definiens: means all proprietary technical information ( including the TechnicalInformation and the Dossier ), marketing, business and financial information, scientific data, informationmarked confidential and all other information which a reasonable person would treat confidentially that relatesto the Product or the business of a Party . Confidential Information shall not include any information which thereceiving Party can show : 15.2.1was known to or in the possession of the receiving Party prior to the date of its actual receipt fromthe disclosing party ; 15.2.2is readily available to the public other than through any act or omission of the receiving Party incontravention of this Agreement or any other agreement between the Parties ; 15.2.3was disclosed by a third party not under an obligation of confidentiality to the disclosing Party ; or 15.2.4is subsequently independently developed by the receiving Party without use of the ConfidentialInformation as demonstrated by competent written records