A few questions on the topic “Do I need certification and a patent for Raspberry PI 3 if sold in the Russian Federation”?

Question

Raspberry Pi

Tell me, do I need to certify and patent Raspberry PI 3 if I plan to sell a certain product under my brand (RPI3 + connected hardware + software)?
If so, please explain in human language how to do this, otherwise I did not find any clear answers.

1. Do I need to separately certify each board or the whole product, or can I get a certificate for the brand?
   
2. Is it possible to patent this bundle?
   
3. Do I need permission from the board manufacturer?