No, inventor was created from the ground up by Autodesk, it was not a company bought by Autodesk.
I heard a similar story / romour (myth?) about inventor that goes like this
Autodesk created inventor from the ground up, it cost them a lot of money much more than they expected when they started out because of issues and development that was required to get it to take a market share.
When they decided they needed a 3-d modelling software for buildings they decided to buy architectural desk top because it would cost them too much and take too long to develop their own (I heard the statement never again would they do what they did with inventor)...ADT morphed into Revit and the building design package we now have.... Along the way Autodesk have bought out many smaller companies to provide plugin applications / kill off competition to develop Revit but never again would they develop their own from the ground up.
I was surprised to read fusion360 was a ground up development by Autodesk in that post as what I had been told 10-15 years ago may now be incorrect.
I just want uccnc to be the best and most accessible it can be as your attitude has always been "can do" with proactive development
Maybe now I've gone past the midlife bump I can see the end of the road and wonder why people waste time developing things that all do the same thing (different price point / quality / market I understand Hass and hobby mill or lathe no issue or comparison.... 10 different pendants that all talk different languages, do the same thing and are around the same price point.... Why waste time in life .... It's just the a smaller piece of the pie.... 2 different or 3 or 4 I understand.... More than that .... Life's too short ... Maybe the margins and market are higher and larger than I think and it's just another way to earn a living and expend time in life