In UK patent litigation, an Arrow declaration is a declaration or order sought, for reasons of legal certainty, from a court that a product (or process) to be launched was old (i.e., not novel) or obvious in patent law terms at a particular date, so that the product (or process) cannot be affected by (i.e., cannot infringe) any later granted patent, which would itself necessarily also either lack novelty or inventive step. The order is named after Arrow Generics Ltd.
In UK patent litigation, an Arrow declaration is a declaration or order sought, for reasons of legal certainty, from a court that a product (or process) to be launched was old (i.e., not novel) or obvious in patent law terms at a particular date, so that the product (or process) cannot be affected by (i.e., cannot infringe) any later granted patent, which would itself necessarily also either lack novelty or inventive step. The order is named after Arrow Generics Ltd.
Source: Wikipedia "Arrow declaration" · CC BY-SA 4.0
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