While most (outside the legal profession, at least) would regard patent attorneys as legal professionals, the fact is that we are not lawyers. For the most part this does not create any problems, and in fact can be handy when we want to avoid bearing the brunt of lawyer jokes at parties. (‘What does a lawyer get when you give him Viagra?’ ‘Taller!’)
However, not being lawyers means that communications between patent attorneys and their clients do not automatically have the benefit of any privilege that would attach to the same communication if it were to occur between lawyer and client. Citing authorities dating back as far as the 1880s, a Federal Court judge stated in 1993 that ‘[t]here was no such privilege [in respect of patent attorney-client communications] at common law. Indeed, communications between a client and his solicitor who was also the client's patent attorney were not privileged if the solicitor received them in his capacity as a patent attorney…’ (Wundowie Foundry Pty Ltd and Clarewood Pty Ltd v Milson Foundry Ltd and David Wallace [1993] FCA 422).
This is clearly a problem. Patent attorneys regularly communicate with their clients, and provide advice, in relation to matters that could be highly prejudicial in the event of litigation including, but not limited to, validity and infringement of patents. In the absence of an effective attorney-client privilege, clients might be discouraged from providing their attorneys with information necessary for them to provide full and considered advice, and attorneys in turn might decline to provide advice that may be adverse to the client in the event of litigation.
The solution to this problem is the provision of a statutory attorney-client privilege in section 200 of the Patents Act 1990. The scope of this privilege was extended by the Intellectual Property Laws Amendment (Raising the Bar) Act 2012, effective from 15 April 2013. However, caution is required in relation to certain communications and documents made before this date, which may remain subject to more limited protection from disclosure.
