3M Renews Hand Sanitizer Patent Suit Against Gojo

Law360, New York (July 12, 2011, 12:59 PM EDT) -- 3M Co. on Monday relaunched a patent fight in Minnesota against Gojo Industries Inc., accusing the maker of Purell hand sanitizer of violating a patent for foaming disinfectants after claiming it was no longer producing the allegedly infringing product.

The complaint is the second 3M has filed against Gojo over the patent covering systems and methods of using foamable alcohol compositions. 3M first hit Gojo with patent allegations related to U.S. Patent Number 7,651,990 — titled "foamable alcohol compositions comprising alcohol and a silicone surfactant, systems...
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