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<label for="tab3">Scope of Documents</label>
<label for="tab4">Unavailability</label>
<label for="tab5">Lost Codes</label>
<label for="tab6">Overview of WIPO DAS use</label>
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<!-- Tab labels -->
<div class="wipodas-tablabels">
<label for="tab1">What is WIPO DAS?</label>
<label for="tab2">Participating Offices</label>
<label for="tab3">Scope of Documents</label>
<label for="tab4">Unavailability</label>
<label for="tab5">Lost Codes</label>
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<!-- Panels -->
<div class="wipodas-panels">
<!-- Tab 1 -->
<div id="p1" class="wipodas-panel wipodas-acc">
<details open>
<summary>What is WIPO DAS?</summary>
<div class="acc-body">
<p>The WIPO Digital Access Service (“DAS”), available at <a href="https://www.wipo.int/das/en/">https://www.wipo.int/das/en/</a>, allows you to meet requirements for providing priority and similar documents in respect of participating Offices, without the need to obtain and send multiple certified paper copies of an application.</p>
<p>Instead, you ask the Office where you are claiming priority (“Office of Second Filing” or OSF) to download a copy of the document directly from a digital library, normally held by or on behalf of the Office where the earlier application was filed from which priority is claimed (“Office of First Filing” or OFF).</p>
</div>
</details>
<details open>
<summary>Security and Permissions</summary>
<div class="acc-body">
<p>DAS provides a secure, trusted mechanism which allows Offices both to transmit and to access unpublished documents with confidence that the transmission has been permitted by the applicant or other authorized person.</p>
<p>It is essential that users properly understand what is required to give permission for this transfer. Because the system is designed to work between pairs of Offices, which may have no other working relationship, there are steps involved, which are different from, or additional to those in other priority document exchange systems in operation between certain Offices.</p>
</div>
</details>
</div>
<!-- Tab 2 -->
<div id="p2" class="wipodas-panel wipodas-acc">
<details open>
<summary>Current Participation</summary>
<div class="acc-body">
<p>An up-to-date list of participating Offices is maintained on the WIPO DAS website at: <a href="https://www.wipo.int/das/en/news">https://www.wipo.int/das/en/news</a></p>
<p>As of November 1, 2025, there are 50 IP Offices participating in WIPO DAS. Other Offices are at various stages of preparation to join the system and are expected to join in the future.</p>
</div>
</details>
<details open>
<summary>What is WIPO DAS?<<summary>Office-Specific Information</summary>
<div class="acc-body">
<p>The WIPO Digital Access Service (“DAS”), available at <a href="https://www.wipo.int/das/en/">https://www.wipo.int/das/en/</a>, allows you to meet requirements for providing priority and similar documents in respect of participating Offices, without the need to obtain and send multiple certified paper copies of an application.</p> <p>The participating Office’s websites also provide useful DAS information relevant to that particular Office. Please see “New Office Participation” on the WIPO website for announcements and details.</p>
</div>
</details>
<p>Instead, you ask the Office where you are claiming priority (“Office of Second Filing” or OSF) to download a copy of the document directly from a digital library, normally held by or on behalf of the Office where the earlier application was filed from which priority is claimed (“Office of First Filing” or OFF).</p>
</div>
</details>
</div>
<!-- Tab 3 -->
<div id="p3" class="wipodas-panel wipodas-acc">
<details open>
<summary>Scope of Documents</summary>
<div class="acc-body">
<p>The service is intended for use with documents related to patents, utility models, industrial designs and trademarks.</p>
<details open>
<p>At present, the service is operational for exchange <summary>Securityof and Permissions</summary>
patent, utility model and design priority documents.</p>
<div class="acc-body">
</div>
<p>DAS</details>
provides a secure, trusted mechanism which<details allowsopen>
Offices both to transmit and to access unpublished<summary>OFF documents with confidence that the transmission has been permitted by the applicant or other authorized person.</p>
Policy Differences</summary>
<div class="acc-body">
<p>The scope of documents which <p>Itcan isbe essentialmade thatavailable usersalso properlydepends understandon whatthe ispolicy requiredof tothe giveOffice permissionof forFirst this transfer. Because the system is designed to work between pairs of Offices, which may have no other working relationship, there are steps involved, which are different from, or additional to those in other priority document exchange systems in operation between certain Offices.</p>
</div>Filing.</p>
<p>Some Offices will allow any patent application filed at their Office to be entered into the system; other Offices offer the service only for a limited range of applications, such as those which have been filed in electronic form.</p>
</details>
</div>
