I have often wondered....
Deep thoughts for a Monday: Does anyone know if CAD functionality is "patentable"? In other words, why is it that every CAD software does not have similar processes for creating features since it's all found in calculus, physics, chemistry, Statics and Mechanics textbooks? I know that "code" is patentable and protected, but are individual features or methods of creating those features "proprietary"? Isn't and extrude and extrude in every software? I have witnesses years of "showdowns" between CAD software "mine is better", no "mine is better" type stuff and I always wondered about this.

