Plaintiff
21 cases as plaintiff.
Midwest Energy Emissions Corp., which rebranded as Birchtech Corp. in October 2024, is an environmental services and technology company headquartered in Corsicana, Texas. The company's shares trade publicly on the TSX Venture Exchange (TSXV: BCHT) and OTCQB (OTCQB: BCHT), having previously traded as MEEC. Tracing its corporate history, the business activities for mercury emission control technologies effectively began around 2008 through a subsidiary, though the entity has undergone several name changes since being incorporated in 2003. The company is relatively small, with approximately 11 full-time employees. As of July 2024, it reported annual sales of around $17.94 million and a market capitalization of approximately $70.6 million.
The company develops and delivers patented and proprietary solutions to the power industry, primarily focusing on mercury emission control for coal-fired utilities. Its core offering is the Sorbent Enhancement Additive (SEA) technology, a two-part process designed for comprehensive mercury capture in coal-fired flue gas. Additionally, through its ME2C Environmental division, which holds over 40 patents, the company is involved in extracting and processing rare earth elements. Since October 2024, under its WE2C Environmental brand, it has expanded to provide water purification solutions, specifically targeting PFAS/PFOS removal from potable water.
Midwest Energy Emissions Corp. exhibits a patent assertion posture, having appeared as a plaintiff in all two of its tracked U.S. patent litigation cases and as a defendant in none. This indicates the company actively asserts its intellectual property, which aligns with its description as an environmental technology firm with patented solutions. The cases have been filed in the U.S. District Court for the District of Delaware and the Southern District of Iowa.
Notable litigation includes Midwest Energy Emissions Corp. et al. v. Berkshire Hathaway Energy Company et al., filed in July 2024, and Midwest Energy Emissions Corp. et al. v. CERT Operations II LLC et al., filed in July 2019. These lawsuits seek injunctions and damages from alleged unlicensed users of its patent-protected mercury emissions technologies. The company's recent rebranding to Birchtech Corp. reflects its diversification into broader environmental technology sectors, including clean air and water treatment.
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Midwest Energy Emissions Corp. and Birchtech Corp. sued Evergy Kansas Central, Inc., asserting US Patent 10668430. The case was consolidated with MDL No. 3132 and terminated on September 24, 2025, via an Order of Dismissal filed in the related MDL.
Midwest Energy Emissions Corp. and Birchtech Corp. sued Evergy, Inc. and Evergy Kansas Central, Inc., asserting US Patent 10668430. The case experienced multiple transfers and partial dismissals, with claims against Evergy Kansas Central, Inc. ultimately consolidated into MDL No. 3132 and the case terminating on September 24, 2025.
A patent infringement suit by Midwest Energy Emissions Corp. and Birchtech Corp. against Evergy entities, initially filed in the Southern District of Iowa, later transferred and consolidated into a multidistrict litigation.
Midwest Energy Emissions Corp. initiated this action against Evergy Metro, Inc., asserting US Patent 10668430. The case was consolidated into MDL No. 3132, and Evergy, Inc. was dismissed by stipulation without reaching a merits verdict.
This case, involving US Patent 10668430, was filed by Midwest Energy Emissions Corp. against PacifiCorp. Transferred from the District of Wyoming, it was consolidated with MDL No. 3132 in the Southern District of Iowa.
Midwest Energy Emissions Corp. sued Wisconsin Power and Light Company, asserting US Patent 10668430, in Wisconsin. The case was terminated on January 30, 2025, after being transferred to the Southern District of Iowa for consolidation with MDL No. 3132.
This Multidistrict Litigation consolidates several cases involving US Patent 10668430, initiated by Midwest Energy Emissions Corp. (now Birchtech Corp.) against numerous energy companies. The MDL is open, and various motions have been addressed.
This Multidistrict Litigation centralizes multiple lawsuits alleging infringement of US patent 10933370 by various defendants related to mercury capture technologies, with the centralization order issued on December 12, 2024.
An infringement suit filed by Midwest Energy Emissions Corp. (now Birchtech Corp.) against Ameren Corp. and Union Electric Co., centralized as part of MDL No. 3132 in the Southern District of Iowa on December 12, 2024. US patent 10933370 is asserted.
An infringement suit filed by Midwest Energy Emissions Corp. (now Birchtech Corp.) against multiple defendants, centralized as part of MDL No. 3132 in the Southern District of Iowa on December 12, 2024. US patent 10933370 is asserted.
Midwest Energy Emissions Corp. filed this suit against Ameren Corp. and Union Electric Co. d/b/a Ameren Missouri, asserting US Patent 10668430. The case was closed on December 17, 2024, after being consolidated into MDL No. 3132.
Midwest Energy Emissions Corp. sued Berkshire Hathaway Energy Company and MidAmerican Energy Company, asserting US Patent 10668430. This case was filed in the Southern District of Iowa and subsequently consolidated into MDL No. 3132.
This multidistrict litigation consolidates several patent infringement lawsuits initially filed in Arizona, Missouri, and Iowa. Some defendants have reached license agreements with Birchtech, and claims against other defendants have been resolved.
A patent infringement suit by Midwest Energy Emissions Corp. against Berkshire Hathaway Energy Company and its subsidiaries, filed in the Southern District of Iowa, with some components transferred to other districts, and ultimately consolidated into an MDL.
A patent infringement suit by Midwest Energy Emissions Corp. against Ameren Corporation, filed in the Eastern District of Missouri and later consolidated into an MDL.
A patent infringement suit by Midwest Energy Emissions Corp. against Tucson Electric Power Company, filed in the District of Arizona and later consolidated into an MDL.
Midwest Energy Emissions Corp. and MES Inc. initiated this case against Arthur J. Gallagher & Co. and several energy companies, asserting US Patent 10668430. The case, filed in Delaware, is currently ongoing and has seen multiple filings and opinions.
Midwest Energy Emissions Corp. and MES Inc. (later Birchtech Corp.) sued 43 defendants for patent infringement. A jury trial concluded in March 2024 with a $57 million verdict against the remaining CERT Defendants. A final $78 million judgment was issued in December 2025, which has since been appealed.
A patent litigation case filed by Midwest Energy Emissions Corp. against Arthur J. Gallagher & Co. in the District of Delaware, which is currently ongoing.
Midwest Energy Emissions Corp. filed this case against Union Electric Co. d/b/a Ameren Missouri, asserting US Patent 10668430. It is a member case of the MDL and was consolidated into MDL No. 3132.
Midwest Energy Emissions Corp. filed an infringement suit, asserting US Patent 10668430, against an unspecified defendant in the District of Arizona. This case, identified by docket number 3:24-cv-08145, was consolidated into MDL No. 3132.