The following was received from Rob Lanphier : Here's the official statement from RealNetworks with regards to intellectual property claims on RTSP (Real Time Streaming Protocol, currently draft-ietf-mmusic-rtsp-06.txt), which you may put on the IETF IPR page as you deem appropriate: "RealNetworks has applied for one or more patents on technology related to media streaming. If any patents issued to RealNetworks are required to implement the Real Time Streaming Protocol (RTSP), RealNetworks intends to disclose those patents and license them under openly specified and non-discriminatory terms, and furthermore will not enforce those patents necessary to comply with the RTSP specification when used solely to implement RTSP. This will apply irrespective of whether or not the licensee has any business relationship with RealNetworks. Given where RealNetworks is in the patent process, details cannot be disclosed at this time, but RealNetworks intends to disclose such information as soon as it is appropriate."