There seems to be no relevant "MarkDown" trademark registered in the US. All the results I found were retail related: https://www.dropbox.com/s/su3ka2jgffuaxfe

There seems to be no relevant "MarkDown" trademark registered in the US. All the results I found were retail related: https://www.dropbox.com/s/su3ka2jgffuaxfe/Screenshot%202014-09-09%2012.08.25.png?dl=0 https://www.dropbox.com/s/su3ka2jgffuaxfe/Screenshot%202014-...