Shuangxi Zhang v. The Individuals, Corporations, Limited Liability Companies, Partnerships, and Unincorporated Associations Identified On Schedule A

26-1539 Fed. Cir. Closed USD901581S
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Infringement action filed 19 Mar 2026 in the United States Court of Appeals for the Federal Circuit and closed 1 Jun 2026, with USD901581S asserted. Recorded basis of termination: appeal dismissed.

Case recordPatsnap Litigation Data·

Case record

Patent involved
USD901581S
Application no.
US29/738205
Case no.
26-1539
Verdict cause
Infringement action
Court
Fed. Cir.
Court level
Court of Appeals
Case region
District of Columbia
Chief judge
None recorded
Trial level
Appeal
Filed – Closed
19 Mar 2026 – 1 Jun 2026
Duration
74 days
Basis of termination
Appeal Dismissed
Products & marks
Eyeglasses
Validity challenges
None recorded
Source: Patsnap Litigation Data. Case 26-1539, United States Court of Appeals for the Federal Circuit. Open this record in Eureka
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Patent at issue
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Parties & counsel

Parties of record

Counsel of record

AttorneyForRole
Qianwu YangShuangxi ZhangPlaintiff
Source: case record + Patsnap company data. Attorney names appear as recorded in the docket. Compare both portfolios
Outcome

Basis of termination

From the record · verbatim

"The parties having so agreed, it is ordered that:(1) The proceeding is DISMISSED under Fed. R. App. P. 42 (b). (2) Each side shall bear their own costs."

Case 26-1539 · Fed. Cir. · closed 1 June 2026
Source: case record, verbatim. The quoted paragraph is the basis-of-termination text as filed.

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FAQ

Frequently asked questions

What is case 26-1539?

26-1539 is a patent infringement action brought by Shuangxi Zhang against The Individuals, Corporations, Limited Liability Companies, Partnerships, and Unincorporated Associations Identified On Schedule A, filed on 19 Mar 2026 in the United States Court of Appeals for the Federal Circuit. The case closed on 1 June 2026.

Which patent was asserted in 26-1539?

USD901581S (“Eyeglasses”), assigned to ZHANG, SHUANGXI, currently active. The record also lists Eyeglasses.

How was case 26-1539 terminated?

The recorded basis of termination is appeal dismissed. The termination text reads: "The parties having so agreed, it is ordered that:(1) The proceeding is DISMISSED under Fed. R. App. P. 42 (b). (2) Each side shall bear their own costs."

How long did case 26-1539 take?

74 calendar days, from filing on 19 Mar 2026 to closure on 1 June 2026.

Who were the attorneys and the judge in 26-1539?

Qianwu Yang is recorded as counsel for plaintiff Shuangxi Zhang.

Answers reproduce fields from the case record for 26-1539 and do not constitute legal advice. Ask your own question

Disclaimer. This page reproduces publicly available court docket data for case 26-1539 and is provided for general information and reference only. It is not legal advice and must not be relied upon as such.

Docket data has limits. Records are drawn from a snapshot and may lag the live docket. Sealed filings, amended complaints, counterclaims and post-closure motions may not be reflected. Party names, attorney names and firm affiliations are reproduced as recorded and may contain omissions. Where a field is absent from the record, this page marks it as not recorded rather than inferring a value.

No characterisation of the parties or the outcome. This page reports what the record contains. Nothing here should be read as an assertion that any party infringed, that any patent is valid or invalid, that any settlement occurred, or that any party prevailed.

No FTO or validity opinion. Nothing on this page constitutes a freedom-to-operate, novelty, validity or infringement opinion. Any decision touching a live patent dispute should be verified independently and reviewed with qualified patent counsel.

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