I expect most of those patents won't apply to Zen 3. I imagine Zen 3 will bring improved clocks, FPU performance (possibly with AVX-512), and higher IPC. Although the family change from 17h to 19h does intrigue me...Mmmmm....
I also have been following the USPTO website closely. But I am not sure how he discovers those are going to make it to Zen 3
I imagine any game changing stuff will land with Zen 4.
I kind of wish AMD would roll out AM5 this year and either make the CPUs interchangable or make AM4 and AM5 versions of Zen 4000. Absent that, I wish they would commit to AM4 for a couple more years. As a Zen 1 Threadripper 1950X user, they have left me in an odd position. It seems that if I upgrade now, I will will have to buy another motherboard, only to have to buy another motherboard again for my next upgrade after that. I needed 16 cores, but I have no desire to upgrade to TRX40, as the 3950X would likely satisfy my workloads.
That being said, I am fine with riding things out until AM5 if need be.