Patents are a non-issue unless you plan on commercializing a solution, and if that is the case, you (or the government) could license what is needed.
How do you find out which patents you've touched upon without paying for lawyers? How do you find the money to license said patents before you've made any money from your product?
If you come up with a commercially viable (i.e. can make money) product or process, angel or VC money can help you get a jump start. In addition, those type of people have been through the process of helping to get patents on whatever unique stuff you bring to the table as well as providing management and negotiating experience should you find that your product or process requires licensing.
Or perhaps your new shiny thing has a very limited potential market (left-handed shrimp farmers, sane tea party members, etc). In that case you might make enough money to provide you and a few others with a nice comfortable living while never rising high enough to be noticed by the trolls. Over the past 24 years, my software product company (with a somewhat limited market) has been hit up by two trolls - one we paid to go away (the "license" fee was cheap), and one we fought (and made go away) because we had a bunch of prior art.
One of the keys to being a successful innovator is to concentrate more on solutions and less on obstacles. If you are a worrier, its probably best to make your mark through excellence in your craft and attention to detail rather than with leaps of imagination. True worriers (such as some accountants, CFO's, and editors I've met) can have real value to the companies they serve and can make significant coin. Not everyone is an Edison.