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Main text(s) Main text(s) English Patent Act (Act No. 121 of April 13, 1959, as amended up to October 1, 2021)     

Additional Text(s) WTO Notifications Coversheet (3 text(s)) WTO Notifications Coversheet (3 text(s)) English Patent Act (Act No. 121 of April 13, 1959, as amended up to October 1, 2021) French Loi sur les brevets (loi n° 121 du 13 avril 1959, telle que modifiée jusqu'au 1er octobre 2021) Spanish Ley de Patentes (Ley Nº 121 de 13 de abril de 1959, modificada al 1 de octubre de 2021)

Legislation Supersedes (17 text(s)) Supersedes (17 text(s))

• Patent Act (Act No. 121 of April 13, 1959, as amended up to June 21, 2021) (JP247)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2020) (JP234)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to October 1, 2020) (JP237)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2019) (JP225)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to July 1, 2019) (JP228)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 33 of May 30, 2018) (JP218)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to December 30, 2018) (JP219)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 55 of July 10, 2015) (JP206)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 36 of May 14, 2014) (JP198)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 63 of May 13, 2011) (JP177)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 16 of April 18, 2008) (JP101)
• Patent Act (Act No. 121 of 13 April 1959, as amended up to 2006) (JP156)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 75 of June 29, 2005) (JP071)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 79 of June 4, 2004) (JP062)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 47 of May 23, 2003) (JP052)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 220 of December 22, 1999) (JP036)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to Act No. 116 of December 14, 1994) (JP006)

Is superseded by (3 text(s)) Is superseded by (3 text(s))

• Patent Act  (JP274)
• Patent Act  (JP262)
• Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2022) (JP256)

Treaties Relates to (3 records) Relates to (3 records)

• Paris Convention (March 20, 1883)
• Patent Cooperation Treaty (June 19, 1970)
• Agreement Establishing the World Trade Organization (WTO) (April 15, 1994)

WTO Document Reference

IP/N/1/JPN/59

IP/N/1/JPN/P/2