Patent Owner (Birchtech Corp. as assignee, specific name for this case unknown)

Birchtech Corp., commonly known as Birchtech, is a publicly traded environmental technology company headquartered in Corsicana, Texas. Founded in 2008 as Midwest Energy Emissions Corp., the company rebranded to Birchtech Corp. in October 2024 and is listed on the NYSE American and TSX under the ticker BCHT. As of September 2025, Birchtech employs between 11 and 20 individuals. The company reported $4.2 million in revenue for Q1 2026 and a trailing 12-month revenue of $17.6 million as of December 31, 2025, with a market capitalization of $35.2 million as of May 13, 2026.

Birchtech specializes in advanced activated carbon technologies for air and water purification. Its core offerings include patented SEA® sorbent technologies designed for mercury emissions capture in the coal-fired utility sector. The company is also developing and providing disruptive water purification solutions, focusing on the removal of "forever chemicals" such as PFAS and PFOS from potable water and industrial wastewater. This includes products like SEA-IX™ nuclear-grade ion exchange resins, activated carbon, catalytic carbon, and multi-media systems, alongside turnkey water treatment services and pilot testing. Birchtech operates a manufacturing and distribution warehouse in Corsicana, Texas, and maintains laboratory facilities in Grand Forks, North Dakota, and State College, Pennsylvania.

Birchtech Corp. is an operating company with an active patent enforcement posture. While the provided case data shows one instance as a defendant in a Patent Trial and Appeal Board (PTAB) proceeding, indicating a challenge to one of its patents, the company has a history of asserting its intellectual property. It recently secured an approximately $78 million final judgment from the U.S. District Court for the District of Delaware in a patent infringement case that originally involved 43 defendants, including major power utilities.

A notable recent event for Birchtech was its uplisting to the NYSE American in February 2026, which included a concurrent public offering that significantly strengthened its balance sheet. The company's patent portfolio has expanded since its acquisition of the full SEA® patent portfolio in May 2017, covering both mercury emissions capture and water purification technologies.