Saturday 13th August 2022

Electronic Priority Document Exchange (PDX) Program

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This site provides useful information for applicants that wish to take advantage of the electronic priority document exchange (PDX) program.  Use of PDX avoids the fee associated with ordering a certified priority document for each office of subsequent filing and the costs of transmitting those certified copies to foreign associates or foreign intellectual property (IP) offices.  The United States Patent and Trademark Office (USPTO) transmits certain U.S. priority applications as-filed to any foreign IP office that participates in the priority document exchange program (participating office) and retrieves/accesses certain foreign priority applications as-filed from the participating offices.  For U.S. applications filed on or after January 01, 2022, the priority document exchange program is exclusively managed under the World Intellectual Property Organization Digital Access Service (WIPO DAS) Exchange.

 

Overview of participation by the USPTO

The USPTO exchanges priority documents with other foreign IP offices via the WIPO DAS Exchange (see WIPO DAS Exchange with Participating Offices below).  

 

Access to U.S. applications by participating offices

   AUTHORIZATION TO PERMIT ACCESS

Access to a U.S. priority application may be provided to a participating office pursuant to 37 CFR 1.14(h)(1) if the application contains written authority granting such access.  The ADS form (PTO/AIA/14) includes a section allowing applicants to provide the USPTO with authorization to permit a participating office access to a U.S. priority application.  To be effective, the ADS form containing the appropriate authorization language must be properly signed and be submitted with the filing of the U.S. priority application.   

Please note that an ADS submitted after the filing of an application CANNOT be used to provide or rescind the authorization to permit access.  Instead, applicants should use form PTO/SB/39 (or an applicant-generated equivalent) to provide or rescind the authorization for access under 37 CFR 1.14(h)(1) after the filing of the application.

   FILING RECEIPT INDICATION OF AUTHORIZATION TO PERMIT ACCESS

The filing receipt of the U.S. application will indicate whether applicant has provided written authority for access pursuant to 37 CFR 1.14(h)(1).  Applicants should inspect the application filing receipt and request a corrected filing receipt if authorization for access under 37 CFR 1.14(h)(1) was incorrectly captured.

   LIMITATIONS OF AUTHORIZATION

An authorization to permit access will not be recorded in international applications filed with the United States Receiving Office (RO/US).  Therefore, for these applications, the applicant must use alternative methods to obtain and transmit the certified copies to foreign IP offices. 

   ACCESS VIA WIPO DAS EXCHANGE

For WIPO DAS accessing offices where a subsequently filed application claims priority to an earlier filed U.S. application in which authorization for access is given, the applicant must provide the U.S. application number, filing date, and the WIPO DAS access code (i.e., the 4-digit confirmation number indicated on the filing receipt and electronic acknowledgement receipt of the U.S. application). 

The International Bureau, in its capacity as a WIPO DAS accessing office, may access U.S. applications in which authorization for access is given.  Therefore, for international applications filed under the Patent Cooperation Treaty (PCT), irrespective of the receiving office chosen, an applicant may request the IB to retrieve via the WIPO DAS Exchange a copy of an earlier U.S. application to which priority is claimed and in which authorization for access is given (PCT Rule 17.1(b-bis)).  In such case, the applicant must claim priority to the earlier U.S. application and provide the WIPO DAS access code (i.e., the 4-digit confirmation number) for the earlier U.S. application (see Box No. VI of the Request (Form PCT/RO/101)).

NOTE: For international applications filed with the RO/US, the applicant should check the appropriate item in Box No. VI of the Request (Form PCT/RO/101) to request the RO/US to prepare and transmit to the International Bureau a certified copy of any earlier U.S. application to which priority is claimed (PCT Rule 17.1(b)).  This service is independent from the PDX program. 

 

Retrieval of foreign priority applications by the USPTO  

   WIPO DAS EXCHANGE WITH PARTICIPATING OFFICES

By notification on April 20, 2009, the USPTO expanded its PDX program by agreement with the World Intellectual Property Organization (WIPO) to participate in the multilateral exchange of certain priority documents with other IP offices participating in the WIPO Digital Access Service (DAS) for Priority Documents.  The list of WIPO DAS participating offices and information concerning the scope of available priority documents are maintained by the WIPO.

For successful retrieval, it is important that the foreign priority claim identify the country/office code and the foreign priority application number in the recommended format.

