A.L.M. Holding v. Hi-Tech Asphalt Solutions: Subpoena Dispute Resolved in 43 Days
A.L.M. Holding Company and co-movant Ergon Asphalt & Emulsions forced a Rule 45 subpoena compliance dispute over six warm-mix asphalt additive patents — including ZycoTherm — into the Virginia Eastern District Court. The parties resolved the matter in 43 days, with Hi-Tech Asphalt agreeing to produce documents responsive to five request categories by September 30, 2025.
Rule 45 Subpoena Enforcement in a Warm-Mix Asphalt Patent Dispute
Filed on August 5, 2025, in the Virginia Eastern District Court before Judge Robert E. Payne, this miscellaneous action — case no. 3:25-mc-00011 — arose when A.L.M. Holding Company and Ergon Asphalt & Emulsions, Inc. moved to compel Hi-Tech Asphalt Solutions, Inc. (HTAS) to produce documents in response to a Rule 45 subpoena. The underlying dispute concerned six U.S. patents covering warm-mix asphalt chemical additives, including the commercially prominent ZycoTherm, ZycoThermSP, ZycoThermSP2, Zycotherm EZ, and Zycotherm LS product lines.
The action closed on September 17, 2025, just 43 days after filing. HTAS agreed to produce non-privileged documents responsive to Request Nos. 1–5 (to the extent located through a reasonably diligent search), to limit production to documents dated on or after January 1, 2017, and to complete production by September 30, 2025. With those obligations agreed, the movants’ motion to compel was rendered moot, and the parties jointly stipulated to dismissal without prejudice under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), with each side bearing its own costs.
The 43-day duration is notably swift for contested subpoena enforcement, suggesting that HTAS’s agreement to produce removed the commercial and reputational stakes of prolonged litigation. Because the dismissal is without prejudice and the underlying patent dispute presumably continues in a separate forum, the produced documents may prove significant to the broader infringement action. The public record does not disclose the primary venue of that underlying case, nor what specific documents HTAS ultimately produced.
Filing to Dismissed without Prejudice in 43 days
43-day resolution — well below median for contested subpoena enforcement actions in federal court
Dismissed without prejudice: what the stipulated resolution means for both parties
Rule 41(a)(1)(A)(ii) dismissal: what ‘without prejudice’ means here
A dismissal without prejudice under Fed. R. Civ. P. 41(a)(1)(A)(ii) terminates the miscellaneous action but does not adjudicate the merits. Crucially, A.L.M. Holding and Ergon retain the legal right to re-file a motion to compel or pursue further enforcement if HTAS fails to comply with its agreed production obligations. No court judgment was entered, and no findings were made on the underlying patent infringement claims.
No merits adjudicationMovants secured document production without a court order
A.L.M. Holding and Ergon achieved their primary objective — access to HTAS documents responsive to five request categories, limited to records from January 1, 2017 onward — without requiring the court to rule on the merits of their motion to compel. The without-prejudice dismissal preserves their ability to return to court if HTAS does not complete production by the September 30, 2025 deadline, providing ongoing leverage.
Production secured; leverage preservedHTAS avoids compelled order but assumes production obligations
Hi-Tech Asphalt Solutions avoided a court-ordered compulsion ruling — which could have carried sanctions risk — by agreeing to produce documents voluntarily. However, HTAS now carries a concrete production obligation with a hard deadline of September 30, 2025. Any failure to comply could expose HTAS to renewed motion practice, potentially before a less receptive court, and with the prior agreement on record.
Production obligation acceptedProduced documents may shape the broader warm-mix asphalt patent battle
This miscellaneous action is a procedural satellite of a larger patent infringement dispute involving A.L.M. Holding’s ZycoTherm asphalt additive portfolio — six granted U.S. patents. Documents produced by HTAS could inform claim construction, damages calculations, or prior art arguments in that primary forum. For competitors in the warm-mix asphalt and road construction additive sector, the enforceability and scope of this six-patent portfolio warrants close monitoring.
Portfolio enforceability in focusFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | A.L.M. Holding Company | Company | Warm-mix asphalt additive IP holder — holder of US8734581B2 and five related patentsSearch in Eureka ↗ |
| Defendant | Hi-Tech Asphalt Solutions, Inc. | Company | Hi-Tech Asphalt Solutions, Inc. — asphalt technology company and subpoena respondentSearch in Eureka ↗ |
| Plaintiff counsel | Michael Jay Schrier | Attorney | Counsel for A.L.M. Holding CompanySearch in Eureka ↗ |
| Plaintiff counsel | Stephen Franklin Wilson Ball , Jr. | Attorney | Counsel for A.L.M. Holding CompanySearch in Eureka ↗ |
| Plaintiff law firm | Husch Blackwell LLP | Law Firm | Representing A.L.M. Holding CompanySearch in Eureka ↗ |
| Plaintiff law firm | Husch Blackwell LLP (MA-NA) | Law Firm | Representing A.L.M. Holding CompanySearch in Eureka ↗ |
| Defendant counsel | Andrew Gish | Attorney | Counsel for Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant counsel | Charles Bennett Molster , III | Attorney | Counsel for Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant counsel | Christopher Robert DeCoro | Attorney | Counsel for Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant counsel | Edward L. Tulin | Attorney | Counsel for Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant counsel | Raymond Johnson Bilderbeck | Attorney | Counsel for Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant law firm | Gish PLLC | Law Firm | Representing Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Defendant law firm | The Law Offices of Charles B. Molster III PLLC | Law Firm | Representing Hi-Tech Asphalt Solutions, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Robert E. Payne | Judge | Virginia Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulated dismissal language confirms this was a procedural resolution, not a merits adjudication. The parties’ joint notice renders the motion to compel moot by agreement rather than by court ruling, meaning no judicial finding was made on whether HTAS’s original non-compliance was justified. The explicit without-prejudice designation and the specific production obligations (Request Nos. 1–5, documents from 2017 onward, deadline of September 30, 2025) are functionally a negotiated consent order, though not entered as one. Both parties avoided the risk of an adverse ruling.
