Iron Horse Transport, LLC d/b/a DPF Alternatives of Roanoke v. DET Diesel Emission Technologies LLC and Synergy Catalyst LLC

District Court, N.D. Texas·Decided August 26, 2026·No. 3:24-cv-02133·Unknown

Opinion

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF TEXAS DALLAS DIVISION

IRON HORSE TRANSPORT, LLC d/b/a § DPF ALTERNATIVES OF ROANOKE, § § Plaintiff, § § v. § C I V IL ACTION NO. 3:24-CV-2133-B § DET DIESEL EMISSION TECHNOLOGIES § LLC, and SYNERGY CATALYST LLC, § § Defendants. §

MEMORANDUM OPINION AND ORDER

Before the Court is the Motion for Partial Summary Judgment (Doc. 117) filed by Defendants DET Diesel Emission Technologies LLC and Synergy Catalyst LLC (together, “DET”). Having reviewed the briefing, facts, and applicable law, the Court GRANTS DET’s Motion. I. BACKGROUND This case is one among several between DET and affiliates of DPF Alternatives, LLC.1 DET provides products and services for diesel engines, and DPF Alternatives franchises individual service locations for diesel-engine vehicles. The DPF Alternatives-affiliate in this case is Plaintiff Iron Horse Transport, LLC (“Iron Horse”). Iron Horse is a Virginia-based franchise of DPF Alternatives, and

1 For additional background on the larger dispute, see DPF Alts., LLC v. DET Diesel Emission Techs., LLC, No. 3:24-cv-1953-B, 2025 WL 1908170, at *1 (N.D. Tex. July 10, 2025) (Boyle, J.); and DPF Alts., LLC v. DET Diesel Emission Techs., LLC, No. 3:24-cv-1953-B, 2025 WL 3089688, at *1 (N.D. Tex. Nov. 5, 2025) (Boyle, S.J.). its sole member and manager is James Ashworth. This case is about Ashworth/Iron Horse’s dissatisfaction from having signed up to use DET’s product/service called Recore. DET moved for partial summary judgment based on (1) the lack of support for some of Iron

Horse’s claims in Ashworth’s deposition testimony and (2) the terms of a “Master Services Agreement” between DET and Iron Horse. For purposes of the present motion, the facts contained in Ashworth’s deposition testimony and the Master Services Agreement document are undisputed. Iron Horse first entered the diesel particulate filter servicing industry in 2019. See Doc. 122, App. Resp., Ashworth Dep., 24:10–19. Diesel particulate filters are devices that catch “soot” from diesel fuel exhaust in vehicles that run on diesel fuel. See id. at 24:20–24. Once a filter is full of soot,

the filter must either be cleaned or replaced. See id. at 24:24 to 25:1. In Iron Horse’s shop, when customers bring in their diesel vehicles for servicing, Iron Horse either removes, cleans, and reinstalls the filter or replaces the old filter with a new one. See id. at 45:10–15. Ashworth, as owner of the Iron Horse franchise of DPF Alternatives, regularly attended Zoom meetings for all DPF Alternatives franchises, see id. at 59:18 to 60:2—it was at one of these meetings that Ashworth first encountered DET. Generally, in those regularly occurring meetings,

DPF Alternatives would announce new tools that the franchises could use in their business. See id. at 20:19–25. At the September 2021 meeting, DPF Alternatives invited DET’s representative Peter Lambe to present DET’s new “patented process” for servicing filters. See id. at 68:3–11, 69:12–14. As Ashworth understood it, DET’s service differed from what Iron Horse already did by allowing a servicer to replace not just the filter, but the can that houses the filter, or the “core.” See id. at 33:25 to 34:9, 37:5 to 38:21. DET’s new product was called “Recore.” See id. at 68:13–15. At that 2021 Zoom meeting, DET presented Recore marketing material on-screen and directed the DPF Alternatives franchisees to the Recore website. See id. at 69:15–25. The materials and website repeated the claim that Recore was a “patented process” or a “patented-proven process.”

