Ramey & Schwaller wishes to congratulate its client CNPC USA CORPORATION on issuance of U.S. Patent Number 10,563,464 titled CONVEX RIDGE TYPE NON -PLANAR CUTTING TOOTH AND DIAMOND DRILL BIT on February 18, 2020. The present invention provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit. Ramey & Schwaller is a full-service intellectual property law firm working with a national client base from our Houston, Texas office. We are dedicated to enhancing client results through efficient practice management, innovative technologies, and the use of skilled professionals.