Web Platform Working Group Patent Policy Status

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Participation

W3C Member Organizations

• Airbnb Inc (1 representative)
• Alibaba Group (12 representatives)
• Apple, Inc. (17 representatives)
• Baidu, Inc. (4 representatives)
• BarrierBreak Technologies (1 representative)
• China Mobile Communications Corporation (4 representatives)
• Deque Systems, Inc. (4 representatives)
• Ephox Corporation (1 representative)
• Google, Inc. (29 representatives)
• HM Government (2 representatives)
• Igalia (1 representative)
• Intel Corporation (8 representatives)
• JS Foundation (4 representatives)
• Knowbility, Inc (1 representative)
• Microsoft Corp. (17 representatives)
• Mozilla Foundation (9 representatives)
• Newphoria Corporation (1 representative)
• Nomensa (2 representatives)
• Orange (2 representatives)
• Samsung Electronics Co., Ltd. (2 representatives)
• Sony Corporation (2 representatives)
• Spec-Ops (1 representative)
• SSB BART Group (no representative)
• Tencent (5 representatives)
• The Paciello Group, LLC (7 representatives)
• Yandex (2 representatives)

Invited Experts

• Patricia Aas
• Ian Devlin
• Jason Kiss
• Tobie Langel
• Bruce Lawson
• David MacDonald
• Jan Miksovsky
• Sangwhan Moon
• Florian Rivoal
• Geoffrey Sneddon
• Johannes Wilm
• Tomek Wytrębowicz

Team members

• Yves Lafon
• Xiaoqian Wu
• Fuqiao Xue

See also the list of individuals participating in this group.

Join or leave this group (see general instructions for joining this group). Advisory Committee Representatives of participating Members may also nominate or change representatives in the group.

The Call for Participation for this group was announced on 3 August 2017; see the Patent Policy FAQ for information about continued participation before re-joining the group.

Licensing Commitments

Participants in this group have made certain licensing commitments by joining the group. See the details about licensing commitments from current and past Participants and other parties.

W3C Members not participating in this group who wish to make the same licensing commitments for specifications developed by this group may do so through a form for licensing commitments from non-participating Members.

Other parties who wish to make the licensing commitments for this group should consult the instructions for non-Members to make licensing commitments for this group.

Specifications for this group

The following is the list of specifications produced by the Web Platform Working Group that have associated disclosures obligations, and possibly licensing obligations under the W3C Patent Policy.

Drafts

Specification	Policy	Disclose	Exclude	Add licensing information	Disclosure & exclusion
UI Events Also developed by Web Applications Working Group, Web API Working Group, DOM Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Clipboard API and events Also developed by Web Applications Working Group, Web API Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
WebIDL Level 1 Also developed by Web Applications Working Group, Web API Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
File API Also developed by Web Applications Working Group, Web API Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Web Storage (Second Edition) Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
HTML Microdata Also developed by HTML Media Extensions Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
DOM Parsing and Serialization Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Gamepad Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
HTML 5.1 2nd Edition Also developed by HTML Media Extensions Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Input Method Editor API Also developed by Web Applications Working Group.	No longer/Not under W3C PP	Disclose	No exclusions since not under PP	N/A	N/A
Pointer Lock Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Push API Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	9 patents have been disclosed and 9 excluded
Quota Management API Also developed by Web Applications Working Group.	No longer/Not under W3C PP	Disclose	No exclusions since not under PP	N/A	N/A
The Screen Orientation API Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Shadow DOM Also developed by Web Applications Working Group.	No longer/Not under W3C PP	Disclose	No exclusions since not under PP	N/A	1 patents have been disclosed
Custom Elements Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
HTML Imports Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
Web App Manifest Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Service Workers 1 Also developed by Service Workers Working Group, Web Applications Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
UI Events KeyboardEvent code Values Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
UI Events KeyboardEvent key Values Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Selection API Also developed by Web Applications Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
HTML Accessibility API Mappings 1.0 Also developed by Accessible Rich Internet Applications Working Group, HTML Media Extensions Working Group, Protocols and Formats Working Group,	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
ARIA in HTML Also developed by HTML Media Extensions Working Group.	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
FindText API Also developed by Web Annotation Working Group.	No longer/Not under W3C PP	Disclose	No exclusions since not under PP	N/A	N/A
HTML 5.2	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Indexed Database API 2.0	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Input Events Level 2	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Pointer Lock 2.0	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
W3C DOM 4.1	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Intersection Observer	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
HTML 5.3	W3C	Disclose	Exclude until 13 May 2018	Add licensing information	N/A

See the detailed information on how to disclose a patent, how to exclude a patent claim and how to add licensing terms below.

