definiens: as to a Party, shall mean all Know .. how and other information, including, proprietary information and materials ( whether or not patentable ) regarding such Party 's technology, products, business information or objectives, that is designated as in writing by such Party at the time of initial disclosure to the other Party, whether by letter or the use of an appropriate stamp or legend . Notwithstanding the foregoing to the contrary, materials, know - how or other information that is disclosed by a Party orally, electronically, visually or by inspection of intangible objects, or is disclosed in writing without an appropriate letter, stamp or legend, shall constitute Confidential Information of such Party ( a ) for thirty ( 30 ) days after its disclosure and thereafter shall remain Confidential Information only if within such thirty ( 30 ) day period after such disclosure the disclosing Party delivers to the other Party a written document or documents describing the materials, know - how or other information and referencing the place and date of such oral, visual, electronic or written disclosure and the names of the persons to whom such disclosure was made, or ( b ) such information is of the type that is customarily considered to be confidential information in the industry in which such Party operates