World Intellectual Property Organization

Patent Law Treaty (PLT)

The Patent Law Treaty (PLT) was adopted in 2000 with the aim of harmonizing and streamlining formal procedures with respect to national and regional patent applications and patents and making such procedures more user friendly. With the significant exception of filing date requirements, the PLT provides the maximum sets of requirements the office of a Contracting Party may apply.


Additional information

  • Patent Law Treaty Web Forum
  • Explanatory Notes on the Basic Proposal for the Patent Law Treaty and the Regulations under the Patent Law Treaty

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