Note: If a specification does not appear in this table, the group may have identified it as being "informative only." To add or modify an item in this table, please refer to the IPP instructions.

Patent Disclosures and Claim Exclusions

This section summarizes patent disclosures by participants in W3C's Web Platform Working Group as required by section 6 of the 5 February 2004 W3C Patent Policy. Note: This disclosure mechanism applies to all W3C Working Groups after 15 February 2004, per the Patent Policy Transition Procedure.

W3C takes no position regarding either:

1. the validity or scope of any intellectual property right or other rights that might be claimed to pertain to the implementation or use of the technology, or
2. the extent to which any license under such rights might or might not be available from those not participating in this group.

W3C Members are obligated to disclose a patent when they receive a request for disclosure and have personal knowledge of the patent under the following conditions:

• the specification has been developed under the W3C Patent Policy and the Member has not committed to the W3C Royalty-Free Licensing Terms,
• the specification has been developed under the 24 January 2002 CPP as amended by the W3C Patent Policy Transition Procedure

Where disclosure is required by a W3C Member, the AC Representative makes the disclosure.

Anyone else may also make a disclosure.

Known Disclosures

Disclosures for Push API

The entry in the first column links to details about the disclosed patent, including any excluded claims or additional licensing information that has been provided.

Patent for Push API	Licensing	Notes
Issued patent 'US 6188909 ' (US + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'EP 0882375' (Europe + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'EP 1439723' (Europe + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'US 7366529' (US + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'EP 1322072 ' (Europe + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'US 6292668' (US + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'EP 1581016' (Europe + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'JP 3917596' (Japan + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report
Issued patent 'US 7079517' (US + all equivalent foreign counterparts) held by Nokia Corporation disclosed on 2013-02-13	Claims excluded from Royalty-Free commitment:All claims excluded	Push API PAG Report

Disclosures for Shadow DOM

The entry in the first column links to details about the disclosed patent, including any excluded claims or additional licensing information that has been provided.

Patent for Shadow DOM
Issued patent 'FR2962237' (Institut national de la propriété industrielle) held by (unknown holder) disclosed on 2016-02-23

Disclosures for Custom Elements

The entry in the first column links to details about the disclosed patent, including any excluded claims or additional licensing information that has been provided.

Patent for Custom Elements	Licensing	Notes
Issued patent 'FR2962237' (Institut national de la propriété industrielle) held by (unknown holder) disclosed on 2016-02-23	No Royalty-Free Commitment	PAG report

Disclosures for HTML Imports

The entry in the first column links to details about the disclosed patent, including any excluded claims or additional licensing information that has been provided.

Patent for HTML Imports	Licensing	Notes
Issued patent 'FR2962237' (Institut national de la propriété industrielle) held by (unknown holder) disclosed on 2016-02-25	No Royalty-Free Commitment	PAG report

How to Make a Patent Disclosure

W3C Members and Invited Experts (including those not participating in this group) wishing to disclose a patent for any specification produced by the Web Platform Working Group should use the Web Platform Working Group patent disclosure form.

Disclosures from the general public should be sent to the Staff Contacts of this group.

For specifications developed under the W3C Patent Policy, parties that commit to the W3C Royalty-Free Licensing Terms are not required to disclose patents. Any party (not just the Working Group Participants) may commit to the W3C Royalty-Free Licensing Terms and may do so by following the instructions in the next section.

