Peter Bressler, former president of the Industrial Designers Society of America and himself the head of an established industrial design group, was called to the stand by Apple today as an expert witness in the Apple vs. Samsung trial to testify about three specific Apple patents. In his testimony, Bressler agreed generally with Apple that Samsung had copied many specific elements of the iPhone it its' post-iPhone smartphones. Under cross-examination, however, Bressler was less specific about how to judge copying.