Wisk Aero LLC v. Archer Aviation Inc.

District Court, N.D. California·Decided October 4, 2022·No. 3:21-cv-02450·Unknown

Opinion

1 2 3 6 7 WISK AERO LLC, Case No. 3:21-cv-02450-WHO

8 Plaintiff, ORDER GRANTING LEAVE TO 9 v. SERVE AMENDED INFRINGMENT CONTENTIONS Re: Dkt. No. 312 Defendant. 11

12 13 Plaintiff Wisk Aero LLC (“Wisk”) filed this Motion for Leave to Amend Infringement 14 Contentions (“Mot.”) [Dkt. Nos. 311, 312] to amend its allegations against Archer Aviation Inc. 15 (“Archer”) regarding two patents: U.S. Patent no. 10,110,033 (“the ’033 patent”), concerning the 16 battery charging system, and U.S. Patent no. 9,764,833 (“the ’833 patent”), concerning the 17 ventilated rotor mounted on the aircraft boom. Wisk seeks to amend based on purportedly new 18 information it acquired during discovery from Archer, Archer’s Australian supplier Electro.Aero, 19 and the deposition testimony of Archer (formerly Wisk) engineer, Diederik Marius. Archer 20 stipulates to some of the minor amendments but objects to the more significant changes, citing 21 lack of good cause and unfair prejudice. 22 Because Wisk does not assert new theories of infringement, and because it filed its 23 amendments within two or three months of receiving relevant and previously nonpublic 24 information, Wisk sufficiently established good cause and diligence to amend its contentions. At 25 this point there is no prejudice to Archer, particularly because none of the amendments assert new 26 theories or seem to require new discovery. For the following reasons, I GRANT the motion. 1 This order assumes familiarity with the case and prior orders, and only recounts the factual and 2 || procedural background to the extent necessary to consider this motion. 3 Wisk previously alleged that Archer’s battery charging system infringes the ’033 patent, 2 || cvough its eign EI 3 source code, and 5 || under the Doctrine of Equivalents (“DOE”). The initial allegations detailed Archer’s use of □ 6 a charging systems in its Maker aircraft. Mot. 1:15-19. In June 2022 during discovery, 7 || Wisk learned that Electro.Aero, an Australian corporation, sold Archer charging system, 8 || and Wisk also received from Electro.Aero documents containing the source code for Archer’s 9 a systems. Mot. 5:3-5; 5:27-6:3; 6:21-22. In a subsequent deposition of Electro- 10 Aero’s corporate executive, Wisk learned that ee | M0: 2:14: see cis 12 Mot. 3:24-4:9; 7:15-22; Mot. Hefazi Decl. In that same deposition, the corporate representative

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18 documents, quote the source code to show it is nearly identical to the prior code, and refine 19 explanations of the DOE theory.! Mot. 7:4-14; Reply in Support of Motion for Leave to Amend 20 (“‘Repl.”) [Dkt. Nos. 332, 333] 5:15-23; see also Mot. Ex. B (redline changes). Archer also noted □□□□ 22 || 417:22-418:14. In response, Archer contends that the amendments are unripe because a EE 0:05:00 24 || Motion for Leave to Amend Infringement Contentions (“Oppo.”) [Dkt. Nos. 321, 322] 1:5-19; 25 6:16-8:18. Archer also argues that the amended contentions cannot apply to ee 26 27 ' Wisk also removed allegations that the charging system infringes the patent. after learnin ot. 3:1/-23. The removal 1s uncontested. Oppo. In.I.

