Winston & Strawn

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John R. McNair of Winston & Strawn LLP in Chicago handles patent litigation across pharmaceuticals, chemicals, and electronics with expertise in Hatch-Waxman Act cases.

Winston & Strawn: IP firm in Chicago

John R. McNair of Winston & Strawn LLP, based at 35 W Wacker Dr, Chicago, IL, is an Of Counsel attorney with extensive experience in patent litigation. His practice includes:

  • Pharmaceutical patent litigation under the Hatch-Waxman Act
  • Specialized expertise in New Chemical Entity cases
  • Patent disputes involving diverse technologies from veterinary products to electronics

With a technical background in chemical engineering, McNair has achieved notable victories in intellectual property cases, including a precedent-setting invalidation of a pharmaceutical compound patent using a lead compound theory, affirmed by the Federal Circuit.

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      June 30, 2025 4:34 pm
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