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SELECTED MATTER

GlaxoSmithKline —
Momelotinib

Patent oppositions to applications 249038 and 276948

Unipharm opposed Patent Application 249038 and its divisional application 276948, concerning crystalline Form II of momelotinib dihydrochloride monohydrate and deuterated variants.

THE ISSUES

Inventive step, sufficiency of disclosure and claim support.

The proceedings addressed whether the claimed crystalline form involved an inventive step over the prior art and whether the patent specifications taught the invention sufficiently for a skilled person to perform it.

The Patent Office also examined the statutory requirements governing the relationship between the claims and the description.

OUTCOME

The oppositions were accepted.

The Patent Office held that the applications did not satisfy the requirements of sections 5, 12 and 13 of the Patents Law. In particular, it found lack of inventive step and concluded that the described methods did not enable implementation of the claimed invention as required by section 12.

Israel Patent Office Oppositions to Patent Applications 249038 and 276948 · main decision of 4 February 2026 Read decision (PDF) →