Under

  http://www.ipjur.com/pki.pdf

I have posted a document 

"Trilateral Technical Standard for the On-line Exchange of IP 
Documents in a PKI Environment" dated November 05, 1999.

It conveys a commpon position of the European Patent Office, the US 
Patent Office, and the Japanese Patent Office on a crypto standard 
for electronic filing of patent applications and the like.

In general it seems to be not so bad (relying on well-known 
standards) but there are somewhat unclear text portions on key 
recovery.

Axel H Horns

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