In a blow for biotechnology company, Biogen, a US federal judge has ruled that its lone surviving patent on multiple-sclerosis drug Tecfidera (dimethyl fumarate) should remain invalid because the matter had already been resolved by another court.
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29 September 2020 The US Court of Appeals for the Federal Circuit has sided with EMD Serono and Pfizer over the invalidation of a multiple sclerosis drug patent, in a defeat for biotech company Biogen.
23 March 2017 A Biogen patent covering the drug Tecfidera has been upheld by the Patent Trial and Appeal Board, after a challenge from Kyle Bass’s Coalition for Affordable Drugs.
