Selecta Klemm v. Westhoff: Plant Patent Infringement Case Dismissed Without Prejudice
German ornamental plant breeders Selecta Klemm and Klemm & Sohn brought a two-patent infringement action against Westhoff Vertriebsgesellschaft and three nursery co-defendants in the Eastern District of Texas, asserting rights over the Discoball™ plant variety. Plaintiffs voluntarily dismissed the case without prejudice under Rule 41(a)(1)(A)(i) after 344 days — leaving the door open for future enforcement.
Two German breeders exit E.D. Texas voluntarily — but leave claims alive
On 20 November 2023, Selecta Klemm GmbH Co. KG and Klemm & Sohn GmbH & Co. KG filed suit in the Eastern District of Texas (Case No. 2:23-cv-00531) before Judge Rodney Gilstrap, asserting infringement of US10588288B1 and US11266114B2 — two US plant patents covering ornamental varieties including the Discoball™ line and KLEPH15313. The defendants named were Westhoff Vertriebsgesellschaft MbH and three related propagation and nursery entities: Cohen Propagation Nurseries Ltd., Plant Source International Mexico, and Vivero Internacional S.A. de C.V.
The case closed on 29 October 2024 — 344 days after filing — when Judge Gilstrap granted the plaintiffs’ own Motion to Dismiss Without Prejudice filed under Rule 41(a)(1)(A)(i). Because the defendants had not yet served an answer or a motion for summary judgment at the time the motion was filed, the rule permitted dismissal as of right. The court ordered all pending relief denied as moot and directed the clerk to close the case. Critically, dismissal without prejudice means the underlying infringement claims were not adjudicated on the merits.
The relatively swift voluntary exit — before any substantive briefing or Markman hearing on record — suggests the parties may have reached a commercial accommodation, or that plaintiffs reassessed their litigation strategy, though the public record is silent on the specific rationale. The without-prejudice designation preserves the plaintiffs’ ability to refile the same infringement claims against the same defendants, making this a strategically ambiguous outcome rather than a clean resolution for the nursery industry.
Filing to Dismissed without Prejudice in 344 days
344 days — faster than the E.D. Texas median for patent cases reaching trial
Dismissed without prejudice: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s right to dismiss before answer
Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order — and without prejudice — by filing a notice before the opposing party serves an answer or a motion for summary judgment. The court’s role is confirmatory. Here, Judge Gilstrap granted the motion and closed the case, but no merits analysis was conducted. The dismissal carries no preclusive effect on the patents or the infringement claims.
No merits rulingWithout prejudice: the claims survive this dismissal
A dismissal without prejudice means the plaintiffs’ infringement claims under US10588288B1 and US11266114B2 remain legally intact and may be refiled in a competent forum. This is distinct from a dismissal with prejudice, which would bar relitigation. The public record does not disclose whether a settlement, license, or other commercial arrangement accompanied the dismissal — the court’s order is silent on any conditions. Practitioners should not treat this as a clean freedom-to-operate signal.
Claims may be refiledSelecta Klemm retains full enforcement optionality
By dismissing without prejudice, Selecta Klemm and Klemm & Sohn preserved maximum flexibility. They incurred no adverse judgment, no fee award, and no claim construction ruling that could narrow their patents in future proceedings. The two plant patents — US10588288B1 and US11266114B2 — remain in force and enforceable. The plaintiffs could refile in E.D. Texas, in another district, or pursue parallel enforcement routes including US Customs exclusion orders.
Patents remain enforceableWesthoff and co-defendants face unresolved patent exposure
The four defendants — Westhoff, Cohen Propagation Nurseries, Plant Source International Mexico, and Vivero Internacional — obtained no declaratory judgment of non-infringement or invalidity. If no license or settlement was concluded privately, they remain exposed to a refiled suit on identical claims. Nursery operators and propagation businesses distributing Discoball™-adjacent varieties should treat this dismissal as a continuing risk signal rather than a cleared path.
No invalidity findingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Selecta Klemm Gmbh Co., KG | Company | German ornamental plant breeder and IP licensor — holder of US10588288B1 and US11266114B2Search in Eureka ↗ |
| Co-Plaintiff | Klemm & Sohn Gmbh & Co., KG | Company | Search in Eureka ↗ |
| Defendant | Westhoff Vertriebsgesellschaft, Mbh | Individual | Westhoff Vertriebsgesellschaft MbH — German plant marketing firm with US nursery distribution networkSearch in Eureka ↗ |
| Co-Defendant | Cohen Propagation Nurseries, Ltd. | Company | Search in Eureka ↗ |
| Co-Defendant | Plant Source International Mexico | Individual | Search in Eureka ↗ |
| Co-Defendant | Vivero Internacional, S.A. DE C.V. | Individual | Search in Eureka ↗ |
| Plaintiff counsel | Deron R. Dacus | Attorney | Counsel for Selecta Klemm Gmbh Co., KGSearch in Eureka ↗ |
| Plaintiff law firm | The Dacus Firm PC | Law Firm | Representing Selecta Klemm Gmbh Co., KGSearch in Eureka ↗ |
| Presiding judge | Judge Rodney Gilstrap | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order is purely procedural — Judge Gilstrap confirmed the Rule 41(a)(1)(A)(i) dismissal as of right, conducted no claim construction, and issued no merits findings. The phrase ‘DISMISSED WITHOUT PREJUDICE’ means neither patent was adjudicated valid, invalid, infringed, or not infringed. The denial of all pending relief as moot closes the docket cleanly but creates no estoppel. For the defendants, this is not exoneration; for the plaintiffs, it is a deliberate strategic reset with full enforcement optionality preserved.
