Obtained Freedom to Operate for Sherwin-Williams through Successful Defense of Patent Infringement Case Involving Antimicrobial Chemicals

February 11, 2020

Arch Chemicals, Inc. v. Sherwin-Williams Company

Robins Kaplan LLP represented The Sherwin-Williams Company and its predecessor The Valspar Corporation in a patent infringement case involving alleged infringement of patents covering antimicrobial biocide compositions. 

The case resolved with the grant of a covenant not to sue issued to The Sherwin-Williams Company following submission of Petitions for inter partes review before the USPTO Patent Trial and Appeal Board (PTAB).

This case was a significant win for our client and provided the freedom to operate across a broad range of accused products.
Past results are reported to provide the reader with an indication of the type of litigation we practice. They do not and should not be construed to create an expectation of result in any other case, as all cases are dependent upon their own unique fact situation and applicable law.

Christopher K. Larus


Chair, National IP and Technology Litigation Group

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