Defendant
6 cases as defendant.
Evergy Kansas Central, Inc. is an integrated, regulated electric utility operating as a wholly-owned subsidiary of Evergy, Inc.. Evergy, Inc. (NASDAQ: EVRG) is a publicly traded investor-owned utility headquartered in Kansas City, Missouri, with roots tracing back to 1882 through its predecessor companies, though the current entity formed from a 2018 merger of Westar Energy and Great Plains Energy. Evergy, Inc. has approximately 4,500-10,000 employees and reported a trailing 12-month revenue of approximately $5.96 billion as of December 31, 2025, with a market capitalization around $19 billion as of May 1, 2026.
Evergy Kansas Central, Inc. provides electricity to customers in Kansas. As part of the broader Evergy network, it contributes to the generation, transmission, distribution, and sale of electricity to approximately 1.7 million customers across Kansas and Missouri. Evergy emphasizes its commitment to delivering clean, safe, and reliable energy, with about half of the power supplied to homes and businesses coming from emission-free sources. The company also has interests in transmission projects, including a 50% ownership in Prairie Wind Transmission, LLC, a joint venture that provides transmission service in the Southwest Power Pool, Inc..
In terms of patent litigation, Evergy Kansas Central, Inc. maintains a posture of an operating company defending against assertions. The company has been named as a defendant in one tracked case and has no records as a plaintiff.
The single tracked case for Evergy Kansas Central, Inc. is Midwest Energy Emissions Corp. et al. v. Berkshire Hathaway Energy Company et al., filed in the Southern District of Iowa in July 2024. This litigation involves Evergy Kansas Central, Inc. as a defendant. Notably, Evergy Kansas Central, Inc. also holds a 50% interest in Prairie Wind Transmission, LLC, a joint venture that includes subsidiaries of Berkshire Hathaway Energy Company, which is also named in the case.
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.
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.
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 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.