# 2025-11187: Patent Fight Targets Boiler Protection in Absorption Refrigeration Systems

2025-11187, Certain Boiler Protection for Absorption Refrigeration Systems and Components Thereof; Institution of Investigation, is a Federal Register notice from International Trade Commission published 2025-06-18, effective 2025-06-13; PRIA reads it as touching household money (as of 2026-11-03).

- Canonical: https://policyrisk.com/federal-register/2025-11187
- As of: 2026-11-03
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2025-11187
- Title: Certain Boiler Protection for Absorption Refrigeration Systems and Components Thereof; Institution of Investigation
- Type: Notice
- Agencies: International Trade Commission
- Citation: 90 FR 26066
- Published: 2025-06-18
- Effective: 2025-06-13
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-11-03

## In one line

Patent Fight Targets Boiler Protection in Absorption Refrigeration Systems

## Summary

The U.S. International Trade Commission is launching an investigation into certain boiler protection parts used in absorption refrigeration systems. This affects companies importing or selling these parts in the U.S., following a complaint about patent infringement filed by ARPC LLC and Paul Unmack. If the complaint holds, import bans or sales restrictions could start soon, impacting businesses and possibly saving money for patent holders.

## Abstract

Notice is hereby given that a complaint was filed with the U.S. International Trade Commission on May 14, 2025, under section 337 of the Tariff Act of 1930, as amended, on behalf of ARPC LLC and Paul Unmack of Butte, Montana. A supplement was filed on May 23, 2025. The complaint alleges violations of section 337 based upon the importation into the United States, the sale for importation, and the sale within the United States after importation of certain boiler protection for absorption refrigeration systems and components thereof by reason of the infringement of certain claims of U.S. Patent No. 8,056,360. The complaint further alleges that an industry in the United States exists as required by the applicable Federal Statute. The complainants request that the Commission institute an investigation and, after the investigation, issue a general exclusion order, or in the alternative a limited exclusion order, and cease and desist orders.

## Effects PRIA read

- Investigation may lead to import bans: cost, medium. On June 13, 2025 the Commission instituted an investigation into alleged infringement of claims 1, 4, 6, and 10 of U.S. Patent No. 8,056,360 for certain boiler protection products. The complainants (ARPC LLC and Paul N. Unmack) asked the Commission to issue a general exclusion order, or alternative…
- Product scope: RV refrigerator boiler parts: cost, medium. The investigation's defined scope is the plain-language category "RV refrigerator boiler protection and their components and accessories." If you import, sell for importation, or sell within the United States products in that category, your products are included in this investigation instituted Jun…

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## Sources
- [2025-11187 on federalregister.gov](https://www.federalregister.gov/documents/2025/06/18/2025-11187/certain-boiler-protection-for-absorption-refrigeration-systems-and-components-thereof-institution-of)
- [2025-11187 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-06-18/pdf/2025-11187.pdf)

## Related
- [Previous: 2025-11185, Center for Scientific Review; Notice of Closed Meetings](https://policyrisk.com/federal-register/2025-11185)
- [Next: 2025-11188, Notice of Intent To Grant an Exclusive Patent License](https://policyrisk.com/federal-register/2025-11188)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2025-11187 (as of 2026-11-03).