You could actually do some research if you wanted to and realize the truth of the statement, I'll give you the couch potato version, watch 'Shark Tank' or 'Dragon's Den' and rank all of the engagements where the question of a patent came up. Or you could do as I have done and participate in on M&A discussions for over a decade as part of the due diligence team and compare outcomes when patents exist and when they don't. Or you could approach the question using some basic reasoning, if the BigCorp is spending millions a year to develop a patent portfolio, how much of that value would carry over into the acquisition of SmallCorp with or without patents? Zero? Non-zero? How much non-zero? Can that number be deduced?

You don't have to believe some random guy commenting on Hackernews here, but you do have to actually think about it and test your assumptions.