<p>The relevant scope for <!-- Tab 2: Participating Offices -->
<div id="p2" class="wipodas-panel wipodas-acc">each participating Office is outlined on WIPO’s website: <a href="https://www.wipo.int/das/en/participating_offices.html">https://www.wipo.int/das/en/participating_offices.html</a></p>
<details open>
<p>The service will be extended <summary>Current Participation</summary>
<div class="acc-body">
<p>An up-to-date list of participating Offices is maintained on the WIPO DAS website at: <a href="https://www.wipo.int/das/en/news">https://www.wipo.int/das/en/news</a></p>
<p>As of November 1, 2025, there are 50 IP Offices participating in WIPO DAS. Other Offices are at various stages of preparation to join the system and are expected to join in the future.</p>to trademarks once participating Offices have made the necessary changes.</p>
</div>
</details>
</div>
<!-- Tab 4 -->
<div id="p4" class="wipodas-panel wipodas-acc">
<details open>
<summary>System Dependencies & Queuing</summary>
<div class="acc-body">
</div>
<p>The DAS system depends </details>
on the IT systems of many <detailsdifferent open>
Offices, over which the International Bureau has <summary>Office-Specific Information</summary>no control.</p>
<div class="acc-body">
<p>The participating Office’s websites also provide useful DAS information relevant to that particular Office. Please see “New Office Participation” on the WIPO website for announcements and details.</p>
</div>
</details>
</div>
<!-- Tab 3: Documents -->
<div id="p3" class="wipodas-panel wipodas-acc"> <p>If a library in one Office is temporarily unavailable, requests are queued until systems are restored.</p>
<p>This may cause delays, so it is important to register the application and take the required steps as early as possible.</p>
</div>
</details>
<details open>
<summary>Scope of Documents<<summary>Impact on Retrievals & Calendar</summary>
<div class="acc-body">
<p>In extreme cases, <p>Thethe serviceOffice isof intendedSecond forFiling usemay withbe documentstemporarily relatedunable to patents,retrieve utilityyour modelsapplication, industrial designs and trademarks.</p>
<p>At present, the service is operational for exchange of patent, utility model and design priority documents.<but you should still be given an opportunity to provide a paper certified copy if needed.</p>
<p><a href="https://confluence.wipo.int/confluence/spaces/dascg/pages/1590497022/4.-+Calendar+of+network+disruptions">Network disruptions</a></p>
</div>
</details>
<details open></div>
<!-- Tab <summary>OFF Policy Differences</summary>5 -->
<div <div id="p5" class="acc-bodywipodas-panel wipodas-acc">
<details open>
<p>The scope of documents which can be made available also depends on the policy of the Office of First Filing.</p> <summary>How to Recover Access Codes</summary>
<div <p>Some Offices will allow any patent application filed at their Office to be entered into the system; other Offices offer the service only for a limited range of applications, such as those which have been filed in electronic formclass="acc-body">
<p>If you lose your DAS access code for an earlier application filed at CN, EP, FI, JP, KR, NZ or US, please contact the Office where you filed that application.</p>
<p>The<p>If relevantthe scope for each participating Office is outlined on WIPO’s website: <a href="https://www.wipo.int/das/en/participating_offices.html">https://www.wipo.int/das/en/participating_offices.html</a></p>
<p>The service will be extended to trademarks once participating Offices have made the necessary changesapplication was filed at another participating Office, contact the PCT eServices Help Desk for the access code to be resent to the e-mail address you registered for DAS purposes.</p>
</div>
</details>
</div>
<!-- Tab 4:6 Unavailability -->
<div id="p4p6" class="wipodas-panel wipodas-acc">
<details open>
<details open>
<summary>Step 1. Ensure that the document <summary>Systemis Dependenciesavailable &to Queuing<DAS</summary>
<div class="acc-body">
<p>The<p>Request DASthe systemOffice dependsof onFirst theFiling ITto systemsdeposit ofa many different Offices, over which copy of the Internationalearlier Bureauapplication hasto no controlDAS.</p>
<p>If a library in one Office is temporarily unavailable, requests are queued until systems are restored<p>The exact means of doing this will depend on the requirements of the particular Office with which the earlier application is/was filed.</p>
<p>This<p>See maythe causeDAS delays,home sopage itat is important to register the application and take the required steps as early as possible.</p>
</div>
</details>
<a href="https://www.wipo.int/das/en/">https://www.wipo.int/das/en/</a> and the <a href="https://www.wipo.int/pct/en/appguide/index.jsp">PCT Applicant’s Guide, Annex B</a> for the procedure to be followed at each DAS depositing Office, or contact that Office directly.</p>
<details open>
<p>Links to detailed instructions <summary>Impactprovided onby Retrievalseach & Calendar</summary>
<div class="acc-body">
<p>In extreme cases, the Office of Second Filing may be temporarily unable to retrieve your application, but you should still be given an opportunity to provide a paper certified copy if neededOffice can be found on the DAS website at: <a href="https://www.wipo.int/das/en/participating_offices.html">Participating Offices</a>.</p>
