dberkowitz wrote:
You're better off spending your time learning to advance your art than trying to defend some small part of it.
Another great line to put in my book of quotes.
I can't count how many instances I've seen this prove true, and people in our trade benefit far more from sharing than guarding. On the other side, I'm quite sure the success and benefit rate is far far less for many luthiers attempts to profit from their patents.
If you have an idea that may sell thousands of units per year, you may do well to patent it. If you're simply patenting to secure a peculiar feature for your small production of instruments, you're unlikely to see any real benefits.
Still, it sounds like you're more interested in trademarks than patents, which are much easier and practical to obtain (though not necessarily any easier to enforce and protect).