Cixi City Liyuan v. Yita LLC — Truck Cover Patent Suit Voluntarily Dismissed
Cixi City Liyuan Auto Parts filed suit against Yita LLC in the Central District of California asserting US9981537B2, a patent covering a truck cover system. The case closed without prejudice just 44 days after filing, before Yita served any answer or dispositive motion.
44-day exit: Liyuan’s truck cover patent suit ends before Yita responds
On 19 December 2023, Cixi City Liyuan Auto Parts Co., Ltd., a Chinese automotive parts manufacturer, filed a patent infringement action against Yita, LLC and unnamed Doe defendants in the Central District of California. The asserted patent, US9981537B2, covers a truck cover system — a product category with significant commercial presence in the US aftermarket accessories market. Liyuan was represented by Aptum Law and Javalon Law, PC.
The case closed on 1 February 2024, just 44 days after filing, when Liyuan filed a notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i). Critically, Yita had not yet served an answer or motion for summary judgment, meaning Liyuan was entitled to dismiss as of right — no court approval was required. The dismissal was recorded without prejudice under Rule 41(a)(1)(B), preserving Liyuan’s option to refile the same claims.
A 44-day window between filing and voluntary dismissal — before the defendant even appeared — typically suggests either a pre-litigation settlement, a strategic recalibration, or a decision to pursue alternative enforcement channels. The public record is silent on any agreed terms. No defendant counsel was listed, and no costs order was made, leaving the full commercial resolution, if any, undisclosed.
Filing to resolution in 44 days
Case resolved in 44 days — well ahead of typical district court patent timelines
Voluntarily dismissed — what Rule 41(a)(1) means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed
Under FRCP 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order by filing a notice before the defendant serves an answer or motion for summary judgment. Because Yita had not yet responded, Liyuan exercised this right unilaterally. This is the lowest-friction exit available in US federal litigation — no judicial discretion, no conditions imposed.
Plaintiff-initiated exitWithout prejudice — but the public record is silent on any conditions
The notice expressly invokes Rule 41(a)(1)(B) and states dismissal without prejudice, meaning Liyuan is not barred from refiling the same infringement claims against Yita in future. However, voluntary dismissal without prejudice does not tell us whether a private settlement was reached. The public docket contains no settlement agreement or consent order — any commercial terms, if agreed, remain undisclosed.
Refile rights preservedYita never appeared — no answer, no counsel on record
No defendant law firm or agent is recorded in the case docket. Yita’s silence before the dismissal could reflect an uncontested negotiation, a deliberate strategy of non-engagement at this stage, or simply that Liyuan moved to dismiss before any response deadline expired. The absence of Yita’s counsel makes it impossible to infer the defendant’s litigation posture from public records alone.
No defence on recordUS9981537B2 remains active — enforcement risk persists for truck cover sellers
Because the dismissal was without prejudice, US9981537B2 has not been adjudicated, invalidated, or licensed on any terms visible in the public record. The patent remains a live enforcement asset. Any company selling competing truck cover systems in the US market should treat this outcome as inconclusive — the underlying IP claim has not been resolved on the merits.
Live patent — unresolved meritsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Cixi City Liyuan Auto Parts Co., Ltd. | Company | Chinese automotive parts manufacturer — holder of US9981537B2 (truck cover system)Search in Eureka ↗ |
| Defendant | Yita, LLC | Company | Yita, LLC — US-based seller of automotive and truck accessoriesSearch in Eureka ↗ |
| Plaintiff counsel | Jingyi Guo | Attorney | Counsel for Cixi City Liyuan Auto Parts Co., Ltd.Search in Eureka ↗ |
| Plaintiff counsel | Keren Hu | Attorney | Counsel for Cixi City Liyuan Auto Parts Co., Ltd.Search in Eureka ↗ |
| Plaintiff counsel | Zheng Liu | Attorney | Counsel for Cixi City Liyuan Auto Parts Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge / | Chief Judge | California Central District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The dismissal notice closely tracks the statutory language of Rule 41(a)(1)(A)(i), making clear that no court order was sought or required. The explicit citation of Rule 41(a)(1)(B) confirms the without-prejudice character of the exit, meaning claim preclusion does not attach. For Yita, the immediate threat is lifted. For the broader market, the notice provides no adjudication of US9981537B2’s validity or scope — the underlying IP dispute remains legally unresolved.
