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<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>
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<!-- Tab labels -->
<div class="wipodas-tablabels">
<label for="tab1">What is WIPO DAS?</label>
<label for="tab2">Participating Offices</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DAS provides a secure, trusted mechanism which allows Offices both to transmit and to access unpublished documents with confidence that the transmission has been permitted by the applicant or other authorized person.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>Office-Specific Information</summary>
<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 -->
<div id="p3" class="wipodas-panel wipodas-acc">
<details open>
<summary>Security<summary>Scope andof Permissions<Documents</summary>
<div class="acc-body">
<p>The service is intended for use with <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 persondocuments related to patents, utility models, industrial designs and trademarks.</p>
<p>At present, the service is operational for exchange of patent, utility model and design priority documents.</p>
</div>
<p>It is essential that users properly understand what is required</details>
to give permission for this transfer.<details Becauseopen>
the system is designed to work between pairs<summary>OFF 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>Policy Differences</summary>
<div class="acc-body">
<p>The scope of documents which can be made available also depends on the policy of the Office of First Filing.</p>
</details>
</div>
<p>Some Offices will allow <!-- Tab 2: Participating Offices -->
<div id="p2" class="wipodas-panel wipodas-acc">
<details open>
<summary>Current Participation</summary>
<div class="acc-body">
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>
<p>The <p>An up-to-date list ofrelevant scope for each participating OfficesOffice is maintained on the WIPO DASoutlined on WIPO’s website at: <a href="https://www.wipo.int/das/en/newsparticipating_offices.html">https://www.wipo.int/das/en/news<participating_offices.html</a></p>
<p>As<p>The ofservice Novemberwill 1,be 2025,extended thereto aretrademarks 50once IPparticipating Offices participatinghave made inthe WIPOnecessary DASchanges. Other Offices are at various stages of preparation to join the system and are expected to join in the future.</p></p>
</div>
</details>
</div>
<!-- Tab 4 </div>
-->
<div id="p4" </details>
class="wipodas-panel wipodas-acc">
<details open>
<summary>Office-Specific Information<<summary>System Dependencies & Queuing</summary>
<div class="acc-body">
<p>The participating Office’s websites also provide useful DAS informationsystem relevantdepends toon thatthe particularIT Office.systems Pleaseof seemany “Newdifferent OfficeOffices, Participation”over onwhich the WIPOInternational websiteBureau forhas announcementsno and detailscontrol.</p>
</div>
<p>If a library in </details>
one Office is </div>
<!-- Tab 3: Documents -->
<div id="p3" class="wipodas-panel wipodas-acc">
temporarily unavailable, requests are queued until systems are restored.</p>
<p>This <detailsmay open>
cause delays, so it is important to register <summary>Scopethe of Documents</summary>
<div class="acc-body">
application and take the required steps as early as possible.</p>
</div>
<p>The service is intended</details>
for use with documents related to<details patents,open>
utility models, industrial designs and trademarks.</p>
<summary>Impact on Retrievals & Calendar</summary>
<p>At present, the service is operational for exchange of patent, utility model and design priority documents.</p>
</div>
</details>
<details open>
<summary>OFF Policy Differences</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 needed.</p>
<div <p><a class="acc-body">
href="https://confluence.wipo.int/confluence/spaces/dascg/pages/1590497022/4.-+Calendar+of+network+disruptions">Network disruptions</a></p>
</div>
<p>The scope of documents</details>
which can be made</div>
available also depends on the policy of the Office of First Filing.</p>
<!-- Tab 5 -->
<div id="p5" class="wipodas-panel wipodas-acc">
<details open>
<p>Some Offices will allow any patent application filed<summary>How atto theirRecover 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>
<p>The relevant 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 changesAccess Codes</summary>
<div class="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>If the application 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: Unavailability6 -->
<div id="p4p6" class="wipodas-panel wipodas-acc">
<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 manycopy different Offices, over which of the Internationalearlier Bureauapplication hasto no controlDAS.</p>
<p>The exact means of doing this will depend on <p>Ifthe arequirements libraryof inthe oneparticular Office iswith temporarilywhich unavailable,the requestsearlier areapplication queued until systems are restoredis/was filed.</p>
<p>This<p>See the mayDAS causehome delays,page soat it 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 provided <summary>Impactby oneach RetrievalsOffice & Calendar</summary>
<div class="acc-body">
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 <p>Inmake extremean cases,earlier thePCT Officeapplication offiled Secondat FilingWIPO’s mayreceiving beOffice temporarilyRO/IB unableavailable to retrieve your applicationDAS, but you should still be given an opportunity refer to provide a paperseparate certified copy if needed.</p>
<p><aUser Guide <a href="https://confluencewww.wipo.int/confluencedas/spaces/dascg/pages/1590497022/4.-+Calendar+of+network+disruptions">Network disruptions</a></p>
en/documentation.html">“PCT and DAS”</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><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 class="acc-body">
</div>
</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 access codethem to beand resentindicate to the e-mail address you registered for DAS purposesaccess code on the application form.</p>
</div>
</details>
</div>
<<!-- Tab 67: WIPOPCT and DAS Usage overview -->
<div id="p6""p7" class="wipodas-panel wipodas-acc">
<details open>
<summary>Using DAS for PCT</summary>
<div class="wipodas-panel wipodas-accacc-body">
<details open>
<p>You can use DAS <summary>Step 1. Ensure thatto meet PCT priority document requirements, by requesting the documentInternational isBureau availableto to DAS</summary>
<div class="acc-body">
<p>Request the Office of First Filing to deposit a copy of the earlier application to DASretrieve an earlier national or regional application 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>The exact<p>In meansterms of doinggiving thispermission, willthe dependInternational onBureau theis requirementstreated oflike theany particularother Office withof whichSecond theFiling. earlierEven applicationthough is/was filed.
<p>Seethe International Bureau runs the DAScore homesystems pageof at https://www.wipo.int/das/en/ 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: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/participating_officesdocumentation.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 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>
<details open>
<summary>Step 2. Ask the Office of Second Filing 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 form>https://www.wipo.int/das/en/documentation.html</a>.</p>
</div>
</details>
<details open>
<summary>Steps to furnish priority 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>
<p>If you filed a PCT application without DAS indications, it is also possible to provide 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>
</div>
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