Patent documents are rarely useful because they’re kept as general and opaque as possible to cover as many innovations as possible. I agree that it’s important to protect manufacturing, but patents are not the right way to go about it for at least two reasons: (1) they block innovation by design (e-ink screens are great examples) and (2) they create a huge barrier to entry for new ideas (think about how many lawyers are making a living on this) I disagree with the senders on so many things. But patents were invented in a world of monarchies and craftsmen. Time to go!