Open Claim

A patent claim that recites a series of limitations or elements, but by its language means that the addition of new un-recited elements to a product or process would not prevent infringement, e.g., if the claim is to a+b+c, a product or process consisting of a+b+c+d would still infringe. Most patent claims are drafted as Open Claims. See Claims, Closed Claim, Comprising, Consisting of.

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