Call for Prior Art Related to US Patent 5,764,992

This is a public call for prior art. On 5 March 2009, pursuant to its rights under W3C's Patent Policy, Apple, Inc. disclosed US patent 5,764,992 and claimed that it applies to the Widgets 1.0: Updates specification. Apple excluded all claims from the W3C Royalty-Free License commitment of the W3C Patent Policy given by Participants of the Web Applications Working Group. In accordance with the exception procedures of the Patent Policy, W3C launched a Patent Advisory Group (PAG) to determine possible solutions. The PAG has advised W3C to issue this call for prior art. The PAG seeks information about software update systems available before June 1995 that offer a viable solution that may apply to the use of updates in Widgets. People who wish to provide feedback should refer to the call for prior art for more information.