I did not say that patents were cheap. I said they are relatively cheap. Cheap compared to cost of defending the patent. Of course, most patents are not valuable enough for a Microsoft or GM to attack.
Of course, most patents are not valuable enough for a Microsoft or GM to attack.
And those big boys do sometimes lose (I was personally involved in a litigation where one of those companies paid out a fraction of a Billion dollars to the owner of the patent they infringed.)
I can attest that of the hundreds of patents I have obtained in my career, only one has ever been litigated. But many (surely not all, or even a majority) provide an ample economic benefit to their owners.
Last year, I had patent clients (of my solo office, I’m not in a big firm) that were acquired in friendly buyouts for $100m and $6b, respectively. You think that would not have happened if they had no protection for their technology? (Granted, I did a lot of trademark protection work for the $100m company.)