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Patent Application Information Retrieval (PAIR) is an online service provided by the United States Patent and Trademark Office to allow users to see the prosecution histories of United States patents and patent applications and obtain copies of documents filed therein. There are two services: Public PAIR, which allows the general public to ...
Wikipedia entry for Google Patents.Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office.
The database initially focused on the Patent Cooperation Treaty (PCT) applications, which are international patent applications filed under the PCT system. In 2008, it was transformed into a search system for not only published PCT applications, but also national and regional patent collections. [2] [3] In 2009 it counted with 9 data ...
At the end of 1997, the number of applications pending was 275,295. Therefore, over those eleven years there was a 439% increase in the number of pending applications. [136] December 2012 data showed that there was 597,579 unexamined patent applications in the backlog. [137] During the four years since 2009, more than a 50% reduction was achieved.
Espacenet (formerly stylized as esp@cenet) [1] [2] is a free online service for searching patents and patent applications. Espacenet was developed by the European Patent Office (EPO) together with the member states of the European Patent Organisation .
The recommended use is the two-letter country code followed by the patent document number and then the kind code, e.g., "US 7,654,321 B1" for U.S. Patent No. 7,654,321 where there was no previously-published patent application publication, and "US 2003/1234567 A1" for U.S. Patent Application Publication No. 2003/1234567, published in 2003. [1]
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