Claim Exclusions

Only Web Platform Working Group participants may exclude patent claims concerning specifications developed under the W3C Patent Policy, per section 4 of the W3C Patent Policy. To make an exclusion, participants should use the Web Platform Working Group patent claim exclusion form, but only after first disclosing the patent.

Exclusion Opportunities

The Patent Policy FAQ provides detailed information about exclusion opportunities, that is, when a Working Group Participant can exclude a patent claim.

Each exclusion opportunity has a duration. See section 4.1 of the W3C Patent Policy and section 2 of the Patent Policy Transition Procedure for information on how the exclusion deadline is calculated.

At each exclusion opportunity, Participants may exclude patent claims with respect to a body of text. The Reference Draft is the reference body of text for the current exclusion opportunity.

Note: At each new exclusion opportunity (e.g., in the case of a second Last Call), exclusions are only with respect to differences since the previous reference body of text. These differences may be less than an entire document, and the summary below does not (yet) address that granularity. Also, in some edge cases (discussed in the FAQ), Participants, depending on when they joined the Working Group, will have different Reference Drafts; the summary below does not reflect this case.

History of Exclusion Opportunities

WebIDL Level 1

1. Call for exclusion sent on 05 April 2016; opportunity ended on 07 May 2016

HTML Microdata

1. Call for exclusion sent on 04 May 2017; opportunity ended on 30 September 2017

HTML 5.1 2nd Edition

1. Call for exclusion sent on 21 June 2016; opportunity ended on 20 August 2016
2. Call for exclusion sent on 20 June 2017; opportunity ended on 19 August 2017

Pointer Lock

1. Call for exclusion sent on 05 July 2016; opportunity ended on 03 September 2016

UI Events KeyboardEvent code Values

1. Call for exclusion sent on 01 June 2017; opportunity ended on 31 July 2017

UI Events KeyboardEvent key Values

1. Call for exclusion sent on 01 June 2017; opportunity ended on 31 July 2017

FindText API

1. Call for exclusion sent on 15 October 2015; opportunity ended on 13 March 2016

HTML 5.2

1. Call for exclusion sent on 18 August 2016; opportunity ended on 15 January 2017
2. Call for exclusion sent on 08 August 2017; opportunity ended on 07 October 2017

Indexed Database API 2.0

1. Call for exclusion sent on 18 August 2016; opportunity ended on 15 January 2017
2. Call for exclusion sent on 08 August 2017; opportunity ended on 09 October 2017

Input Events Level 2

1. Call for exclusion sent on 30 August 2016; opportunity ended on 27 January 2017

Pointer Lock 2.0

1. Call for exclusion sent on 22 November 2016; opportunity ended on 21 April 2017

W3C DOM 4.1

1. Call for exclusion sent on 22 March 2017; opportunity ended on 18 August 2017

Intersection Observer

1. Call for exclusion sent on 14 September 2017; opportunity ended on 11 February 2018
2. Call for exclusion sent on 14 December 2017; opportunity ended on 11 February 2018

Additional Licensing Information

As described in section 5 of the W3C Patent Policy:

All Working Group participants are encouraged to provide a contact from which licensing information can be obtained and other relevant licensing information. Any such information will be made publicly available along with the patent disclosures for the Working Group in question.

Patent holders may:

1. Provide additional licensing information for documents produced by this Working Group
2. Provide the same additional licensing information for all documents with associated licensing obligations produced by this Working Group, or
3. Provide additional licensing information for any W3C document with associated licensing obligations produced by any W3C Working Group under the W3C Patent Policy.

Please recall that, per section 5 of the W3C Patent Policy, a W3C Royalty-Free license:

may not impose any further conditions or restrictions on the use of any technology, intellectual property rights, or other restrictions on behavior of the licensee, but may include reasonable, customary terms relating to operation or maintenance of the license relationship such as the following: choice of law and dispute resolution.

Any additional licensing information that has been provided is listed below. The section below will be empty when no additional licensing information has been provided.

Note: All actions carried out through this system are reported by email to the relevant parties; copies are sent to [email protected] (Member-readable archive).