7 known cases. View patent page →
An IPR filed by Union Electric Company against Birchtech Corp. concerning US patent 10933370, which was terminated on November 20, 2025.
An IPR filed by Pacificorp et al against Birchtech Corp. concerning US patent 10933370, which was terminated on February 10, 2026.
An IPR concerning US patent 10933370, filed against Birchtech Corp., which concluded in a settlement.
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.
An infringement suit filed by Birchtech Corp. against Evergy, Inc. et al. concerning US patent 10933370, which was transferred to the U.S. District Court for the Southern District of Iowa, likely as part of the ongoing MDL.