Cascading Style Sheets (CSS) Working Group Patent Policy Status

Participation

W3C Member Organizations

Academia Sinica (3 representatives)
Adobe Systems Inc. (6 representatives)
Apple, Inc. (6 representatives)
Comcast Cable Communications, LLC (1 representative)
Cox Communications, Inc. (2 representatives)
DAISY Consortium (1 representative)
Disruptive Innovations (1 representative)
Google, Inc. (4 representatives)
Hewlett Packard Company (1 representative)
Microsoft Corp. (5 representatives)
Motorola Mobility, Inc. (5 representatives)
Mozilla Foundation (6 representatives)
Nippon Telegraph & Telephone Corp. (NTT) (5 representatives)
Nokia Corporation (1 representative)
Opera Software (7 representatives)
Qihoo 360 Technology Co Ltd (2 representatives)
Universidad de Oviedo (1 representative)

Invited Experts

Molly Holzschlag
Koji Ishii
Brad Kemper
Anton Prowse

Team members

Bert Bos
Richard Ishida
Chris Lilley

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 14 December 2011; see the Patent Policy FAQ for information about continued participation before re-joining the group.

Note: Please see additional disclosure and/or licensing information associated with this group (e.g., information about a PAG, or disclosures that pre-date the W3C Patent Policy).

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 Cascading Style Sheets (CSS) 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
CSS3 Speech Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Namespaces Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Mobile Profile 2.0	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
Media Queries	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Border	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: The box model	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Fonts	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: line	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Lists and Counters Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS TV Profile 1.0	CPP	Disclose	No exclusions since governed by the CPP	N/A	N/A
CSS3 Ruby Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Generated and Replaced Content Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Presentation Levels	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Syntax	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Print Profile	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Paged Media Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Basic User Interface Module	CPP	Disclose	No exclusions since governed by the CPP	N/A	N/A
CSS3 Hyperlink Presentation Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
The CSS 'Reader' Media Type	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Backgrounds and Borders Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Cascading and inheritance	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Advanced Layout Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Multi-column layout	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Selectors	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Text Effects Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 Values and Units	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS3 module: Generated Content for Paged Media	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Behavioral Extensions to CSS	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Grid Positioning Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Cascading Style Sheets (CSS) Snapshot 2007	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSSOM View Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Marquee Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Basic User Interface Module Level 3 (CSS3 UI)	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Styling Attributes Level 1	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS 2D Transforms Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
CSS 3D Transforms Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
CSS Animations Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
CSS Transitions Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	1 patents have been disclosed
Flexible Box Layout Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Image Values Module Level 3	W3C	Disclose	Exclude until 12 March 2012	Add licensing information	N/A
Cascading Style Sheets (CSS) Snapshot 2010	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Writing Modes Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
Grid Layout	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Regions Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Conditional Rules Module Level 3	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSSOM	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Device Adaptation	W3C	Disclose	Exclude until 12 February 2012	Add licensing information	N/A
Selectors Level 4	W3C	Disclose	Exclude until 26 February 2012	Add licensing information	N/A
CSS Regions Module	W3C	Disclose	No open exclusion opportunity	Add licensing information	N/A
CSS Exclusions and Shapes Module Level 3	W3C	Disclose	Exclude until 11 May 2012	Add licensing information	N/A
CSS Positioned Layout Module Level 3	W3C	Disclose	Exclude until 06 July 2012	Add licensing information	N/A

Recommendations
Specification	Policy	Disclosures
CSS3 Color Module	W3C	None
Cascading Style Sheets, level 2 revision 1	W3C	None

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 Cascading Style Sheets (CSS) 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:

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
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.