CDRS was originally started by some of the researchers from the University of Utah that created the Alpha_1 NURBS modeler.
After PTCs org wide rebranding, it was called Pro/Concept.
I worked on the other product in the group called Pro/3D Paint. It was the first product to use projective texture mapping to allow industrial designers to draw directly on 3D models instead of in texture space.
So many more memories I wouldn’t know where to begin…