If you go to
this link, you can request it. Depending on when you got it, it may not be in digital form yet, so it might take some time for them to retrieve it.
Another way to get to that link is via the main lds.org page, click on "My Account" and then under "My Account" > Patriarchal Blessing.
Have you searched the
Help Center? Try doing a Google search and adding "site:churchofjesuschrist.org/help" to the search criteria.
So we can better help you, please edit your
Profile to include your general location.