"Some interesting insight into this, or at least how it worked at my last job: We'd create drawings, either by hand or on the computer, then our patent law firm would actually create the patent drawings. So they'd use their style and programs to create this style of drawing. So, either this was essentially traced from a computer program and the facial details and stuff were added by the patent artist (hilarious), or this was redrawn from an awful original hand sketch (also hilarious)"