RFC 3979:Intellectual Property Rights in IETF Tech...
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7. Failure to Disclose


   There are cases where individuals are not permitted by their
   employers or by other factors to disclose the existence or substance
   of patent applications or other IPR.  Since disclosure is required
   for anyone submitting documents or participating in IETF discussions,
   a person who does not disclose IPR for this reason, or any other
   reason, must not contribute to or participate in IETF activities with
   respect to technologies that he or she reasonably and personally
   knows to be Covered by IPR which he or she will not disclose.
   Contributing to or participating in IETF discussions about a
   technology without making required IPR disclosures is a violation of
   IETF process.



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