Call for Exclusions (Update): Timing control for script-based animations; Page Visibility

Dear Advisory Committee representative,

This is an update regarding the W3C Patent Policy exclusion opportunity for the following Recommendation Track documents:

- Timing control for script-based animations
 exclusion opportunity ending on 30 October 2011 23:59 UTC

- Page Visibility
 exclusion opportunity ending on 30 October 2011 23:59 UTC

These specifications were produced by the Web Performance Working Group.

If you do not wish to exclude patent claims during this exclusion opportunity, no further action is required.

Participants have until 30 October 2011 23:59 UTC to exclude claims reading on these Recommendation track documents; excluded claims are not subject to the licensing requirements of the W3C Patent Policy for this document. For more information about exclusions, please see

To make exclusions, please use the following form:

Per section 4.1 of the Patent Policy [1], the drafts identified by the following URIs establish the reference material for the purposes of these exclusion opportunities:

  Timing control for script-based animations

  Page Visibility

All Participants currently in the Working Group have made Royalty-Free licensing commitments for these documents. Participants wishing to resign from this group should review licensing obligations and exclusion opportunities described in section 4.2 of the Patent Policy [2].

Summary information for this group related to the W3C Patent Policy is available at:

If you have any questions or need further information, please contact, for the Web Performance Working Group:
* Philippe Le Hégaret at

For more information on the W3C Patent Policy and patent claim exclusions, see:

Thank you,

For Tim Berners-Lee, W3C Director;
Ian Jacobs, Head of W3C Communications

Ian Jacobs (
Tel:                                      +1 718 260 9447

Received on Thursday, 1 September 2011 02:44:52 UTC