premise: 4. Each party's obligations under this Agreement shall not apply to information which:  (a) is known by the receiving party or is publicly available at the time of disclosure;  (b) becomes publicly available after disclosure by the disclosing party to the receiving party through no act of either party;  (c) is hereafter rightfully furnished to the receiving party by a third party without restriction as to use or disclosure;  (d) is disclosed with the prior written consent of the disclosing party;  (e) is information that was independently developed by the receiving party; or  (f) is required to be disclosed pursuant to any judicial or administrative proceeding, provided that the receiving party promptly notifies the disclosing party of such action and gives the disclosing party the opportunity to seek any legal remedies to maintain such information in confidence.