What all of you need to recognize is that this letter is useless. All of the silly info this guy requested, ummm yeah, he is entitled to none of it.
The letter was sent by Monster to establish notice of the patents, once the letter is received, mission accomplished. Damages can now accrue from the date of the letter.
This guy may have been an insurance litigator, but he is clearly clueless as to IP law. He probably spent days drafting this mess, time which was NOT spent managing his company...he sure showed them didn't he!!...LOL
He basically responded to the letter by requesting discovery, which only happens AFTER a suit is filed. Not to mention the fact, that all of the patent file histories are publicly available (he can get this info himself). Also, it is unlikely that he would EVER get details on licensing in court. Dates that products were used in commerce...LOL...completely irrelevant to patent cases. In essence, this is nothing more than a childish rant which will only encourage Monster to press their claim. If I were Monster's counsel there is no way in hell I would not follow through in filing suit now.
Perhaps this letter is impressive to rubes outside the legal profession that think "that'll show em", but I can tell you this letter exhibits embarrassingly poor judgment which will likely cost this company a lot of money.