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Ever wondered about the cryptic codes which are sometimes appended to patent and application numbers, e.g. 'A1' or 'B2'?  If so, then here is an explanation of everything you need to know.  And, as an added bonus, there is a little more insight into the way Apple has been managing its Australian patent portfolio in the years leading up to its legal action against Samsung!
Mark Summerfield's profile photoJakke Mäkelä's profile photo
Thanks for the excellent summary! Even though I often disagree with the conclusions, these blogs are a genuine joy to read -- crisp, concise, understandable, and non-lawyerly. :) 
Thank you for your kind words. It is not necessary to agree on everything. I am glad you find my blog useful.
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