DET Diesel Emission Technologies LLC v. DPF Alternatives LLC et al
| DET Diesel Emission Technologies LLC |
| DPF Alternatives LLC, DPF Alternatives Iowa LLC, DPF Alternatives Central & Midwest Ohio, DPF Alternatives of Southern Indiana LLC, DPF Alternatives West Houston, DPF Alternatives LLC doing business as DPF Alternatives Auburn WA, Collateral Resources LLC doing business as DPF Alternatives Greeley CO, DPF Alternatives Grand Junction CO, Luster Dusters LLC doing business as DPF Alternatives of Southern Kentucky, DPF Clean Technologies Inc, DPF Source Holdings LLC, DPF Source LLC and New Core LLC |
| 3:2026cv00916 |
| March 20, 2026 |
| U.S. District Court for the Northern District of Texas |
| Jane J Boyle |
| Property Rights: Patent |
| 35 U.S.C. § 183 Patent Infringement |
| Plaintiff |
Docket Report
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This docket was last retrieved on April 20, 2026. A more recent docket listing may be available from PACER.
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Filing 30
ELECTRONIC ORDER: From a review of Plaintiff DET Diesel Emission Technologies LLC's ("DET")'s Notice (Doc. 28) and Defendant DPF Alternatives LLC ("DPF")'s Response (Doc. 29), the parties agree at minimum that the deadline to answer the complaint should be extended to May 25, 2026 for the following defendants: DPF; DPF Holdings, LLC; DPF Sources, LLC; and New Core, LLC. The Court therefore extends the deadline to answer or otherwise respond to the complaint to May 25, 2026, for those four defendants only. If a party wishes to extend the deadline beyond that or to otherwise stay the case, that party's counsel and opposing counsel should engage in meaningful conference to confirm whether the request would be opposed or unopposed and to reach reasonable agreements where possible before filing a motion to seek the requested relief. See N.D. Tex. Civ. R. 7.1(a)-(b). (Ordered by Senior Judge Jane J Boyle on 4/20/2026) (chmb)
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| Filing 29 RESPONSE filed by DPF Alternatives LLC re: #28 Notice (Other) (Attachments: #1 Exhibit(s) Exhibit A) (Osterrieder, Erik) |
| Filing 28 NOTICE of STATEMENT OF POSITION REGARDING re: #26 MOTION to Stay filed by DET Diesel Emission Technologies LLC (Whitman, Alex) |
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Filing 27
ELECTRONIC ORDER deferring ruling on #26 Motion to Stay. In Defendant DPF Alternatives LLC ("DPF")'s Motion to Stay, the explanation of Plaintiff DET Diesel Emission Technologies, LLC ("DET")'s apparent non-opposition is confusing. A review of the attached email chain does not clear up the matter. Therefore, the Court ORDERS DET to file a short statement of its opposition or non-opposition to the requested stay by or before April 24, 2026. Until further order of the Court following DET's short statement, deadlines for DPF to answer or otherwise respond to the complaint shall be stayed. The Court encourages the parties and their counsel to confer and clarify issues to streamline the Court's decision on how to proceed. (Ordered by Senior Judge Jane J Boyle on 4/17/2026) (chmb)
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| Filing 26 MOTION to Stay filed by DPF Alternatives LLC with Brief/Memorandum in Support. (Attachments: #1 Exhibit(s) Exhibit A, #2 Exhibit(s) proposed order)Attorney Erik Joseph Osterrieder added to party DPF Alternatives LLC(pty:dft) (Osterrieder, Erik) |
| Filing 25 SUMMONS Returned Executed as to New Core LLC ; served on 3/26/2026. (Whitman, Alex) |
| Filing 24 SUMMONS Returned Executed as to DPF Source LLC ; served on 3/26/2026. (Whitman, Alex) |
| Filing 23 SUMMONS Returned Executed as to DPF Source Holdings LLC ; served on 3/26/2026. (Whitman, Alex) |
| Filing 22 SUMMONS Returned Executed as to DET Diesel Emission Technologies LLC ; served on 3/26/2026. (Whitman, Alex) |
| CASE Returned to District Judge per 21 ELECTRONIC ORDER; Magistrate Judge David L. Horan no longer assigned to case. (kcr) |
| Filing 21 ELECTRONIC Order Vacating #18 Standing Order of Reference. (Ordered by Senior District Judge Jane J Boyle on 3/27/2026) (chmb) |
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Filing 20
ORDER: Because of common questions of fact and law, and in the interest of judicial economy, this case is hereby transferred to the docket of the Honorable United States District Judge Jane Boyle. This action shall henceforth carry the suffix letter "B." All future pleadings and other papers shall henceforth be filed under Civil Action No. 3:26-CV-916-B. Judge Sam A. Lindsay no longer assigned to case. (Ordered by Judge Sam A. Lindsay on 3/27/2026) (cea)
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| Filing 19 NOTICE of Related Case filed by DET Diesel Emission Technologies LLC (Cunningham, M) |
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Filing 18
***VACATED PER 21 ELECTRONIC ORDER*** STANDING ORDER OF REFERENCE: This case is hereby referred to United States Magistrate Judge David Horan for pretrial management. (Ordered by Judge Sam A. Lindsay on 3/24/2026) (ykp) Modified on 3/30/2026 (kcr).
