Quoted from Mr_Tantrum:
What is the patent number? Patents are only as good as the claims within them, and variants can exist without being in violation. To deem that SH has some patent without actually referencing the specific patent doesn’t really do much for anyone.
I was merely pointing out something I am aware of (I have personally visited the Suzo Happ factory in China and viewed these buttons). They told me that they had a patent on them, that was good enough for me.
If by pointing out that further investigation should be done because of what I know isn't enough to trigger people to go and look for themselves, well, I have no intention of wasting my time doing so. I'm not making these so I have no interest in finding out, just trying to offer assistance by imparting some first hand knowledge.