Inventor
BELNAP JOHN DANIEL
US16 patents
⚠️ This page may combine multiple inventors who share the name “BELNAP JOHN DANIEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
11 patentsUS7473287B2Jan 6, 2009
Thermally-stable polycrystalline diamond materials and compacts
SMITH INTERNATIONAL136 citations98
US7350601B2Apr 1, 2008
Cutting elements formed from ultra hard materials having an enhanced construction
SMITH INTERNATIONAL218 citations98
US7757791B2Jul 20, 2010
Cutting elements formed from ultra hard materials having an enhanced construction
SMITH INTERNATIONAL59 citations97
US9482056B2Nov 1, 2016
Solid PCD cutter
SMITH INTERNATIONAL8 citations84
US11492852B2Nov 8, 2022
Mechanical locking of cutting element with carbide matrix
SMITH INTERNATIONAL2 citations71
US11021913B2Jun 1, 2021
Direct casting of ultrahard insert in bit body
SMITH INTERNATIONAL0 citations62
US10781643B2Sep 22, 2020
Cutting elements formed from combinations of materials and bits incorporating the same
SMITH INTERNATIONAL0 citations52
US7757788B2Jul 20, 2010
Ultrahard composite constructions
SMITH INTERNATIONAL1 citations52
US10456889B2Oct 29, 2019
Shear cutter with improved wear resistance of WC—Co substrate
SMITH INTERNATIONAL0 citations51
US11008815B2May 18, 2021
Cutting elements with impact resistant diamond body
SMITH INTERNATIONAL0 citations49
US10352105B2Jul 16, 2019
Sintering of thick solid carbonate-based PCD for drilling application
SMITH INTERNATIONAL0 citations49
SCHLUMBERGER TECHNOLOGY CORP
4 patentsUS11578538B2Feb 14, 2023
Cutting element with nonplanar face to improve cutting efficiency and durability
SCHLUMBERGER TECHNOLOGY CORP6 citations83
US12078016B2Sep 3, 2024
Downhole cutting tool having cutting element with nonplanar face to improve cutting efficiency and durability
SCHLUMBERGER TECHNOLOGY CORP0 citations60
US11840891B2Dec 12, 2023
Cutting elements with modified diamond surface
SCHLUMBERGER TECHNOLOGY CORP0 citations51
US11828108B2Nov 28, 2023
Angled chisel insert
SCHLUMBERGER TECHNOLOGY CORP0 citations50