Originally Posted by Stereodude
It's not even "stealing". Patents exist to prevent someone from making money by commercially using another person's patented idea(s). This occurs via giving the person holding the patent legal recourse against the person infringing. A patent doesn't prevent someone from using another person's patented idea for their own use because there's no commercial infringement.
Of course, you're correct, technically speaking, but...it should be left to the inventor to publish or not to publish the information in a public forum.
Tom has generously posted in these and other DIY forums over the years, and that's where the real value lies, not in going against his wishes just because it's legally doable.
I disagree with Ivan's approach. It should be enough to mention that Tom would rather the post be edited out and those who are truly interested in building their own clone of his invention look forward to Tom's input, as he sees fit to offer it.
Although I agree that most commercial subwoofer enterprises don't participate in forum discussions, it's naive to think that they aren't ever-present as lurkers. It's a 2-way street. They nick as much from us as we might from them.
I've been along for the ride from the beginning. The best drivers in the world were all partially designed by and/or introduced through and for DIYers.
Over the evolution of the state of the art, the F3 has extended by 2 octaves. By any measurements regime one can name, DIY creations sit firmly at the top of every list.
Referring to us as a group in the light that we're a bunch of rubes who crudely copy existing designs is condescending and a fallacy.
Still, I would never post information without asking permission from the inventor, whether or not it's legal otherwise is irrelevant. It's the information age, not the ignoramus age.