I took the Kayten course [1] to review for the Patent Bar exam. It was three days, and then I spent a couple months reviewing all the old exam questions.
[1] https://passingpatentbarwithprg.tumblr.com/post/9992218513/w...
[1] https://passingpatentbarwithprg.tumblr.com/post/9992218513/w...