As part of the proposal to start a new OASIS TC, May 2002

ContentGuard will submit the eXtensible rights Markup Language™ (XrML™) Version 2.0 at the initial meeting of the TC. ContentGuard has copyrights to the XrML 2.0 specification and schema (including previous releases) along with a trademark on the name "XrML". ContentGuard also owns US Patents 5,638,443, 5,634,012, 5,715,403, and 5,629,980 which have claims that may necessarily be infringed by the use of the contribution. ContentGuard will grant OASIS permission to use the trademark "XrML" for the use of the TC and associated promotion and marketing. ContentGuard's contribution will be submitted with the following intellectual property rights statement: "ContentGuard agrees to offer a license, on reasonable and nondiscriminatory terms, to use any patent claim of US Patents 5,638,443, 5,634,012, 5,715,403, and 5,629,980 and which is necessarily infringed by the use of the contribution.

ContentGuard OASIS RL TC Intellectual Property Disclosure May 21, 2002.

At this time ContentGuard believes its US Patents 5,638,443, 5,634,012, 5,715,403, and 5,629,980 have claims that may necessarily be infringed by the use of a rights expression language, such as the rights expression language being promulgated by the RL TC, to implement digital rights management technologies.

ContentGuard agrees to offer a license, on reasonable and nondiscriminatory terms, to use any patent claim of US Patents 5,638,443, 5,634,012, 5,715,403, and 5,629,980 which are necessarily infringed by the use of the rights expression language being promulgated by the RL TC.