For the purpose of this Agreement, the Material shall not include any information which at the time of disclosure or acquisition (a) was already in the possession of the Receiving Party without restriction from a source other than the Disclosing Party and has not been directly or indirectly acquired from any person bound by any confidential obligations to the Disclosing Party in violation of such obligation; (b) becomes generally available to the public other than as a result of unauthorized disclosure by the Receiving Party; (c) is rightfully disclosed to the Receiving Party by a third party who has no obligation of confidentiality to the Disclosing Party; or (d) is independently developed by the Receiving Party without the use of the Material.