Amendments to the PCT Regulations Archive

• July 1, 2012 [PPT]
• July 1, 2011 [PPT]
• July 1, 2010 [PPT]
• July 1, 2009 and other practice changes [PPT]
• PCT Supplementary International Search Service (January 1, 2009) [PPT]
• January 1, 2009 [PPT]
• July 1, 2008 [PPT]
• April 1, 2007 [PPT] [Video]
• April 1, 2006 [PPT] [Video]
• April 1, 2005 [PPT]
• January 1, 2004 [PPT] [Video]