We are currently developing a new site to host the Patent Manual of Practice and Procedure. The BETA version of this site is now available for you to review. The information and content displayed in the BETA site is only available for testing purposes. Do not use or reference the information in the BETA site when making any decisions or actions regarding IP rights. PCT Guideline References and Flow Chart

Date Published

The PCT guidelines contain 3 aspects of claim interpretation which need to be considered when construing the claims:

  1. Interpretation of terms and phrases in a claim which is addressed in paragraphs 5.20 and in the annex at paragraphs A5.20[1] and A5.20[2]
  2. Form and Content of Claims (independent, dependent, method claims, product claims) which is addressed in paragraphs 5.04-5.19
  3. Interpretation of particular types of claims (use, open and closed, means-plus function, product by process)  which is addressed in paragraphs 5.21-5.28

Aspects 2 and 3 are self explanatory as detailed in the PCT GL. A synopsis of the various forms and types of claims along with the catch phrases of the paragraphs are shown in the flow chart below. Examiners should consider their construction of claims keeping in view the relevant paragraphs in Chapter 5 of the PCT GL.

Claims Interpretation Flowchart

Back to top