The participating offices, the types of applications that may be available for retrieval by the USPTO from each participating office, and the recommended application number formats for each participating office are set forth in the table below: 

Table of WIPO DAS participating offices (as of January 01, 2022)
National/ Regional Utility Model Industrial Design Hague International Design PCT International Participating Office Recommended Application Number Format
AR AR       Argentina PYYYY01NNNNN
MYYYY01NNNNN
AT AT AT   RO/AT Austria A NNNNN/YYYY
GM NNNNN/YYYY
MU NNNN/YYYY
PCT/ATYYYY/NNNNNN
AU   AU   RO/AU Australia YYYYNNNNNN
PCT/AUYYYY/NNNNNN
BR   BR   RO/BR Brazil 10YYYYNNNNNNN
30YYYYNNNNNNN
PCT/BRYYYY/NNNNNN
CA   CA   RO/CA Canada

NNNNNNN
NNNNNN
PCT/CAYYYY/NNNNNN

CL CL CL   RO/CL Chile NNNNN-YYYY
PCT/CLYYYY/NNNNNN
CN CN CN   RO/CN People’s Republic of China YYYY-1NNNNNNN.X
YYYY-2NNNNNNN.X
YYYY-3NNNNNNN.X
PCT/CNYYYY/NNNNNN
CO CO CO   RO/CO Colombia NCYYYY/NNNNNNN
PCT/COYYYY/NNNNNN
DK       RO/DK Denmark PA YYYY NNNNN
PCT/DKYYYY/NNNNNN
EA       RO/EA Eurasian Patent Organization YYYYNNNNN
PCT/EAYYYY/NNNNNN
EE EE       Estonia PYYYYNNNNN
UYYYYNNNNN
    EM     European Union Intellectual Property Office NNNNNNNNN-NNNN
EP       RO/EP European Patent Office

YYNNNNNN
PCT/EPYYYY/NNNNNN

ES ES ES   RO/ES Spain PYYYYNNNNN
UYYYYNNNNN
DNNNNNNN
PCT/ESYYYY/NNNNNN
FI FI     RO/FI Finland YYYYNNNN
UYYYYNNNN
PCT/FIYYYY/NNNNNN
FR FR FR   RO/FR France

YYNNNNN
YYYYNN
PCT/FRYYYY/NNNNNN

GB         United Kingdom YYNNNNN.X
GE GE GE   RO/GE Georgia AP YYYY NNNNN
AD YYYY NNNNN
PCT/GEYYYY/NNNNNN
     

     IB          (Practice Tip #5)

RO/IB International Bureau of the World Intellectual Property Organization

WIPONNNNN
WIPONNNNNN
NNNNNNNNN
PCT/IBYYYY/NNNNNN

IL   IL   RO/IL Israel NNNNNN
PCT/ILYYYY/NNNNNN
IN   IN   RO/IN India YYYYNNNNNNNN
PCT/INYYYY/NNNNNN
IT IT IT   RO/IT Italy 10YYYYNNNNNNNNN
20YYYYNNNNNNNNN
40YYYYNNNNNNNNN
PCT/ITYYYY/NNNNNN
JP JP JP     Japan YYYY-NNNNNN
YYYY-NNNNNN U
YYYY-NNNNNN D
KR KR KR     Republic of Korea 10-YYYY-NNNNNNN
20-YYYY-NNNNNNN
30-YYYY-NNNNNNN
LV         Latvia PYYYYNNNNNN
MA       RO/MA Morocco NNNNN
PCT/MAYYYY/NNNNNN
MX MX MX   RO/MX Mexico A/YYYY/NNNNNN
U/YYYY/NNNNNN
F/YYYY/NNNNNN
PCT/MXYYYY/NNNNNN
NL       RO/NL Netherlands NNNNNNN
PCT/NLYYYY/NNNNNN
NO   NO   RO/NO Norway YYYYNNNN
PCT/NOYYYY/NNNNNN
NZ         New Zealand NNNNNN
SE       RO/SE Sweden YYNNNNNN
PCT/SEYYYY/NNNNNN

NOTE: The legacy Direct Bilateral Exchange mode (where retrieval was managed outside of the WIPO DAS and was based on the foreign priority claim information) only applies to EP applications to which priority is claimed in a U.S. application filed before January 01, 2022. For U.S. applications filed on or after January 01, 2022, successful retrieval of an EP application to which priority is claimed will require the EP application to be registered into the WIPO DAS exchange and the WIPO DAS access code must be provided to the USPTO.

For U.S. applications filed prior to January 01, 2022, the WIPO DAS access code will not be required; however, effective June 30, 2023, the USPTO will be unable to retrieve EP priority applications without a WIPO DAS access code. Therefore, applicants are encouraged to review U.S. applications filed prior to January 01, 2022, that claim priority to an EP application for which a WIPO DAS access code was not provided, to enable successful retrieval by the USPTO of the EP priority application. 

   RETRIEVAL PROCESS

The retrieval process for electronic priority document exchange includes several practice tips that will help…

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