Tan May Yen v. Ko Cheuk Yin

CourtDistrict Court, W.D. Washington
DecidedMay 20, 2026
Docket2:24-cv-01565
StatusUnknown

This text of Tan May Yen v. Ko Cheuk Yin (Tan May Yen v. Ko Cheuk Yin) is published on Counsel Stack Legal Research, covering District Court, W.D. Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Tan May Yen v. Ko Cheuk Yin, (W.D. Wash. 2026).

Opinion

1 2 3 4 UNITED STATES DISTRICT COURT WESTERN DISTRICT OF WASHINGTON 5 AT SEATTLE 6 TAN MAY YEN, 7 Plaintiff, CASE NO. 2:24-cv-01565-BAT 8 v. FINDINGS OF FACT AND 9 CONCLUSIONS OF LAW KO CHEUK YIN, 10 Defendant. 11 12 On September 24, 2024, pro se Plaintiff Tan May Yen commenced this 17 U.S.C. § 501 13 copyright infringement action against pro se Defendant Ko Cheuk Yin. Dkt. 1. Plaintiff alleges 14 that Defendant’s product (the “Accused Work”) infringed Plaintiff’s copyrighted work “Excel 15 Shortcut Keys Mouse Pad” (the “Copyrighted Work”). Dkt. 5 (“Complaint”). 16 In earlier orders, the Court determined that Defendant had no valid counterclaim under 17 17 U.S.C. § 512(f), no valid affirmative defense of copyright misuse, and no other valid 18 counterclaims. Dkts. 47, 120. At the pretrial hearing, the Court found Plaintiff had demonstrated 19 ownership of a valid copyright that Defendant was unable to rebut through submitting 20 contradictory evidence. Dkt. 127; see Dkt. 126 (“Final Pretrial Order”); see also Dkt. 37, at 7–8; 21 Thus, what was left for the factfinder to determine at trial was whether Plaintiff could 22 demonstrate Defendant copied original expression from the Copyrighted Work and, if so, the 23 measure of damages. 1 The parties consented to proceed before Magistrate Judge Brian A. Tsuchida, Dkts. 16, 2 17, and Judge Tsuchida conducted a Court Trial on May 4, 2026. Dkt. 128. Due to a medical 3 condition, Defendant was permitted to attend the trial remotely via Zoom while Plaintiff 4 appeared in-person. Dkt. 118. The Court has considered the parties’ testimony, presentations,

5 trial briefs, and the record and makes the following findings of fact and conclusions of law under 6 Federal Rule of Civil Procedure 52(a). Any finding of fact that constitutes a conclusion of law is 7 hereby adopted as a conclusion of law, and any conclusion of law that constitutes a finding of 8 fact is hereby adopted as a finding of fact. 9 FINDINGS OF FACT 10 1. Plaintiff Ms. Tan has been self-employed since 2016 and does business as the sole 11 proprietor of Glittery Craft, selling products online at Amazon under the brands of Pixiecube and 12 Glittery Craft. See Complaint 3. Ms. Tan makes all artistic design choices for her products. Ms. 13 Tan’s business produces five mousepads and one of them contains the Copyrighted Work that is 14 the basis for this lawsuit. As a seller using the Amazon platform, Ms. Tan monitors the reports

15 from Amazon, which include the business reports and payment reports showing sales and 16 revenue, and also uses third-party market intelligence tools such as Helium 10 and Xiyouhauci 17 that Amazon makes available to track sales activity of her products and those of her competitors, 18 including historical data. 19 2. Glittery Craft is the registrant and author listed on U.S. Copyright Office 20 Registration Number VA 2-411-555, for a work titled “Excel Shortcut Keys Mouse Pad,” issued 21 on September 9, 2024, with an official effective registration date of June 30, 2024 (“Copyrighted 22 23 1 Work”). Ex. 4. The creation is “2-D Artwork” that was made for hire.1 Id. The rights and 2 permissions are for Glittery Craft and May Yen Tan with Ms. Tan providing the certification. Id. 3 The year of completion of the Copyrighted Work is 2023, and the date of first publication is 4 January 8, 2024. Ex. 4.

