Which DACs are known to be sweet/rich/relaxed?

Have you read and understood the patent?

Do you understand what it implies, and is not being used in the world of audio?

There is enough information in the post that if you are determined you can find that person mentioned.

BTW, it comes across as a hater, no matter how much you use it try to hide behind being a ’skeptic’. Your demeanor is deeply offensive to all around (on the subjective side, anyway. Maybe you make some others happy. Who knows). You make situations worse, not better. More antagonistic, not less. And this is not the place for that. In person, you skepticism may be no problem at all. But this is the written word, which is an entirely different format and human relational avenue.

Grow some humanity and humility and use it in the face of (your own) personal perceptions of adversity on this forum. Be a human. Wind it down, not up.

If we were in person, I might relate more to you. Depends on what you look like, to me, in person. My experience in that sort of thing is the people go out and aggrandize themselve off of what I explain to them, and grab the brass ring in their field or invention or whatnot. I'm really tired of that, so if you want more, figure it out yourself.

I still say if you want to spend money your best investment would be a Trinnov, it could replace the DAC and preamp.  Why try to EQ with a DAC or wires buy a device designed for the purpose. 

So no name, and there are many many "top people" at TI. Their CTO is Ahmad Bahai. I don't know him personally, but I have met Kyle Flessner, who would probably reach out to Ahmad who could find out if anyone has even heard of you. They make not take it kindly if the report is not factual though.

So, as expected, not one test report, not one measurement, nothing 3rd party.

I don't have any desire to relate to someone who I feel is misleading. The patent communicates nothing about accomplishment (but does reveal a need to transition to a traditional material for connections, negating even some of the most basic claims). Patents are just that, patents. They are no guarantee of any performance criteria. You, the manufacturer are responsible for that.

So I will implore you again, if your claims are valid, then you should have readily available test reports, 3rd party test results, or other repeatable documentation that supports your very significant claims of superiority. If not, I have to assume they are just that, claims, with no foundation of basis to consider them valid.

You have made significant claims in your post, that is effectively an advertisement. Chastising someone who is asking you to back up your claims and making that a character fault on their part .... I will leave the conclusions on that to others.

You need this: 

It's kind of tasteless to keep throwing your credentials out there, I've heard this from you several times now on this forum and another forum where you use the name CinDyment.