Spanx v. Bingrong (337-TA-1436): ITC Shapewear Patent Complaint Withdrawn
Spanx, LLC brought a Section 337 complaint at the U.S. International Trade Commission against Bingrong Co., Ltd, asserting six patents covering flocked shapewear, lower body garments, and related designs. The investigation closed after 265 days when Spanx withdrew its complaint, ending proceedings before any merits determination.
Spanx’s ITC shapewear complaint against Bingrong ends on withdrawal
On 31 December 2024, Spanx, LLC initiated ITC Investigation No. 337-TA-1436 against Bingrong Co., Ltd, a foreign manufacturer, asserting six patents — US10455866B2, USD0796784S, US9930916B2, USD0707920S, US9179713B2, and USD0796780S — covering flocked shapewear garments, lower body garments, and associated ornamental designs. The complaint was filed before the United States International Trade Commission in Washington, D.C., the specialist tribunal with authority to exclude infringing imported goods from the U.S. market.
The investigation was terminated on 22 September 2025, approximately 265 days after filing, following withdrawal of the complaint by Spanx. The ITC docket records the basis of termination as ‘Case Withdrawn’ and the participant disposition as ‘Complaint Withdrawn.’ No final initial determination or exclusion order was issued, meaning the case ended without any ruling on infringement, validity, or the appropriateness of exclusionary relief.
A withdrawal at this stage of an ITC investigation — before a merits ruling — is consistent with several strategic scenarios: a confidential settlement, a licensing agreement, Spanx electing to pursue the matter in parallel district court proceedings, or a reassessment of litigation posture against this specific respondent. The public record does not disclose the reason for withdrawal. The relatively swift resolution, well short of the typical ITC timeline, suggests the parties likely reached some form of accommodation, though this cannot be confirmed from available filings.
Filing to Case Withdrawn in 265 days
ITC Section 337 investigations average 15–18 months to a final determination; this case closed in under 9 months
Complaint withdrawn at the ITC: what termination means for each party
What ‘complaint withdrawn’ means at the ITC
When a complainant withdraws a Section 337 complaint before a final determination, the ITC terminates the investigation without adjudicating infringement or validity. No exclusion order or cease-and-desist order issues. The withdrawal is procedurally distinct from a dismissal on the merits — it reflects the complainant’s own election to end proceedings, and leaves all substantive patent questions unresolved on the public record.
No merits ruling issuedSpanx retains full patent rights but gains no exclusion order
Withdrawal does not invalidate or weaken Spanx’s six asserted patents. All utility and design patents remain in force and enforceable in other forums. Spanx retains the option to re-file an ITC complaint, initiate district court infringement proceedings, or pursue licensing discussions. The withdrawal may reflect a negotiated resolution — but the public record does not confirm this. Spanx’s IP position in shapewear is unchanged by the procedural outcome.
Patents remain enforceableBingrong avoids an exclusion order — for now
Bingrong Co., Ltd escapes the investigation without an ITC exclusion order barring its shapewear imports into the United States. However, the absence of a merits ruling means no finding of non-infringement or invalidity was made in Bingrong’s favour. Bingrong remains exposed to future enforcement actions by Spanx in district court or a re-filed ITC complaint, particularly if no settlement or licence was agreed. The withdrawal provides practical relief but not legal certainty.
No exclusion order; exposure remainsITC shapewear enforcement: a pattern worth monitoring
Section 337 complaints filed by branded apparel companies against foreign garment manufacturers are an increasingly common enforcement tool, given the ITC’s in rem jurisdiction over imports. A withdrawal before determination — particularly one involving six patents across both utility and design categories — suggests the enforcement dynamic in flocked shapewear IP remains fluid. Competitors and importers in the shapewear and intimate apparel segment should treat this as a signal that Spanx is actively monitoring its patent portfolio against import competition.
Shapewear import IP risk elevatedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Spanx, LLC | Company | Shapewear and apparel innovator — holder of US10455866B2 and five related design and utility patentsSearch in Eureka ↗ |
| Defendant | Bingrong Co., Ltd | Company | Bingrong Co., Ltd — foreign manufacturer of garments implicated in shapewear import complaintSearch in Eureka ↗ |
| Plaintiff counsel | Christopher S. Geyer | Attorney | Counsel for Spanx, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Scale, LLP | Law Firm | Representing Spanx, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | United States International Trade CommissionSearch in Eureka ↗ |
Official order — verbatim text
The ITC docket records the disposition as ‘Complaint Withdrawn’ with the basis of termination listed as ‘Case Withdrawn.’ This phrasing confirms that Spanx — not the Commission — elected to end the investigation. No infringement finding, no validity ruling, and no exclusion order resulted. From an IP risk perspective, the withdrawal is procedurally neutral: it does not establish any precedent on the merits of the six asserted patents and does not preclude Spanx from pursuing the same patents in future proceedings against Bingrong or other respondents.
