Case: Patents/Anticipation & Obviousness (P.T.A.B.)

The Patent Trial and Appeal Board determined that some challenged claims of an inventor’s patent that concerns a pad dresser are unpatentable as anticipated by and obvious over prior art, in an inter partes review by Samsung Electronics Co. Ltd., Samsung Electronics America Inc., Samsung Semiconductor Inc., and Samsung Austin Semiconductor LLC. The board determined that the challenged claims are anticipated by and obvious over a research article titled “Organic Diamond Disk Versus Brazed Diamond Disk for Dressing a Chemical-Mechanical Polishing Pad,” prior art that discloses methods of bonding superabrasive particles in an organic matrix, and prior art that discloses ...