IPR Details
Ericsson's Patent claim pertaining to draft-ludwig-tsvwg-tcp-rxt-flag

The text of the original IPR disclosure is available in the disclosure history.

Submitted: December 3, 2001 under the rules in RFC 2026

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

I. Patent Holder/Applicant ("Patent Holder")

Holder legal name Ericsson

II. Patent Holder's Contact for Licence Application

Holder contact name Malin Gullstrand
Holder contact email Malin.Gullstrand@era.ericsson.se
Holder contact info

III. IETF Document or Other Contribution to Which this IPR Disclosure Relates

Internet-Draft: draft-ludwig-tsvwg-tcp-rxt-flag ("TCP Retransmit (RXT) Flag")
Sections: Section 2,3,4,5

IV. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by RFC 2026

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

European patent application no. EP 01 127 446.1

Notes: Said submission proposes the RXT method as defined by the text provided in Section 2,
Section 3, Section 4, and Section 5 of said submission. Telefonaktiebolaget LM
Ericsson owns the European patent application no. EP 01 127 446.1 that claims the thus defined RXT method as such, and intends to file further patent applications in other countries that claim the RXT method as such.

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending Yes

V. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

Licensing See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

If said RXT method is included in an IETF standard, Ericsson is prepared to grant a
paid up, nonexclusive, royalty free license on any patent that might be granted for said
patent application no. EP 01 127 446.1 or one of the further patent applications claiming the RXT method as such, to anyone without any restrictions.

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VI. Contact Information of Submitter of this Form

Submitter name
Submitter email

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