Inventor
DURAIRAJAN BALA
US26 patents
⚠️ This page may combine multiple inventors who share the name “DURAIRAJAN BALA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
10 patentsUS7703557B2Apr 27, 2010
Fixed cutter bit with backup cutter elements on primary blades
SMITH INTERNATIONAL61 citations96
US10287825B2May 14, 2019
Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements
SMITH INTERNATIONAL18 citations93
US7831419B2Nov 9, 2010
PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
SMITH INTERNATIONAL22 citations92
US7441612B2Oct 28, 2008
PDC drill bit using optimized side rake angle
SMITH INTERNATIONAL28 citations92
US11215012B2Jan 4, 2022
Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements
SMITH INTERNATIONAL8 citations85
US10309156B2Jun 4, 2019
Cutting structures for fixed cutter drill bit and other downhole cutting tools
SMITH INTERNATIONAL8 citations84
US8887837B2Nov 18, 2014
Cutting structures for fixed cutter drill bit and other downhole cutting tools
SMITH INTERNATIONAL10 citations84
US7308957B2Dec 18, 2007
Fixed-head bit with stabilizing features
SMITH INTERNATIONAL9 citations74
US9145740B2Sep 29, 2015
Stabilizing members for fixed cutter drill bit
SMITH INTERNATIONAL1 citations51
US10030452B2Jul 24, 2018
Cutting structures for fixed cutter drill bit and other downhole cutting tools
SMITH INTERNATIONAL0 citations42
DURAIRAJAN BALA
10 patentsUS8833492B2Sep 16, 2014
Cutters for fixed cutter bits
DURAIRAJAN BALA32 citations93
US8783387B2Jul 22, 2014
Cutter geometry for high ROP applications
DURAIRAJAN BALA28 citations92
US8127863B2Mar 6, 2012
Drill bit having enhanced stabilization features and method of use thereof
DURAIRAJAN BALA18 citations89
US8112258B2Feb 7, 2012
PDC drill bit using optimized side rake angle
DURAIRAJAN BALA11 citations84
US8100202B2Jan 24, 2012
Fixed cutter bit with backup cutter elements on secondary blades
DURAIRAJAN BALA11 citations80
US9617794B2Apr 11, 2017
Feature to eliminate shale packing/shale evacuation channel
DURAIRAJAN BALA2 citations65
US9016407B2Apr 28, 2015
Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied
DURAIRAJAN BALA2 citations62
US9103170B2Aug 11, 2015
Impregnated drill bit
DURAIRAJAN BALA2 citations61
US8689908B2Apr 8, 2014
Drill bit having enhanced stabilization features and method of use thereof
DURAIRAJAN BALA3 citations59
US8783386B2Jul 22, 2014
Stabilizing members for fixed cutter drill bit
DURAIRAJAN BALA1 citations51