Plaintiff

Cottbus Associates, LLC

1 case as plaintiff.

Also appears as a defendant in 1 case View as defendant

Company profile

Cottbus Associates, LLC is a legal entity primarily known through its involvement in patent litigation. Public information regarding its specific headquarters, founding year, ownership, employee count, or revenue is not readily available. The company does not appear to operate as a standalone provider of distinct products or services in public records.

Cottbus Associates, LLC's litigation posture indicates its involvement as both a plaintiff and a defendant in patent disputes. The company has been a defendant in the U.S. District Court for the District of Delaware in the case Midwest Energy Emissions Corp. et al. v. CERT Operations II LLC et al., initiated in July 2019. In this litigation, Midwest Energy Emissions Corp. (now known as Birchtech Corp.) sued a group of affiliated entities, including CERT Operations II LLC, which are described as having refined coal industry operations, for infringing patents related to mercury emissions reduction technologies.

Following a jury verdict in March 2024, Midwest Energy Emissions Corp. was awarded $57 million in damages, which subsequently increased to approximately $78 million with interest in late 2025/early 2026. Cottbus Associates, LLC is now listed as a plaintiff, alongside CERT Operations II LLC, in an appeal of this verdict at the Court of Appeals for the Federal Circuit (CERT Operations II LLC et al. v. Birchtech Corp.), filed in January 2026. This suggests Cottbus Associates, LLC is associated with the group of companies that were defendants in the original infringement suit and is actively involved in challenging the prior judgment.

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CERT Operations II LLC et al. v. Birchtech Corp.

On Appeal
Docket:
26-1403
Filed:
2026-01-28
Patents:10596517

This is an ongoing appeal filed by the CERT Defendants against Birchtech Corp., challenging the U.S. District Court of Delaware's $78 million final judgment in case 1:19-cv-01334.