US8734581B2 and five related patents — ZycoTherm warm-mix asphalt additive portfolio
The six patents at issue — US8734581B2, US7815725B2, US9394652B2, US9175446B2, US7981466B2, and US10214646B2 — collectively cover warm-mix asphalt (WMA) chemical additive technology under the ZycoTherm brand. WMA additives allow asphalt mixtures to be produced and placed at lower temperatures than conventional hot-mix asphalt, reducing energy consumption and emissions during road construction. The application dates span roughly 2007 (US7815725B2 family) through 2015 (US10214646B2), indicating a sustained patent prosecution strategy building layers of protection around the core technology and its variants.
The ZycoTherm product line — including ZycoThermSP, ZycoThermSP2, Zycotherm EZ, and Zycotherm LS — represents commercially distinct formulations targeting different asphalt mix designs and contractor needs. A six-patent portfolio covering this product range creates significant IP thicket risk for competing WMA additive formulators. The involvement of Ergon Asphalt & Emulsions as co-movant suggests at minimum a commercial relationship with the patent holder, which may extend to exclusive licensing or co-enforcement rights — a combination that could complicate freedom-to-operate for market entrants.
Should you run an FTO against US8734581B2 and the ZycoTherm patent family?
Any company developing, manufacturing, or distributing warm-mix asphalt chemical additives — particularly amine-based or surfactant-based compounds marketed for lower-temperature paving — should treat this six-patent portfolio as a priority FTO target. The combination of broad portfolio coverage, active subpoena enforcement, and a co-enforcer (Ergon) with commercial reach across the U.S. asphalt market means that infringement exposure is not theoretical. Road construction material suppliers, asphalt contractors sourcing third-party additives, and international WMA additive makers seeking U.S. market entry face the highest risk.
PatSnap Eureka’s FTO Search Agent can map your product formulation or process against each of the six asserted patents in this case — analyzing claim scope, prosecution history estoppel, and key prior art references. Eureka can also monitor new filings by A.L.M. Holding and Ergon Asphalt & Emulsions across all U.S. district courts, alerting your team to enforcement activity before it reaches you. Start with a claim-by-claim landscape on US8734581B2 and cross-reference your chemistry against the dependent claims of the broader portfolio.
Run a freedom-to-operate analysis on US8734581B2 to assess your product’s exposure
Run FTO in Eureka →Similar warm-mix asphalt and road construction additive patent disputes
Explore related Rule 45 subpoena enforcement actions and patent infringement cases involving warm-mix asphalt additives in U.S. district courts.
What this case signals for the warm-mix asphalt IP landscape
A six-patent warm-mix asphalt portfolio being actively enforced via subpoena practice signals a sophisticated, multi-front litigation strategy.
Rule 45 subpoenas are a discovery weapon in patent enforcement — not just trial tools
A.L.M. Holding’s use of a miscellaneous action to compel third-party document production before — or alongside — primary patent litigation is a signal of aggressive enforcement posture. IP teams in the road construction and asphalt additive sector should assume that patent holders with large portfolios may pursue document discovery from distributors, customers, or contractors, not just accused infringers.
Without-prejudice dismissals preserve enforcement optionality — monitor compliance deadlines
The September 30, 2025 production deadline means this matter is not fully resolved. If HTAS fails to deliver, the movants can re-file with a stronger procedural record. In-house counsel tracking this dispute should flag the compliance date and watch for any subsequent filings in the Virginia Eastern District or the primary infringement forum — wherever that case is pending.
A.L.M. v Hi-Tech — key questions answered
The case was dismissed without prejudice on September 17, 2025. Hi-Tech Asphalt Solutions agreed to produce non-privileged documents responsive to Request Nos. 1–5 (dated on or after January 1, 2017) by September 30, 2025. The dismissal was stipulated by both parties under Fed. R. Civ. P. 41(a)(1)(A)(ii), with each side bearing its own costs. No merits ruling was issued.
Six U.S. patents were at issue: US8734581B2, US7815725B2, US9394652B2, US9175446B2, US7981466B2, and US10214646B2. These patents collectively cover warm-mix asphalt chemical additive technology associated with the ZycoTherm product family, including ZycoThermSP, ZycoThermSP2, Zycotherm EZ, and Zycotherm LS.
A miscellaneous action is used to enforce ancillary procedural rights — here, compliance with a Rule 45 third-party subpoena — independent of (or alongside) a primary patent infringement case pending elsewhere. It does not adjudicate infringement or validity. The Virginia Eastern District Court was likely chosen because HTAS or relevant documents were located in that jurisdiction, not necessarily because the primary patent dispute is pending there.
A without-prejudice dismissal leaves A.L.M. Holding and co-movant Ergon Asphalt & Emulsions free to re-file a motion to compel if Hi-Tech Asphalt Solutions fails to comply with the agreed production obligations. No claim preclusion attaches. The September 30, 2025 production deadline is the key milestone: non-compliance could trigger renewed enforcement proceedings, potentially with a stronger factual record of HTAS’s conduct.
The public record identifies Ergon Asphalt & Emulsions, Inc. as a co-movant but does not disclose the precise nature of its relationship to the ZycoTherm patents. This is consistent with Ergon holding a license — potentially an exclusive one — under some or all of the six patents, or having a co-enforcement right by agreement with A.L.M. Holding. IP professionals tracking this portfolio should investigate Ergon’s licensing or co-ownership position, as it may affect the standing and scope of any future enforcement action.
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