Sovelas on that document you provided is date in upper right corner:
- Date of Patent: Mar. 13.2012
Now take a look on one of the next comments after you:
Wikipedia says "Blockchain was invented by Satoshi Nakamoto in 2008 for use in the cryptocurrency bitcoin, as its public transaction ledger.[1]
How many wrong facts can be found of this forum. Mostly
this comments pass unnoticed by majority, but there are people
like me that scroll trough all thread just to see what interesting
there is.
In the end that is not so important, its public and open
technology. It is for all of us to use it and to somehow improve
this world with better tools. We have Blockchain as a gift, now
it is on us support it and use it.