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How does trademark work with prior use of the name?
Discussion
Depends how much you want to spend on lawyers
I think in court if there is public information of the product before the trademark, then the trademark is not valid. That is why when developing patents you have to be secretive and be careful with sharing data prior to patenting
Eventually, the only thing that will matter is who signs what at what block height.
Rename to ClockBlock :)
The plot thickens
LOL! Not surprised at all.
What’s the difference here?
One is not open source so the GitHub doesn’t exist 😂
Bahahaha 
you literally can't trademark a name, only a visual version of it, and to qualify it can't be the same as if i type it out in any common font
trademark is like a brand registration system
if they sold it with the exact and trademarked logo of block clock, which could be as minimal as a common font but with a simple geometric or colored shape next to it or through it or between it, then ok
but if it's not actually a violation of that obvious visible branding, and merely the name
then no
and someone is going to have egg on their face shitting on an open source DIY project like this
FYI you can't trademark a name
colours, marks, special styles, at best, can't just be a word made in a commonly available font. AT ALL
so, yeah, BLOCK CLOCK and BLOCKCLOCK and GitHub and github and Git Hub and gitHub nope, cannot trademark these
why do you think that microsoft's logo looked like this for a very long time:
see the ligature between o and s?
devices... here is an example which you can read the word "DEVICE" on the fine print on any can or bottle of coca cola:
it's not even the text that can be trademarked, it has to be something visual
https://github.com/pinheadmz/ClockBlocker It's been there for 8 years on github!