The grant rate data from the USPTO shows a significant upward trend since 2010, largely influenced by Director David Kappos's applicant-friendly reforms after a low point in 2009.
Kathi Vidal's appointment in April 2022 has introduced recent changes in USPTO practices, leading to a modest decline in the grant rate from its highs in 2020-2021.
The USPTO's grant rate analysis focuses only on published applications, omitting unpublished applications that were kept secret and those that issued too quickly.
The upward trajectory of patent grant rates, peaking around 75-80%, reflects an administrative shift towards a more supportive environment for inventors under recent leadership.
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