What is the Patent Cooperation Treaty (PCT)?Patent Cooperation Treaty • February 14th, 2017
Contract Type FiledFebruary 14th, 2017The PCT us a patent treaty concluded in 1970, amended in 1979, and modified in 1984 and 2001. It is open to States party to the Paris Convention for the Protection of Industrial Property. Instruments of ratification or accession must be deposited with the Director General of WIPO. Nowadays PCT has 144 members.