What are the key requirements for an abstract in a PCT application?

The key requirements for an abstract in a PCT application are:

  • It should be a summary of the disclosure as contained in the description, claims, and drawings.
  • It should indicate the technical field of the invention.
  • It should clearly state the technical problem and its solution through the invention.
  • It should mention the principal use(s) of the invention.
  • It should be concise, preferably 50-150 words in English.
  • It should include reference signs for main technical features illustrated in drawings.

As stated in MPEP 1826: “The abstract shall be as concise as the disclosure permits (preferably 50 to 150 words if it is in English or when translated into English).

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Tags: Abstract, international application, PCT, Technical Disclosure