<p>To make an earlier PCT application filed at WIPO’s receiving Office RO/IB available to DAS, refer to a separate User Guide <a href="https://www.wipo.int/das/en/documentation.html">“PCT and DAS”</a>.</p>
<p>Following your <p><a href="https://confluence.wipo.int/confluence/spaces/dascg/pages/1590497022/4.-+Calendar+of+network+disruptions">Network disruptions</a></p>
</div>
</details>
</div>
<!-- Tab 5: Lost Codes -->
<div id="p5" class="wipodas-panel wipodas-acc">
<details open>
<summary>How to Recover Access Codes</summary>request to the Office, you will either receive an access code, or else a code which was given to you as part of the application process (for example, in the case of a USPTO application, the 4-digit confirmation number indicated on the original filing receipt) will become available for use as a DAS access code.</p>
</div>
<div class="acc-body">
</details>
<p>If<details youopen>
lose your DAS access code for an earlier<summary>Step application2. filedAsk atthe CN,Office EP,of FI,Second JP,Filing KR,to NZretrieve or US, please contact the Office where you filed that application.</p>the document</summary>
<div class="acc-body">
<p>If<p>The theOffice applicationof wasSecond filedFiling atwill anotherretrieve participatingthe Office,priority contactdocument thefrom PCTDAS eServicesonly Helpif Deskyou forspecifically therequest accessthem code to beand resent toindicate the e-mailaccess addresscode youon registeredthe for DASapplication purposesform.</p>
</div>
</details>
</div>
<!-- Tab 67: PCT WIPOand DAS Usage overview -->
<div id="p6" class="wipodas-panel wipodas-acc">
<details open>
<summary>Step 1. Ensure that the document is available to DAS</summary>
<divp7" class="acc-bodywipodas-panel wipodas-acc">
<details open>
<p>Request the Office of<summary>Using FirstDAS Filing to deposit a copy of the earlier application to DAS.</p>for PCT</summary>
<div class="acc-body">
<p>You can use <p>TheDAS exactto meansmeet ofPCT doingpriority thisdocument willrequirements, dependby onrequesting the requirementsInternational ofBureau theto particularretrieve Officean withearlier whichnational theor earlierregional application is/was filed.</p>
<p>See the DAS home page at <a href="https://www.wipo.int/das/en/">https://www.wipo.int/das/en/</a> and the <a href="https://www.wipo.int/pct/en/appguide/index.jsp">PCT Applicant’s Guide, Annex B</a> for the procedure to be followed at each DAS depositing Office, or contact that Office directly.</p>
<p>Links to detailed instructions provided by each Office can be found on the DAS website at: <a href="https://www.wipo.int/das/en/participating_offices.html">Participating Offices</a>.</p>
<p>To make an earlier PCT application filed at WIPO’s receiving Office RO/IB available to DAS, refer to a separate User Guide that has been filed with a participating Office, or an earlier international application filed with RO/AU, RO/BR, RO/CL, RO/CN, RO/DK, RO/EA, RO/ES, RO/FI, RO/IB, RO/IN, RO/MA, RO/NL and RO/SE.</p>
<p>In terms of giving permission, the International Bureau is treated like any other Office of Second Filing. Even though the International Bureau runs the core systems of DAS, it cannot access your applications for use as PCT priority documents, unless you have provided it with the access code. A separate detailed User Guide on how to use DAS for PCT purposes, named “PCT and DAS”, is available on the WIPO DAS web site at <a href="https://www.wipo.int/das/en/documentation.html">“PCT and DAS”</a>.</p>>https://www.wipo.int/das/en/documentation.html</a>.</p>
</div>
</details>
<details open>
<summary>Steps to furnish priority <p>Following your request to the Office, you will either receive an access code, or else a code which was given to you as part of the application process (for example, in the case of a USPTO application, the 4-digit confirmation number indicated on the original filing receipt) will become available for use as a DAS access code.</p>
</div>
</details>
documents (PCT)</summary>
<div class="acc-body">
<p>After you have taken the necessary steps with the Office of First Filing to make your priority application available via DAS, you can request the International Bureau to obtain it by marking the corresponding check-box in the Priority details of the request form PCT/RO/101 and indicating the access code in the relevant space.</p>
<details open>
<p>If you filed a PCT <summary>Stepapplication 2.without AskDAS theindications, Officeit ofis Secondalso Filingpossible to retrieve the document</summary>
<div class="acc-body">
<p>The Office of Second Filing will retrieve the priority document from DAS only if you specifically request them to and indicate the access code on the application formprovide them after filing. This can be done in the ePCT service (<a href="https://pct.wipo.int">https://pct.wipo.int</a>) as an Online Action or via the Upload Documents feature. For detailed instructions on how to use ePCT, please refer to the HELP topics accessible via the ePCT home page.</p>
</div>
</details>
</div>
</div>
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