Reading through the book "Patent it Yourself", I come across this from "Inventor's Commandment 10":
Your patent application should not contain any statements that the courts could possibly use against you to limit the claims of your invention -- that is, do not mention any problems with the prior art that are not already known, or that your invention doesn't solve, ...
First, how could an invention's claims be limited by mentioning a problem with the prior art that is not "already known"? Couldn't an invention solve a problem that is known to the inventor but not yet to the industry at large? And, supposing the 'unknown' problem is only a subset of the problems the invention solves, how would mentioning such an unknown problem be used to limit the invention's claims?
And secondly, how could mentioning a problem that the invention doesn't solve limit the invention's claims? I see how mentioning an irrelevant problem would be a distraction unrelated to the application, but not sure I understand how that could actually limit the claims made.
I do not plan to mention any such problems with prior art in my application, but would like to understand better how mentioning such 'unknown' or irrelevant problems could limit a claim.