Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Multicast distribution of presence information for an instant messaging system

Multicast distribution of presence information for an instant messaging system

US Patent 6993327 · Granted Jan 31, 2006

Estimated economic value: $19,043,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Methods and systems for controlled wireless distribution of data for use at a lo2020
Methods for tranporting a plurality of media streams over a shared MBMS bearer i2016
Method for bearer establishment in a radio access network2013
System and method for controlling and managing sessions between endpoints in a c2013
Method and apparatus for detecting an alternate wireless communication network2012
Method and apparatus for selectively distributing media inputs associated with a2012
Methods for informing subscribers of adjacent sites2010
Method of access to a channelized network from a packet data network2009
System and method for controlling and managing sessions between endpoints in a c2008
Method and apparatus for indicating an expected level of quality in a private pu2008
Use of IP-multicast technology for 2-party calls in mobile communication network2006
Methods for managing a pool of multicast addresses and allocating addresses in a2006