In former United States patent law, a statutory invention registration (SIR) was a publication of an invention by the United States Patent and Trademark Office (USPTO).
[1] The publication was made at the request of the applicant (i.e. inventor(s) or assignee(s)).
[4] Statutory invention registrations had the kind code H.[5] As of the 1999 American Inventors Protection Act, however, most patent applications filed in the US have been published 18 months after they were filed.
These published patent applications serve a similar purpose to a statutory invention registration.
Statutory invention registrations are no longer available under U.S. law since the Leahy-Smith America Invents Act (AIA) entered into force in 2013.