Today Microsoft filed the following disclosure statement with the IETF
Secretariat regarding IPR claimed in relation to Sender ID. This statement
does not mean that patents have been granted in any of the jurisdictions
mentioned below, only that the patent applications themselves are due to be
published shortly.
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Subject: Microsoft's Updated Statement about IPR Claimed in
<draft-ietf-marid-core-03.txt> and <draft-ietf-marid-pra-00.txt> in Combination
Microsoft is aware of the existence of US, EP; JP; CN; KR; and IN patent
applications that are likely to include claims that would necessarily be
infringed when implementing the combination of the specifications entitled
"Purported Responsible Address in E-mail Messages", file name
draft-ietf-marid-pra-00.txt, and located at the following link on August 23,
2004, url: http://www.ietf.org/internet-drafts/draft-ietf-marid-pra-00.txt and
the specification entitled "Sender ID: Authenticating E-mail", file name:
draft-ietf-marid-core-03.txt, url:
http://www.ietf.org/internet-drafts/draft-ietf-marid-core-03.txt. The patent
applications are expected to be published by the respective patent offices on
or around September 13, 2004. The relevant patent application information is:
US - Title: "Reducing Unwanted And Unsolicited Electronic Messages By
Preventing Connection Hijacking And Domain Spoofing", Serial no. 10/684020
EP - Title: "Coordinated Reduction of Unwanted and Unsolicited Electronic Mail
Messages", Serial no. 04005644.2
JP - Title: "Coordinated Reduction of Unwanted and Unsolicited Electronic Mail
Messages", Serial no. 2004-71769
CN - Title: "Coordinated Reduction of Unwanted and Unsolicited Electronic Mail
Messages", Serial no. 200410028682.3
KR - Title: "Coordinated Reduction of Unwanted and Unsolicited Electronic Mail
Messages", Serial no. 10-2004-16409
IN - Title: "Coordinated Reduction of Unwanted and Unsolicited Electronic Mail
Messages", Serial no. 298/DEL/2004
A patent license with reasonable and non-discriminatory terms and conditions,
with no fees or royalties is available at
http://www.microsoft.com/mscorp/ip/standards/ or another public site that
Microsoft may subsequently use to post the license.