Shanghai Qianzhuo v. Cattasaurus: Cat Bed Design Patent Dismissed With Prejudice
Shanghai Qianzhuo Network Technology, trading as Futurediamond, sued Cattasaurus LLC in Delaware over design patent USD1029404S covering cat beds sold as ASIN B09YDBZBBJ. After 164 days, both parties jointly stipulated to dismiss all claims with prejudice under Rule 41, with each side bearing its own costs.
Design Patent Dispute Over Cat Beds Ends in Mutual Walk-Away
Shanghai Qianzhuo Network Technology Co., Ltd., doing business as Futurediamond, filed suit against Cattasaurus, LLC on 4 July 2025 in the District of Delaware before Judge Colm F. Connolly. The claim centred on alleged infringement of USD1029404S, a U.S. design patent protecting the ornamental appearance of a cat bed, corresponding to application number 29/917622. The accused product was Cattasaurus’s cat bed listed on Amazon as ASIN B09YDBZBBJ.
The case closed on 15 December 2025 via a joint stipulation of dismissal with prejudice under Federal Rule of Civil Procedure 41(a)(1)(A)(ii). Dismissal with prejudice is a final adjudication on the merits for res judicata purposes, meaning Shanghai Qianzhuo cannot refile the same claims against Cattasaurus over this patent and product combination. Each party agreed to bear its own legal costs, suggesting a clean resolution without any admitted liability or monetary transfer confirmed in the public record.
At 164 days, the case resolved relatively swiftly — consistent with a negotiated settlement reached before significant motion practice or claim construction. The mutual cost-bearing provision and joint nature of the stipulation suggest the parties likely reached a commercial accommodation, though the precise terms remain confidential. What drove resolution — a licensing arrangement, design-around, or market exit — is not discernible from the public docket alone.
Filing to Dismissed with Prejudice in 164 days
164 days — below median for design patent infringement cases in Delaware District Court
Dismissed with prejudice: what the joint stipulation means for both parties
Rule 41(a)(1)(A)(ii) dismissal — final and binding on both sides
A joint stipulation under Fed. R. Civ. P. 41(a)(1)(A)(ii) requires both parties’ signatures and is immediately effective. When filed ‘with prejudice,’ it carries the same preclusive effect as a final judgment on the merits. Neither party can relitigate the same claims arising from USD1029404S and ASIN B09YDBZBBJ in any future action. This is the most definitive non-trial exit available in U.S. federal civil litigation.
Res judicata appliesFuturediamond surrenders right to re-sue on this claim
By agreeing to dismissal with prejudice, Shanghai Qianzhuo (Futurediamond) permanently closes the door on this specific infringement claim against Cattasaurus. The design patent USD1029404S itself remains valid and enforceable against other parties — only this defendant is shielded. The decision to absorb its own costs suggests Futurediamond either achieved its commercial objective or determined continued litigation was not economically justified.
Patent still live vs. third partiesCattasaurus gains permanent shield against this specific claim
Cattasaurus secures a with-prejudice dismissal — the strongest available protection short of a court ruling of non-infringement or invalidity. The defendant cannot be sued again by Futurediamond over USD1029404S and the same accused product. Bearing its own costs is a standard feature of negotiated exits and does not indicate an adverse finding. Future product lines from Cattasaurus, however, remain subject to the live patent.
Protected on this product claimDesign patent enforcement in pet accessories: a signal worth tracking
This case illustrates that Chinese consumer goods IP holders are actively asserting U.S. design patents against Amazon marketplace competitors in Delaware. The swift resolution — likely without full claim construction — means no public ruling on the scope or validity of USD1029404S. Competing cat bed sellers and private-label Amazon vendors should treat this patent as live and conduct FTO analysis before launching similar ornamental designs.
FTO review advised for cat bed sellersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Shanghai Qianzhuo Network Technology Co., Ltd. | Company | Chinese consumer goods maker (Futurediamond) — holder of USD1029404S cat bed design patentSearch in Eureka ↗ |
| Defendant | Cattasaurus, LLC | Company | Cattasaurus, LLC — U.S. seller of cat accessories including accused ASIN B09YDBZBBJSearch in Eureka ↗ |
| Plaintiff counsel | Brianna Manobianco | Attorney | Counsel for Shanghai Qianzhuo Network Technology Co., Ltd.Search in Eureka ↗ |
| Plaintiff counsel | J. Clayton Athey | Attorney | Counsel for Shanghai Qianzhuo Network Technology Co., Ltd.Search in Eureka ↗ |
| Plaintiff counsel | Matthew De Preter | Attorney | Counsel for Shanghai Qianzhuo Network Technology Co., Ltd.Search in Eureka ↗ |
| Plaintiff law firm | Prickett, Jones & Elliott PA | Law Firm | Representing Shanghai Qianzhuo Network Technology Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Edward Paul Steingraber | Attorney | Counsel for Cattasaurus, LLCSearch in Eureka ↗ |
| Defendant law firm | Morris Nichols Arsht & Tunnell LLP | Law Firm | Representing Cattasaurus, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Colm F. Connolly | Judge | Delaware District CourtSearch in Eureka ↗ |
Official order — verbatim text
The joint stipulation explicitly invokes Rule 41(a)(1)(A)(ii) and specifies dismissal ‘with prejudice,’ making the preclusive effect unambiguous. The phrase ‘each party shall bear its own costs’ is standard in negotiated exits and does not signal a particular winner — it simply forecloses any future fee motion under 35 U.S.C. § 285. No merits ruling was issued, so neither infringement nor validity of USD1029404S was adjudicated by the court.
