Amendments to the PCT Regulations (since April 1, 2002)
- Archive
- July 1, 2024
![Amendments to the PCT Regulations PPT](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2022
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2020
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2019
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2018
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2017
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2016
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2015
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2014
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- January 1, 2013
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2012
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2011
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2010
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2009 and other practice changes
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- PCT Supplementary International Search Service (January 1, 2009)
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- January 1, 2009
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- July 1, 2008
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- April 1, 2007 FAQs
- April 1, 2006
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/play_video.gif)
- April 1, 2005
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/ppt.svg)
- January 1, 2004
![Amendments to the PCT Regulations](/export/sites/www/shared/images/icon/new/play_video.gif)
- January 1, 2003: Rule 49.6: Reinstatement of Rights
- April 1, 2002: Article 22(1): Effects of modification of this time limit