US9981537B2 — Truck Cover System Patent
US9981537B2 (application number US15/431790) is a US utility patent protecting a truck cover system — a product class encompassing tonneau covers, bed covers, and related truck bed protection assemblies. The patent was asserted by Cixi City Liyuan Auto Parts Co., Ltd., a Chinese manufacturer in the automotive accessories sector. Truck cover patents frequently address structural configurations, mounting mechanisms, and sealing systems that distinguish premium aftermarket products from commodity alternatives.
The truck bed accessories market in the US is highly competitive, with numerous Chinese OEMs holding US utility patents to protect market position and pursue licensing strategies against domestic e-commerce sellers. US9981537B2 being asserted against an online retailer like Yita is consistent with a broader enforcement pattern across this sector. Competitors and distributors in the tonneau cover, truck bed cover, and cargo management space should assess their product designs against the claims of this patent, particularly given the unresolved status of this litigation.
Should you run an FTO analysis against US9981537B2?
Any company designing, importing, or selling truck cover systems — including tonneau covers, roll-up bed covers, or hard-panel truck bed covers — in the US market should assess their exposure to US9981537B2. Because this case concluded without any merits ruling, the patent’s claims remain fully operative. Retailers selling competing products on Amazon, Walmart Marketplace, or through direct e-commerce channels are particularly at risk given the enforcement profile visible in this docket.
PatSnap Eureka’s FTO Search Agent allows R&D and legal teams to map product features against the claim language of US9981537B2 in minutes, not weeks. You can analyse independent and dependent claims side by side, identify design-around opportunities, and monitor for continuation or divisional applications that may extend this patent family’s reach. Set a claim monitoring alert to catch any prosecution activity related to application US15/431790 before it becomes a new enforcement risk.
Run a freedom-to-operate analysis on US9981537B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent cases involving truck cover and automotive accessory patents
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What this case signals for the truck accessories IP landscape
A rapid pre-answer withdrawal by a Chinese OEM against a US e-commerce seller raises questions that matter beyond this single docket.
Pre-answer dismissals often mask private resolutions — monitor for refiling
When a plaintiff dismisses before the defendant appears, public records rarely reveal whether a deal was struck. IP teams tracking US9981537B2 should set docket alerts for any new filings by Liyuan or related entities — a refile would signal the earlier attempt failed to produce a lasting resolution.
US9981537B2 remains an enforcement asset — FTO reviews are warranted
No merits decision, no invalidity ruling, no consent order. For any company manufacturing or selling truck cover or tonneau cover systems in the US aftermarket, this patent’s enforceability is undiminished by this case. A freedom-to-operate review against claim scope is the prudent next step.
Cixi v Yita — key questions answered
Cixi City Liyuan Auto Parts filed a patent infringement action against Yita, LLC in the Central District of California on 19 December 2023, asserting US9981537B2 covering a truck cover system. The case was voluntarily dismissed without prejudice on 1 February 2024, 44 days after filing, before Yita served any answer or dispositive motion.
A voluntary dismissal without prejudice under FRCP 41(a)(1)(B) means the patent’s validity and scope were never adjudicated. Liyuan retains the right to refile infringement claims based on US9981537B2 against Yita or other defendants. The patent remains a live enforcement asset and is not weakened by this case outcome.
The public record is silent on whether a settlement was reached. No settlement agreement, consent order, or licensing terms appear in the docket. The dismissal notice references only the procedural basis under Rule 41(a)(1)(A)(i). Any private resolution, if it occurred, was not filed with the court.
US9981537B2 (application US15/431790) is a US utility patent held by Cixi City Liyuan Auto Parts Co., Ltd. covering a truck cover system. This patent class typically protects structural, mechanical, or sealing innovations in truck bed cover products such as tonneau covers and cargo bed protection systems used in the automotive aftermarket.
Because the case resolved without any merits ruling, US9981537B2 remains fully enforceable. Other companies selling truck cover systems in the US — particularly online marketplace sellers — should conduct a freedom-to-operate review against the patent’s claims. The inclusion of Doe defendants in the original complaint suggests Liyuan’s enforcement interest may extend beyond Yita alone.
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