Time In Purgatory: Examining the Grant Lag for U.S. Patent Applications

By David Popp, Ted Juhl, Daniel K. N. Johnson. 2004

120 citations recorded by the source corpus.

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The nexus between science and industry: evidence from faculty inventions (2012, background): “For example, Popp et al. (2004) find that applications in newer, more complex technologies take significantly longer than other patent applications in the examination procedure.”
Compulsory Licensing - Evidence from the Trading with the Enemy Act (2012, unknown): “…names or untidy script than the human eye.10 8 More generally, the lag between applications and grants has been shown to vary over time and across technologies, depending, among other factors, on the complexity of patent applications and the workload of examiners (Popp, Juhl, and Johnson 2004).”
Do Formal Intellectual Property Rights Hinder the Free Flow of Scientific Knowledge? An Empirical Test of the Anti-Commons Hypothesis (2007, unknown): “18 An emerging literature has focused on the determinants of patent grant lag itself, including Popp et al. (2004), Regibeau and Rocket (2003), and Harhoff and Wagner (2005).”
Applicant and examiner citations in U.S. patents: An overview and analysis (2009, background): “Popp et al. (2004) suggest that an entity’s patenting experience may affect its patenting practices.”