A patent for a method for testing for Progressive Multifocal Leukoencephalopathy (PML) was invalid on several grounds. In any event, the claimant’s activities outside the UK would not have infringed a valid UK patent.
A patent for a method for testing for Progressive Multifocal Leukoencephalopathy (PML) was invalid on several grounds. In any event, the claimant’s activities outside the UK would not have infringed a valid UK patent.
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