Abstract
Closely related to restriction is the question of double patenting. Until 1952, a restriction requirement that improperly led the applicant to file two cases on subject matter not independent and distinct could lead to invalidity. Under the 1952 Patent Act, a “double patenting” rejection or invalidity ground is barred where the second patent was granted based upon a restriction requirement, even apparently if erroneously made.
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© 1992 Harold C. Wegner
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Wegner, H.C. (1992). Double Patenting. In: Patent Law in Biotechnology, Chemicals & Pharmaceuticals. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-21958-2_39
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DOI: https://doi.org/10.1007/978-1-349-21958-2_39
Publisher Name: Palgrave Macmillan, London
Print ISBN: 978-1-349-21960-5
Online ISBN: 978-1-349-21958-2
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