Defendant
1 case as defendant.
Birchtech Corporation (formerly Midwest Energy Emissions Corp.) is a publicly traded environmental technology company founded in 2008, headquartered in Corsicana, Texas. Trading under the ticker BCHT on the TSX and OTCQB, the company reported a trailing 12-month revenue of $17.6 million as of December 31, 2025, and had a market capitalization of $35.2 million as of May 13, 2026. Birchtech employs approximately 11-20 individuals.
The company specializes in activated carbon technologies, providing innovative solutions for air and water purification. Its core offerings include patented SEA® sorbent technologies, which are widely adopted for mercury emissions capture in the coal-fired utility sector. Birchtech is also actively developing disruptive water purification technologies, focusing on the removal of "forever chemicals" such as PFAS and PFOS from potable and industrial water. The company operates manufacturing and distribution facilities in Corsicana, Texas, and maintains laboratories in Pennsylvania and North Dakota for research and development.
According to our tracked case data, Birchtech Corporation has appeared as a defendant in one case, a Patent Trial and Appeal Board (PTAB) challenge, and has no plaintiff cases. However, publicly available information indicates that Birchtech is an operating company with a robust intellectual property portfolio that it actively defends and asserts. Under its former name, Midwest Energy Emissions Corp. (ME2C Environmental), the company initiated patent infringement lawsuits in U.S. District Courts against various utilities regarding its mercury emissions reduction technologies, leading to a $57 million jury award in March 2024. Birchtech has also been a patent owner defending multiple patents in numerous Inter Partes Review (IPR) proceedings at the PTAB, primarily concerning chemical and materials engineering patents.
A notable tracked case is Union Electric Company v. Birchtech Corporation, an Inter Partes Review (IPR2025-01324) at the Patent Trial and Appeal Board challenging Birchtech's patent US10933370B2. Additionally, several PTAB challenges against Birchtech patents by various utility companies, including those involved in prior district court litigation, have been noted, with some terminating due to settlement or procedural non-institution. The company's patent defense strategy also included a significant Director Review decision in PacifiCorp v. Birchtech Corp. (IPR2025-00687), which clarified rules regarding parallel petitions at the PTAB.
Union Electric Company filed an Inter Partes Review petition against Birchtech Corporation's US Patent 10668430 with the PTAB. The petition was not instituted on procedural grounds.