USD1029404S — Ornamental Design for a Cat Bed
USD1029404S is a U.S. design patent protecting the ornamental appearance of a cat bed, filed under application number 29/917622. Design patents under 35 U.S.C. § 171 protect the visual, non-functional characteristics of an article of manufacture. Infringement is assessed by the ‘ordinary observer’ test — whether an ordinary consumer would be deceived into believing the accused design is the same as the patented design. The patent covers the specific aesthetic expression of the cat bed as illustrated in its drawings, not the underlying function.
In the competitive Amazon marketplace for pet accessories, design patents have become a primary tool for Chinese OEM manufacturers to differentiate their products and exclude visually similar competitors. USD1029404S, held by Shanghai Qianzhuo (Futurediamond), represents exactly this enforcement model. With no invalidity ruling on the record, the patent carries full presumptive validity under 35 U.S.C. § 282 — making it a credible threat to any competitor selling aesthetically similar cat beds in the U.S. market.
Should you run an FTO analysis against USD1029404S?
Any company selling cat beds or similar soft pet furniture on Amazon, Chewy, or through U.S. retail channels should evaluate freedom to operate against USD1029404S. The patent’s scope — defined by its drawings — has never been narrowed by claim construction or invalidated by a court or the USPTO. Private-label sellers, white-label importers, and OEM manufacturers sourcing similar designs from China are particularly exposed given the visual nature of design patent infringement analysis.
PatSnap Eureka’s FTO Search Agent can map USD1029404S against your product design, identify prior art that may limit the patent’s scope, and surface related design patents in Futurediamond’s or Shanghai Qianzhuo’s portfolio that could indicate broader enforcement intent. Eureka’s visual similarity tools are specifically suited for design patent landscape analysis, helping R&D and product teams assess risk before launch rather than after a cease-and-desist.
Run a freedom-to-operate analysis on USD1029404S to assess your product’s exposure
Run FTO in Eureka →Similar Design Patent Cases in Consumer Pet Products & Delaware District Court
Cases involving design patent infringement over consumer pet accessories filed in Delaware District Court, with comparable dismissal and enforcement patterns.
What this case signals for the pet accessories design patent landscape
Cross-border design patent enforcement on Amazon is accelerating. This case is a clear marker for IP teams in consumer pet products.
Chinese design patent holders are enforcing aggressively in U.S. courts
Shanghai Qianzhuo’s willingness to file in Delaware — a sophisticated patent venue — over a consumer cat bed signals a maturing enforcement strategy among Chinese e-commerce IP holders. U.S. Amazon sellers in the pet accessories space should audit their product listings against registered design patents, particularly those held by competing Chinese manufacturers.
With-prejudice dismissal leaves USD1029404S fully enforceable against others
The dismissal resolves only the Cattasaurus dispute. USD1029404S remains an active, enforceable design patent. Any third-party seller offering visually similar cat beds on Amazon or other platforms remains exposed to identical infringement claims. The absence of a validity ruling means the patent’s scope has never been tested in litigation.
Shanghai v Cattasaurus — key questions answered
The case was dismissed with prejudice on 15 December 2025 by joint stipulation under Fed. R. Civ. P. 41(a)(1)(A)(ii). Each party bears its own costs. No merits ruling was issued — the dismissal is a negotiated exit that precludes Futurediamond from re-suing Cattasaurus on the same claims.
The patent asserted was USD1029404S, a U.S. design patent corresponding to application number 29/917622, covering the ornamental design of a cat bed. The accused product was Cattasaurus’s cat bed sold on Amazon under ASIN B09YDBZBBJ.
Dismissal with prejudice means Shanghai Qianzhuo (Futurediamond) cannot refile the same infringement claims against Cattasaurus over this patent and product. However, USD1029404S remains fully valid and enforceable against any other party selling visually similar cat beds — the dismissal protects only Cattasaurus.
Delaware is a commonly chosen venue for U.S. patent litigation due to its experienced judiciary and established case law. Judge Colm F. Connolly, assigned to this case, is a well-known patent judge in Delaware. Filing there suggests experienced U.S. patent counsel and a deliberate enforcement strategy, consistent with the growing trend of Chinese IP holders asserting design patents against Amazon competitors in U.S. courts.
Not in any formal legal sense. A joint stipulated dismissal with prejudice carries no finding of non-infringement or invalidity. It is a bilateral agreement to end litigation. The cost-sharing provision means neither party was found liable. The commercial reasons behind the settlement — whether a license, design-around, or product removal — are not disclosed in the public record.
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