Budapest - The International Microorganism Deposit System

The Budapest System provides a practical business solution when pursuing patents involving biological material in some 80 countries through the recognition of one international recognized deposit with an international depositary authority (IDA).

Adopted in 1977, the Budapest Treaty concerns a specific topic in the international patent process: inventions involving microorganisms. All states party to the Treaty are obliged to recognize microorganisms deposited as a part of the patent disclosure procedure with an international Depositary Authority (IDA), irrespective of where the depositary authority is located. In practice this means that the requirement to submit microorganisms to each and every national authority in which patent protection is sought no longer exists.

The Budapest Treaty offers applicants an efficient and cost-effective means of meeting the disclosure requirements associated with patenting microorganisms. (Photo: DMSZ)

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The Budapest Guide

The Guide contains information on the procedures and requirements concerning the deposit of microorganisms provided for under the Budapest Treaty. It provides practical advice for both persons depositing microorganisms for patent purposes and for anyone wishing to obtain samples of such microorganisms The Guide is regularly updated.


Number of deposits/samples furnished under Rule 11 of the regulations of the Budapest Treaty - based on information requested by WIPO from international depositary authorities in annual surveys.

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