History for IPR disclosure
Tobias Gondrom's Statement about Possible IPR claimed in draft-ietf-ltans-ers-02.txt and draft-ietf-ltans-reqs-04.txt belonging to Surety

From: http://www.ietf.org/ietf-ftp/IPR/surty-ipr-3rd-party.txt

Hello,

According to RFC3979 section 6.1.3 I hereby want to inform the IETF of IPR of the company Surety.

The information has been submitted to me by Denis Pinkas who is AFAIK not in relationship with the
IPR holder.

Although I personally explicitely DO NOT think that the works of the WG LTANS are in any infringement
with the two patents listed below, I want to stay fully conform to the procedures of the IETF and
thereby inform you as recommended ("encouraged") by RFC3979.

Denis informed me about the following two patents:

Method of providing digital signatures.

U.S. patent 4,309,569, issued January 5, 1982.

And

Digital document timestamping with catenate certificate U.S. Patent No. 5,136,646, issued August 4, 1992.

The drafts to which these patents might theoretically relate are:

draft-ietf-ltans-ers-02.txt

draft-ietf-ltans-reqs-04.txt

Best regards, Tobias
__________________________________________
Tobias Gondrom
Senior Security Architect
Head of Open Text Security Team

Open Text Corporation
Technopark 2
Werner-von-Siemens-Ring 20
D-85630 Grasbrunn
Phone:  +49 (0) 89 4629-1816
Telefax:        +49 (0) 89 4629-33-1816
eMail:  mailto:tobias.gondrom@opentext.com
Internet:      http://www.opentext.com/

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