The statistic illustrates the number of independent inventors in the United States between 1977 and 2015, by state. As of 2015, a total number of 150,525 independent inventors were residing in California at the time they were filing for a patent.
Number of independent inventors in the United States as of 2015, by state
* An independent inventor is an inventor whose patent, at
the time of grant, has ownership that is unassigned or assigned to an individual. The counts represent the number of times inventors are named on unassigned patents or on patents assigned to individuals. If a patent has more than one inventor, each inventor is counted. If an inventor has more than one patent, he or she is counted once for each patent. The following types of patents are counted here: utility, design, plant, and reissue patents, defensive publications, and statutory invention registrations.
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USPTO. (March 31, 2016). Number of independent inventors in the United States as of 2015, by state [Graph]. In Statista. Retrieved January 18, 2025, from https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed
USPTO. "Number of independent inventors in the United States as of 2015, by state." Chart. March 31, 2016. Statista. Accessed January 18, 2025. https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed
USPTO. (2016). Number of independent inventors in the United States as of 2015, by state. Statista. Statista Inc.. Accessed: January 18, 2025. https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed
USPTO. "Number of Independent Inventors in The United States as of 2015, by State." Statista, Statista Inc., 31 Mar 2016, https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed
USPTO, Number of independent inventors in the United States as of 2015, by state Statista, https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed (last visited January 18, 2025)
Number of independent inventors in the United States as of 2015, by state [Graph], USPTO, March 31, 2016. [Online]. Available: https://www.statista.com/statistics/256687/number-of-independent-inventors-in-the-us-by-state/?__sso_cookie_checker=failed
