Title: Glassey's Statement about possible IPR claimed in RFC 3161 Received: July 2004 From: Todd Glassey Be advised that I am formally concerned that the use of the services defined in RFC3161 may violate any number of pre-existing patents and because of this, extra diligence is warranted. This need for extra diligence is predicated on the myriad of pre-existing patents on digital receipts and watermarks and/or other evidentiary controls both here in the US and elsewhere. Because of the sheer number of different patents, including ours (McNeil's' and mine), it is my recommendation that in all instances, RFC3161's use should be very carefully scrutinized prior to any services being released whether public or private. Likewise, be advised that the public testing of RFC3161 itself may also possibly violate claims on any number of the patents or multiple patents, and as such prior to those services being released or made available on the web, their use models need to be carefully checked and vetted against the IP rights of those individual patent holders, including myself and McNeil. Todd Glassey Patent Owner