Starting a physical product company? You’re gonna need a lawyer
I think it's important to point out that the author is CEO of edisonlf.com, a law firm focused on suing IP infringers. I don't really think that cheapens any of his advice, and heck, he may have even decided to start the Edison business after dealing with so much infringement in his toy business. Still, he's not a disinterested party and he should have disclosed this more clearly in his article.