US10455866B2 — flocked shapewear garment construction technology
The six patents asserted in this investigation span both utility and design protection across Spanx’s core shapewear product lines. The utility patents — US10455866B2, US9930916B2, and US9179713B2 — protect functional innovations in flocked shapewear construction, lower body garments, and shaping panel architecture. Application dates range from 2013 (US13/957101) through 2018 (US15/898992), reflecting a sustained programme of patent prosecution covering both foundational and incremental innovations in the shapewear category.
The three design patents (USD0796784S, USD0707920S, USD0796780S) protect the ornamental appearance of Spanx’s garments, a critical enforcement tool in a fashion-adjacent category where visual differentiation drives consumer purchasing. Together, the six-patent assertion creates a layered enforcement portfolio that covers both how the products work and how they look — a combination that substantially raises the cost and complexity of designing around Spanx’s IP for any competing manufacturer or importer targeting the U.S. market.
Should you run an FTO against US10455866B2 and Spanx’s shapewear patent portfolio?
Any company manufacturing, importing, or distributing flocked shapewear, lower body garments, or shaping intimate apparel for the U.S. market should treat Spanx’s six-patent portfolio as a serious FTO priority. The combination of utility patents covering garment construction methods and design patents covering ornamental appearance creates overlapping risk vectors. Products with flock-finish fabrics, compression panels, or visual profiles similar to Spanx’s registered designs warrant independent claim-mapping before U.S. market entry.
PatSnap Eureka’s FTO Search Agent enables IP and R&D teams to map product features against the claims of US10455866B2, US9930916B2, US9179713B2, and the three asserted design patents simultaneously. Eureka surfaces related family members, prosecution history, and claim scope analysis — helping you identify design-around options before commercialisation. Given that Spanx has demonstrated willingness to use the ITC as an enforcement venue, proactive clearance is significantly less costly than responding to a Section 337 complaint.
Run a freedom-to-operate analysis on US10455866B2 to assess your product’s exposure
Run FTO in Eureka →Similar ITC Section 337 shapewear and apparel patent investigations
Cases below involve Section 337 complaints at the U.S. International Trade Commission asserting utility and design patents in apparel, shapewear, and intimate garment categories.
What this case signals for the shapewear and apparel IP landscape
Spanx’s ITC filing against Bingrong signals active portfolio enforcement in flocked shapewear — even when proceedings end before a ruling.
ITC Section 337 is a serious enforcement threat for apparel importers
Filing a Section 337 complaint — especially one asserting six patents — imposes immediate cost and compliance pressure on the respondent. Even when withdrawn, an ITC investigation signals that the patent holder is willing to pursue exclusionary relief. Garment manufacturers and importers in the shapewear category should conduct FTO analysis against Spanx’s utility and design patent portfolio before entering the U.S. market.
Design patents are a distinct infringement vector in shapewear litigation
Spanx asserted three design patents (USD0796784S, USD0707920S, USD0796780S) alongside three utility patents. Design patent infringement at the ITC is assessed under the ‘ordinary observer’ test, which can be easier to satisfy than utility patent infringement standards. Companies manufacturing garments with similar aesthetic profiles to Spanx’s protected designs face meaningful risk even where functional features differ.
Spanx v Bingrong — key questions answered
Spanx, LLC filed a Section 337 complaint at the U.S. ITC on 31 December 2024 against Bingrong Co., Ltd, asserting six patents covering flocked shapewear and lower body garments. The investigation was terminated on 22 September 2025 — after 265 days — when Spanx withdrew the complaint. No infringement finding or exclusion order was issued.
Spanx asserted six patents: utility patents US10455866B2, US9930916B2, and US9179713B2 covering shapewear and lower body garment constructions; and design patents USD0796784S, USD0707920S, and USD0796780S covering the ornamental appearance of shapewear garments. The products at issue were identified as flocked shapewear garments, garments, and lower body garments.
When a complainant withdraws its ITC complaint, the Commission terminates the investigation without ruling on the merits. No exclusion order or cease-and-desist order is issued. The withdrawal does not invalidate the asserted patents or prevent the patent holder from filing a new ITC complaint or initiating district court proceedings on the same patents in the future.
No. A withdrawal before a merits determination has no effect on the validity or enforceability of Spanx’s patents. All six asserted patents — including the three utility patents and three design patents — remain in force. Spanx retains the right to enforce them in future proceedings before the ITC or in U.S. district courts.
Companies importing flocked shapewear or lower body garments into the U.S. face layered risk from Spanx’s portfolio. The utility patents cover functional construction methods that may be difficult to design around, while the design patents protect ornamental appearance under the ‘ordinary observer’ standard. The ITC filing demonstrates active enforcement intent. An FTO analysis mapping product features against the claims of US10455866B2, US9930916B2, and the design patents is advisable before U.S. market entry.
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