Sigma-Aldrich Corporation v. Stonebrook

DISTRICT OF MASSACHUSETTS _________________________________________ ) SIGMA-ALDRICH CORPORATION, ) EMD MILLIPORE CORPORATION, ) and RESEARCH ORGANICS LLC ) d/b/a SAFC CLEVELAND, ) ) Plaintiffs ) ) Civil Action No. 23-cv-10140-DJC v. ) ) DAVID S. STONEBROOK, ) ) Defendant. ) _________________________________________ ) MEMORANDUM AND ORDER CASPER, J. July 12, 2025 I. Introduction Plaintiffs and Counterclaim Defendants Sigma-Aldrich Corporation (“Sigma-Aldrich”), EMD Millipore Corporation (“EMD Millipore”), and Research Organics LLC d/b/a SAFC Cleveland (“SAFC Cleveland”) (collectively,…