5 3. Plaintiff offered the Copyrighted Work as the derivative mousepad product for 6 sale online at Amazon under the brand Pixiecube with the Amazon Seller’s Identification 7 Number (“ASIN”) of B0CNDF682X.2 Exs. 6, 46. Although the Amazon product page shows 8 that the mousepad was first available on November 15, 2023, that date was not the date on which 9 her product was first available for sale. Ex. 46. The correct date for first publication, i.e., when 10 the Copyrighted Work was made available for sale and widely disseminated, was January 8, 11 2024, the publication date listed on the Copyright Office registration. Exs. 4, 6. As late as 12 November 27, 2023, Ms. Tan was still providing instructions to her designer, and the design was 13 not finalized until on or about that date. Exs. 34, 37. The November 15, 2023 date for the ASIN 14 is when Plaintiff used an Amazon tool to receive a catalog digital entry date so that she could

15 download a bar code from Amazon to be used for sales and shipping. That is, the “first 16 available” date on Amazon shows not when her product was first made available for sale; 17 1 The Court excluded Exhibit 1, which is an April 2025 copyright assignment from illustrator 18 Tan Twu Chin to Ms. Tan, because it was produced long after the discovery deadline. Dkt. 120, at 2. The Court did not, however, restrict Plaintiff from revisiting the admission of the copyright 19 assignment should Plaintiff’s ownership of the copyright come into reasonable question. Id. As stated earlier, Defendant offered no evidence to challenge Plaintiff’s ownership of the 20 Copyrighted Work. 2 The image Plaintiff deposited with the Copyright Office matches the images displayed on 21 Plaintiff’s Amazon listing of her product. Compare Ex. 5 with Ex. 6. Although Defendant suggests that the Copyrighted Work might be another, unspecified design in the absence of an 22 official, certified deposit copy, he has not produced a deposit copy, certified or uncertified, that calls into question the authenticity of the depictions of the Copyrighted Work displayed 23 consistently in the deposit copy submitted by Plaintiff and in the Amazon listing for Plaintiff’s mousepad product. 1 instead, it shows when the ASIN was created as a prerequisite for being able to offer her product 2 for sale online. Ex. 46 3 4. For liability purposes, the sole product at issue in this action is the Accused Work, 4 i.e., the original Excel shortcut mousepad design sold on the Amazon marketplace by Defendant,

5 under ASIN B0D14B9C6V (“Accused Work”).3 Complaint 4; Final Pretrial Order 2. The 6 Accused Work was attached to the Complaint and was displayed on Defendant’s listing for his 7 mousepad product “Excel Cheat Sheet Desk Mat.” Dkt. 5-1, at 2; Ex. 19. 8 5. On June 13, 2024, Plaintiff submitted a Digital Millenium Copyright Act 9 (“DMCA”) takedown notice to Amazon targeting Defendant’s ASIN B0D14B9C6V, resulting in 10 the temporary removal of the Defendant’s listing. Final Pretrial Order 2; Ex. 31. On June 18, 11 2024, Defendant submitted a DMCA counter-notification under 17 U.S.C. § 512(g), claiming a 12 good faith belief the material identified in the Notice of Infringement was removed or disabled as 13 a result of mistake or misidentification. Final Pretrial Order 2. On the same day, Amazon 14 informed Plaintiff that Defendant’s listing would be reinstated unless Plaintiff provided notice

15 that a lawsuit had been filed against Defendant within 10 business days. Complaint 3; Ex. 32. 16 Plaintiff filed a federal copyright complaint on June 20, 2024, but that suit was dismissed in 17 August 2024 without prejudice for failure to state a claim because Plaintiff had not yet registered 18

3 Defendant modified the design displayed on the Accused Work after Plaintiff initiated 19 enforcement actions. Final Pretrial Order 3. In December 2025, the Court granted Plaintiff’s unopposed motion in limine to exclude the modified design from the lawsuit based on Plaintiff’s 20 assertions that it was “irrelevant to whether Defendant’s accused mousepad . . .

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Bluebook (online)
Tan May Yen v. Ko Cheuk Yin, Counsel Stack Legal Research, https://law.counselstack.com/opinion/tan-may-yen-v-ko-cheuk-yin-wawd-2026.