Pilou here is a bit of history http://www.integrityware.com/products/SOLIDS++/history.html

Also read at bottom of this page http://architosh.com/news/1999-11/1104-sr-smlib.phtml (Robert Blomgren, Ph.D....co-developer of AGLib, the first commercially available NURBS library, which was sold to Alias Research in 1994, a subsidiary of Silicon Graphics Inc)