United States Defensive Publication

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Example of United States Defensive Publication UST0109201.jpg
Example of United States Defensive Publication

A United States Defensive Publication is a published patent application for which the inventor has elected not to get patent coverage. Defensive Publications were made between April 1968 and May 8, 1985. The program, called Defensive Publication Program, was replaced by the statutory invention registration program, which itself was discontinued after the Leahy-Smith America Invents Act (AIA) entered into force in 2013. [1]

US Defensive Publications can be searched in the United States Patent and Trademark Office's (USPTO) patent search web page. [2] They are designated by a "T" in the publication number, the letter "T" referring to "Technical disclosure". [1]

Defensive publications may be cited as prior art against patent applications, but only as of their publication dates. [3] This is in contrast to statutory invention registrations, which are prior art as of their filing dates in the same manner as U.S. patents. [3] However, a defensive publication may be the subject of an interference proceeding for five years from its earliest effective U.S. filing date. [1]

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  1. The application must disclose the invention in sufficient detail that another person of ordinary skill in the art can make and use the invention without undue experimentation ;
  2. The application complies with the requirements for printing, as set forth in regulations of the Director of the patent office;
  3. The applicant waives the right to receive a patent on the invention within such period as may be prescribed by the Director; and
  4. The applicant pays application, publication, and other processing fees established by the Director.

The IBM Technical Disclosure Bulletin was a technical publication produced by IBM between 1958 and 1998. The purpose of the Bulletin was to disclose inventions that IBM did not want their competitors to get patents on. The Bulletin was a form of defensive publication. By publishing the details of how to make and use the invention, patent examiners could have a searchable source of prior art that they could cite against subsequent patent applications filed by others on the same or similar inventions.

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Title 35 of the United States Code is a title of United States Code regarding patent law. The sections of Title 35 govern all aspects of patent law in the United States. There are currently 37 chapters, which include 376 sections, in Title 35.

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