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Hifn's Statement about IPR claimed in draft-friend-tls-lzs-compression, RFC1967, RFC1974, RFC2118, RFC2395, and RFC3078

This IPR disclosure was submitted by e-mail.

Sections I, II, and IV of "The Patent Disclosure and Licensing Declaration Template for Legacy" have been completed for this IPR disclosure. Additional information may be available in the original submission.

The text of the original IPR disclosure is available further down, and also here:
http://www.ietf.org/ietf-ftp/IPR/hifn-ipr-draft-friend-tls-lzs-compression.txt.

This IPR disclosure has been updated by IPR disclosure ID #519, "Hifn's Statement on IPR Claimed in LZS and MPPC compression algorithms".

Update this IPR disclosure. 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.

Submitted Date: April 2, 2004

I. Patent Holder/Applicant ("Patent Holder")
Legal Name: Hifn
II. Patent Holder's Contact for License Application
Name: Robert C. Friend
Title:
Department:
Address1: 750 University Ave.
Address2: Los Gatos, CA 95032
Telephone:
Fax:
Email:
III. IETF Document or Other Contribution to Which this IPR Disclosure Relates:
RFC 1974:"PPP Stac LZS Compression Protocol"
RFC 2118:"Microsoft Point-To-Point Compression (MPPC) Protocol"
RFC 3078:"Microsoft Point-To-Point Encryption (MPPE) Protocol"
RFC 1967:"PPP LZS-DCP Compression Protocol (LZS-DCP)"
RFC 2395:"IP Payload Compression Using LZS"
Internet-Draft:"Transport Layer Security (TLS) Protocol Compression Using Lempel-Ziv-Stac (LZS)"
(draft-friend-tls-lzs-compression)

The text of the original IPR declaration:

Title: Hifn's Statement about IPR claimed in draft-friend-tls-lzs-compression, 
       RFC1967, RFC1974, RFC2118, RFC2395, and RFC3078
Received: April 2, 2004, updated April 22, 2004
From: Robert C. Friend

This note is to advise the IETF that the LZS and MPPC compression algorithms
are subject to patent and other intellectual property rights claims,
specifically U.S. patent numbers 4,701,745, 5,003,307, 5,016,009, 5,126,739,
5,146,221, 5,414,425, 5,414,850, 5,463,390, 5,506,580, 5,532,694.
Implementations of LZS and MPPC compression methods are referenced in certain
IETF documents, specifically RFC1967, RFC1974, RFC2118, RFC2395, RFC3078, and
draft-friend-tls-lzs-compression-03.txt.

Software licenses for a reference implementation are available for
use in IPPCP, IPSec, PPP, in addition to TLS applications at no cost.

Software licenses are available on a non-discriminatory basis.
Hardware implementations are also available. For more information,
contact Hifn at the address listed with the author's address.

For more information, contact Hifn at the address listed below or at the RFC
author's address.

Hifn
750 University Ave.
Los Gatos, CA 95032

www.hifn.com