1 2 3 Oppo. 10:10-16; 11:10-13; see also Dkt. No. 345. Finally, 4 Archer notes that Wisk’s amendments appear to change the scope of products covered from 5 “aircraft” to more general “charger systems.” Oppo. 10:27-11:9. 6 Wisk’s ’833 patent allegations concern the ventilated rotor assembly air-cooling system 7 mounted on the boom of the aircrafts. See Mot. Ex. D. The underlying technology is, in essence, 8 an enclosure of a set of rotors with an air inlet and outlet, which together cause air to flow through 9 the enclosure and cool the rotors. See Mot. 11:21-12:3; Mot. Ex. D at pdf 37, 53, 62, 96. The 10 initial contentions alleged that the technology is mounted on the booms. See, e.g., Ex. Mot. D at 11 pdf 35, 63. While the very first page of the initial allegations seemed to focus on the Maker 12 “aircraft” as the infringing product, the rest of initial allegations referred to the booms of the 13 aircraft. See, e.g., Mot. Ex. D at pdf 27 (initial allegation concerning details about “[e]ach of the 14 six booms of the Maker aircraft”); id. at pdf 46 (same). 15 The amendments mostly add revised explanations of the technology and citations to the 16 newly produced documents, including quotations from the Marius deposition. See, e,g., Mot. Ex. 17 D at pdf 54-61, 64, 69, 77-78, 88, 95. Additionally, Wisk clarifies that its allegations extend to the 18 Midnight aircraft because Wisk only recently learned— 19 20 Mot. 2:17-3:1; 11:14- 21 19; 11:21-12:3; 24:24-25:3. Wisk also asserts that the amendments to its DOE allegations allege 22 the same theories but address contentions brought to light by the Marius deposition, including that 23 the rotors are on the fairing rather than the boom, and that Archer’s design may 24 Mot. 12:4-19. Finally, while the initial allegations cited the purchase 25 contract between Archer and United Airlines, the amended allegations rely more prominently on 26 the contract as evidence that Archer has already sold the technology and therefore committed an 27 infringing act. See Mot. 8:25-9:2; 23:18-26. 1 Oppo. 1:5- 2 19; 3:15-23; 6:16-8:18. Additionally, and in line with its contentions about the ’033 patent, 3 Archer says that Wisk cannot change the definition of “Accused Instrumentalities” to refer to the 4 booms specifically instead of the aircraft. Oppo. 5:28-6:2. Finally, Archer argues it will be 5 prejudiced by all the ’033 and ’833 amendments because they assert new theories and would 6 require additional claims construction. Oppo. 14:21-15:27. 8 The Patent Local Rules permit amendment to initial infringement allegations “only by 9 order of the Court upon a timely showing of good cause.” Pat. Loc. R. 3-6. “[A]bsent undue 10 prejudice to the non-moving party,” good cause may be demonstrated through, among other 11 things, “[r]ecent discovery of nonpublic information about the Accused Instrumentality which was 12 not discovered, despite diligent efforts, before the service of the Infringement Contentions.” Id. 3- 13 6(a)-(b). 14 A court’s “good cause inquiry is two-fold: (1) whether the moving party was diligent in 15 amending its contentions; and (2) whether the non-moving party would suffer prejudice if the 16 motion to amend were granted.” Synchronoss Techs., Inc. v. Dropbox Inc., No. 4:16-cv-00119- 17 HSG (KAW), 2018 WL 5619743, at *3 (N.D. Cal. Oct. 29, 2018) (citation omitted). “Diligence is 18 ‘the critical issue’ in the good cause determination” and consists of two subparts: “(1) diligence in 19 discovering the basis for amendment; and (2) diligence in seeking amendment once the basis for 20 amendment has been discovered.” Karl Storz Endoscopy-Am., Inc. v. Stryker Corp., No. 14-cv- 21 00876-RS (JSC), 2016 WL 2855260, at *3 (N.D. Cal. May 13, 2016) (citations omitted). The 22 moving party has the burden to establish diligence, but the court has discretion to grant leave to 23 amend “even in the absence of diligence so long as there is no prejudice to the opposing party.” 24 Id.; see also Impinj, Inc. v. NXP USA, Inc., No. 19-cv-03161-YGR, 2022 WL 2125133, at *1 25 (N.D. Cal. Mar. 4, 2022). Prejudice can be shown when there will be disruptions to the case 26 schedule or other court orders, Synchronoss Techs., 2018 WL 5619743, at *5, and when a party 27 changes its infringement theories or requires its opposition to prepare additional defenses, see 1 Cal. Nov. 15, 2012). “[E]xtra work alone does not support a finding of prejudice.” Impinj, Inc., 2 2022 WL 2125133, at *2.

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