<<Of course I am using an OGC publisher’s trademark, its mine. I can use it as often as I would like.
>>
That's missing my point. I suggested this as a way to write "in line" credit for OGC materials so that people could track down their original sources. If your SKU numbers contain your trademarks then nobody else could use them in a "credits" line of an OGL product. Re-read my post in context. It is no challenge of whether you know how to use your own TMs. It's in context of how others could universally credit your contributions without an individual licensing relationship with you and while being in compliance with the OGL.
