what steps to take when research result is patentable
If what you have is potentially patentable do not publish any critical element before filing the patent application or you risk losing eligibility due to existence of prior art (even if it is yours!).

Be aware that your university may claim ownership of the IP since it concerns ideas that you got in the context of a project while they were paying you (my university would claim partial ownership). This need not be a problem, as this also means they get to pay the piper. This is not necessarily an issue since, if your name is on the patent, you are entitled to a slice of the cake.

You should really talk to patent experts. Your university probably has them. Most universities have a dedicated tech transfer office (TTO) which handles patents, spin-offs and industrial collaboration. They have the expertise to guide you in such endeavours.