Startup founder and Stanford alum (studied patent drafting and IP under some experienced patent attorneys for about six months).
Generally large companies won’t sue you until you hit $100M in annual revenue because it isn’t worth their time and effort until then. The advice we received for patent trolls is that they generally want to extract $10-20K and most companies will just pay them off to save the headache. It is unclear whether trolls will target very small companies or solopreneurs.