See id. DPF Alternatives was on good terms with DET at the time and indicated that they were hoping to partner with DET to bring Recore to the franchisees. See id. at 74:8–23. But Ashworth was not impressed: he was “reluctant to get involved with Recore” because he “didn’t really see it being a . . . good fit” in Iron Horse’s market region. Id. at 101:1–8. Ashworth expressed his reluctance to Lambe “several times when [Lambe] was trying to get [Ashworth] to sign on to [Recore] in ’21.” Id. at 101:4–6.

The next summer, however, a nearby businessowner—who had bought Recore equipment but was unsure if he would actually use it—walked into Ashworth’s shop and sparked the idea of Iron Horse buying Recore equipment from him. See id. at 80:14–24. Ashworth reached out to Lambe to discuss buying the nearby businessowner’s equipment and entering into a contract with DET to govern use of the Recore system. See id. at 81:3–11. Ashworth still did not entirely see the value of adding Recore to Iron Horse’s lineup of

services, but Lambe told him that DET had “two or three buyers lined up” for the exclusive license to use Recore in the region. See id. at 101:13–25. Wanting to get ahead of his regional competition, Ashworth signed Iron Horse up for Recore. See id. at 101:9–11, 101:25 to 102:1. At the time, DPF Alternatives had designated DET as an “approved vendor” for DPF Alternatives’ franchisees. Id. at 89:1–6. In August 2022, DET and Iron Horse entered into the Master Services Agreement for a five-

year term. See Doc. 122, App. Resp., Master Servs. Agreement, 1. The Agreement defines the phrase “DET Intellectual Property” as including “equipment specifications and designs, processes, procedures, methods, training materials, tooling created using the DET Intellectual Property, and all copyrights, trademarks and patentable rights related thereto.” Id. Through the Agreement, DET

licensed Iron Horse to use the DET Intellectual Property, including in connection with “the methods and procedures for use in the extraction of the Cores.” Id. Although Iron Horse would own the equipment, Iron Horse agreed that it could not “use the Equipment without being subject to DET’s licenses regarding the DET Intellectual Property.” Id. at 2–3. And Iron Horse could not sell the equipment to any third party, nor could Iron Horse assign away its rights under the Agreement without DET’s prior written consent. See id. at 3, 9.

Before Iron Horse had even received the Recore equipment, in September 2022, DPF Alternatives notified its franchisees that Recore was no longer an authorized vendor. See Doc. 122, App. Resp., Ashworth Dep., 63:13 to 64:7. That notification resulted from a dispute between DET and DPF Alternatives with which Ashworth and Iron Horse were not involved. See id. at 103:8–20. Yet, sensing that using the unauthorized machine would put him in “hot water” with his franchisor, Ashworth put the Recore system to the side and did not use it. See id. at 61:11–23.

In the next couple of months after receiving Recore, Ashworth learned that Recore actually was not patented. See id. at 69:25 to 70:4. Around that time, Iron Horse, acting through Ashworth, started trying to get out of the Master Services Agreement but was unsuccessful. See id. Unable to exit, Iron Horse continued to make monthly payments towards purchasing Recore—which, in Ashworth’s words, was “something that sits in my shop and is absolutely of no value to me.” Id. at 61:11–13. Since then, Iron Horse has never used the Recore machine or any other machine that performed the same core-replacement process. See id. at 32:13–24, 100:6–14. Nor does Ashworth have any plans to incorporate core-replacement services into Iron Horse’s business. See id. at 100:15–

24. At the end of the day, Ashworth returned to his original view that he didn’t “see market for [Recore] in [his] territory,” and “nobody seem[ed] interested in” core-replacement services. See id. at 119:6–9. Later, DET sent Ashworth a letter terminating the Master Services Agreement. See id. at 21:16–17. Meanwhile, Iron Horse has remained a franchisee of DPF Alternatives. Id. at 63:3–5. Although the inability to use Recore has caused Iron Horse financial strain, DPF Alternatives has

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Iron Horse Transport, LLC d/b/a DPF Alternatives of Roanoke v. DET Diesel Emission Technologies LLC and Synergy Catalyst LLC, (N.D. Tex. 2026).

Iron Horse Transport, LLC d/b/a DPF Alternatives of Roanoke v. DET Diesel Emission Technologies LLC and Synergy Catalyst LLC (Iron Horse Transport, LLC d/b/a DPF Alternatives of Roanoke v. DET Diesel Emission Technologies LLC and Synergy Catalyst LLC) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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