"(1) A party to whom a document has been disclosed may use the document only for the purpose of the proceedings in which it is disclosed, except where – "(a) the document has been read to or by the court, or referred to, at a hearing which has been held in public; "(b) the court gives permission; or "(c) the party who disclosed the document and the person to whom the document belongs agree. "(2) The court may make an order restricting or prohibiting the use of a document which has been disclosed, even where the document has been read to or by the court, or referred to, at a hearing which has been held in public. "(3) An application for such an order may be made – "(a) by a party; or "(b) by any person to whom the document belongs. "(4) For the purpose of this rule, an Electronic Documents Questionnaire which has been completed and served by another party pursuant toPractice Direction 31B is to be treated as if it is a document which has been disclosed." "(a) the document has been read to or by the court, or referred to, at a hearing which has been held in public; "(b) the court gives permission; or "(c) the party who disclosed the document and the person to whom the document belongs agree. "(a) by a party; or "(b) by any person to whom the document belongs. "(4) For the purpose of this rule, an Electronic Documents Questionnaire which has been completed and served by another party pursuant toPractice Direction 31B is to be treated as if it is a document which has been disclosed."
"(i) The court should start from the principle that very good reasons are required for departing from the normal rule of publicity. That is the normal rule because, as Lord Diplock put it in Home Office v Harman[1983] AC 280 at p303C, citing both Jeremy Bentham and Lord Shaw of Dunfermline in Scott v Scott, "
"'The duty placed upon the patentee to make full disclosure of all relevant documents (which is required in amendment proceedings) is one which should not be fettered by any action of the courts. Reluctance of this court to go into camera to hear evidence in relation to documents which are privileged which could be used in other jurisdictions, would tend to make patentees reluctant to disclose the full position. That of course would not be in the interest of the public.' "