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| Filing 17 Request for Clerk to issue Summons in a Civil Action -Luster Dusters, LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 16 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives, LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 15 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives Iowa LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 14 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives, LLC d/b/a DPF Alternatives Auburn, WA filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 13 Request for Clerk to issue Summons in a Civil Action -New Core, LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 12 Request for Clerk to issue Summons in a Civil Action -DPF Source, LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 11 Request for Clerk to issue Summons in a Civil Action -DPF Source Holdings, LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 10 Request for Clerk to issue Summons in a Civil Action -DPF Clean Technologies filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 9 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives West Houston filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 8 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives of Southern Indiana LLC filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 7 Request for Clerk to issue Summons in a Civil Action -DPF Alternatives Grand Junction, CO filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 6 Request for Clerk to issue Summons in a Civil Action filed by DET Diesel Emission Technologies LLC. (Cunningham, M) |
| Filing 5 Report to Patent/Trademark Office of Initiating Document. Form AO 120 e-mailed to [email protected]. (cfk) |
| Filing 4 Summons Issued as to Collateral Resources LLC, DPF Alternatives Central & Midwest Ohio, DPF Alternatives Grand Junction CO, DPF Alternatives Iowa LLC, DPF Alternatives LLC, DPF Alternatives LLC, DPF Alternatives West Houston, DPF Alternatives of Southern Indiana LLC, DPF Clean Technologies Inc, DPF Source Holdings LLC, DPF Source LLC, Luster Dusters LLC, New Core LLC. (cfk) |
| Filing 3 New Case Notes: A filing fee has been paid. Pursuant to Misc. Order 6, Plaintiff is provided the Notice of Right to Consent to Proceed Before A U.S. Magistrate Judge (Judge Horan). Clerk to provide copy to plaintiff if not received electronically. (cfk) |
| Filing 2 CERTIFICATE OF INTERESTED PERSONS/DISCLOSURE STATEMENT by DET Diesel Emision Technologies, LLC. (Clerk QC note: No affiliate entered in ECF). (Cunningham, M) |
| Filing 1 COMPLAINT WITH JURY DEMAND against DPF Alternatives LLC, Collateral Resources, LLC d/b/a DPF Alternatives Greeley, CO, DPF Alternatives Grand Junction, CO, DPF Alternatives Iowa LLC, Luster Dusters, LLC d/b/a DPF Alternatives of Southern Kentucky, DPF Alternatives Central & Midwest Ohio, DPF Alternatives, LLC d/b/a DPF Alternatives Auburn, WA, DPF Clean Technologies, Inc., DPF Alternatives of Southern Indiana LLC, DPF Alternatives West Houston, DPF Source Holdings, LLC, DPF Source, LLC, New Core, LLC filed by DET Diesel Emision Technologies, LLC. (Filing fee $405; Receipt number ATXNDC-16292725) Clerk to issue summons(es). In each Notice of Electronic Filing, the judge assignment is indicated, and a link to the # Judges Copy Requirements and # Judge Specific Requirements is provided. The court reminds the filer that any required copy of this and future documents must be delivered to the judge, in the manner prescribed, within three business days of filing. Unless exempted, attorneys who are not admitted to practice in the Northern District of Texas must seek admission promptly. Forms, instructions, and exemption information may be found at www.txnd.uscourts.gov, or by clicking here: # Attorney Information - Bar Membership. If admission requirements are not satisfied within 21 days, the clerk will notify the presiding judge. (Attachments: #1 Exhibit(s) Exhibit, #2 Cover Sheet Cover Sheet) (Cunningham, M) |
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