. No. 172-2 at ¶¶ 131–32; Dkt. No. 172-3 at ¶¶ 145–

46; Dkt. No. 172-4 at ¶ 177; Dkt. No. 172-5 at ¶ 178). Dr. Becker determined the appropriate royalty would be a percentage of the gross revenues of Supercell’s accused games because Supercell does not track revenue earned from any one feature. (Dkt. No. 172 at 12). To calculate the appropriate royalty, Dr. Becker relies on survey data from GREE’s survey expert, Dr. Neal. (Id. at 3). Dr. Neal surveyed players of the accused games to measure awareness, importance, and usage of the accused features. (Id.). Dr. Becker also relies on opinions from Dr. Akl, GREE’s technical expert, to determine the comparability of various asserted features. (Id. at 10). In each case, Dr. Becker used Dr. Neal’s survey data to calculate the incremental revenue impact of each accused feature by calculating the percentage reduction in play time given the removal of each accused feature based on the survey data. (Dkt. No. 172-2 at ¶¶ 123–25; Dkt. No. 172-3 at ¶¶ 133–34; Dkt. No. 172-4 at ¶¶ 128–29; Dkt. No. 172-5 at ¶¶ 153–54). Dr. Becker also calculated the “elasticity measure”2 of time spent in a game versus revenue and combined this elasticity measure with the estimated decrease in playing time among users to generate a marginal

revenue impact for each feature (“play less” players). (Dkt. No. 172 at 3–4). Dr. Becker also noted that some players would spend more time playing the game if the asserted feature was removed from the game (“play more” players). (Dkt. No. 172-2 at ¶¶ 126–28; Dkt. No. 172-3 at ¶¶ 135–37; Dkt. No. 172-4 at ¶¶ 130–32; Dkt. No. 172-5 at ¶¶ 155–57). Using a logit model, Dr. Neal’s survey reports also indicated that each additional feature of a game rated as being “important” was associated with a percentage increase in the predicted likelihood of a player being a paying player. (Dkt. No. 172 at 3–4). Dr. Becker used this information to calculate the incremental revenue associated with each accused feature. (Id.). From this information, Dr. Becker concluded that the parties would consider a range of revenue impact values in determining an appropriate reasonable royalty: (1) net “play more” players against “play less” players; (2) “play less” players only; and

(3) rates generated by the logit model. (Id. at 4–5). Dr. Becker used these three values as a starting point for his calculations. Dr. Becker then made further adjustments to values to account for the contribution of non-patented features and other incremental costs to Supercell tied to revenue. (Id. at 5). Taking all the foregoing into account and based upon Dr. Becker’s analysis of the Georgia-Pacific factors, Dr. Becker then opined that the parties would have agreed to a midpoint of the range of revenue impact values. (Id.). Dr. Becker performed the above analysis for all Asserted Patents, but his analysis of the ’346 Patent in the -237 case differed slightly. (Id.). Unlike the other features at issue, the feature

2 “Elasticity measure” provides a measure of the percentage change in revenue for each percent change in time spent playing the game. (Dkt. No. 172 at 3). accused of infringing the ’346 Patent is not optional. (Id.). Instead it is used by all Clash Royale players. (Id.). Dr. Akl’s opines that the Asserted Patents related to the eight optional features of Clash Royale are technologically comparable to the ’346 Patent. (Id. at 5, 10). Relying on this opinion, Dr. Becker opines that in determining the average incremental revenue impact of the

feature accused of infringing the ’346 Patent, the parties would have referenced the average incremental revenue impact of the eight comparable Clash Royale features surveyed under the same methodology. (Id. at 5). Using this as a starting point, Dr. Becker then adjusted the rate for the ’346 Patent based on his analysis under the Georgia-Pacific factors. (Dkt. No. 172-3 at ¶¶ 216– 230). Supercell now moves to strike Dr. Becker’s damages opinions as being based on unreliable methodologies in violation of FRE 702 and Daubert. II. LEGAL STANDARD a. Expert Witnesses A qualified expert witness may offer opinion testimony if: (a) the expert’s scientific,

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