US10588288B1 & US11266114B2 — Ornamental Plant Variety Patents
US10588288B1 (application no. US16/579514) and US11266114B2 (application no. US16/739926) are US plant patents — a category distinct from utility patents that protects asexually reproduced, distinct, and new plant varieties. Plant patents grant exclusivity over the asexual reproduction of the protected variety. The patents in suit cover ornamental flowering plant varieties including the Discoball™ commercial line. Both patents were filed by Klemm-affiliated breeders, reflecting a coordinated IP strategy for protecting proprietary European-bred ornamental genetics in the US market.
Ornamental plant patents have become an increasingly active enforcement tool for European breeders seeking to protect varieties commercialised across North American greenhouse and nursery channels. US plant patents are narrow by design — they protect a single variety’s asexual reproduction — but the supply-chain enforcement model used here (targeting the importer, propagator, and grower simultaneously) amplifies their commercial reach considerably. Competitors breeding in adjacent flowering plant categories, and distributors sourcing from European breeders, should assess whether their product lines fall within the variety descriptor scope of these two patents.
Should your ornamental plant business run an FTO against US10588288B1 and US11266114B2?
Any nursery operator, propagator, or distributor sourcing, propagating, or selling Discoball™-adjacent ornamental varieties in the US market should treat these patents as live enforcement risks. The without-prejudice dismissal in this case created no safe harbour. European breeders holding US plant patents on commercial varieties have demonstrated willingness to pursue multi-defendant supply-chain litigation in high-velocity patent courts. A proactive FTO review is particularly urgent for businesses importing propagation material from European or Latin American sources.
PatSnap Eureka’s FTO Search Agent can map the variety descriptor language in US10588288B1 and US11266114B2 against your product portfolio, flag overlapping claims, and surface related plant patent families held by Selecta Klemm, Klemm & Sohn, and Westhoff-affiliated breeders. Eureka’s portfolio monitoring tools can also alert your IP team if either patent is asserted again in US litigation — giving you early warning before a new complaint is filed.
Run a freedom-to-operate analysis on US10588288B1 to assess your product’s exposure
Run FTO in Eureka →Similar ornamental plant patent infringement cases in US federal courts
Cases involving US plant patent enforcement against nursery supply chains in the Eastern District of Texas and comparable federal venues, including multi-defendant propagation disputes.
What this case signals for ornamental plant patent enforcement strategy
Pre-answer voluntary dismissals in E.D. Texas plant IP cases are rare — this outcome warrants attention from breeders, propagators, and distributors alike.
Without-prejudice exits preserve enforcement leverage — watch for refiling
When well-resourced European plant breeders dismiss without prejudice in E.D. Texas, the strategic default assumption is that commercial discussions are ongoing. The patents are not dead — US10588288B1 and US11266114B2 remain active. Any distributor or propagator in the Discoball™ ornamental supply chain should treat this case as unresolved and monitor for refiling or parallel enforcement action.
Four-defendant structure signals a supply-chain enforcement approach
Naming a marketing firm, a Canadian propagation nursery, a Mexican propagation entity, and a Mexican commercial grower in the same action is consistent with a supply-chain theory of infringement — targeting multiple nodes simultaneously to maximise settlement pressure. If the case refiles, expect a similar or expanded defendant set. Plant IP holders are increasingly deploying this multi-defendant architecture in US courts.
Selecta v Westhoff — key questions answered
The case (2:23-cv-00531) was dismissed without prejudice. Judge Gilstrap granted the plaintiffs’ own Rule 41(a)(1)(A)(i) motion, meaning the infringement claims under US10588288B1 and US11266114B2 were not adjudicated on the merits and may be refiled.
Selecta Klemm and Klemm & Sohn asserted two US plant patents: US10588288B1 (application US16/579514) and US11266114B2 (application US16/739926), covering ornamental plant varieties including the Discoball™ commercial line and KLEPH15313.
The public record does not disclose the reason for the voluntary dismissal. Possible explanations include a private settlement or licensing agreement, a strategic reassessment of litigation approach, or commercial discussions that made continued litigation unnecessary. The court’s order is silent on any conditions attached to the dismissal.
No. A dismissal without prejudice carries no preclusive effect on the underlying patent claims. Neither US10588288B1 nor US11266114B2 was found invalid or not infringed. Westhoff and the three co-defendants — Cohen Propagation Nurseries, Plant Source International Mexico, and Vivero Internacional — remain exposed to a refiled infringement action on identical claims.
The four-defendant structure — targeting a marketing firm, a Canadian propagator, and two Mexican entities simultaneously — is consistent with a supply-chain enforcement strategy that aims to pressure multiple commercial nodes at once. This approach is increasingly used by European plant breeders to maximise settlement leverage and disrupt distribution networks for allegedly infringing varieties in the US market.
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