Basically you get a patent and then you let it sit there until either someone sues you or if it's worthwhile suing others for infringement. Many people get patents for the reason of raising money. Investors like that.
And anyone who says they are getting it defensively I d like to see them what they would do if another company copies their patent and makes millions.
If you are a poor developer or inventor with a great idea, then just file a provisional patent. It is much cheaper but you have to turn it within 1 year into a real patent if your deem your enterprise worthwhile. You can do this provisional patent on your own. Just study the requirements (google it) . No lawyer needed. Checkout the uspto.gov

































