Inventor
KEITH CARL W
US23 patents
⚠️ This page may combine multiple inventors who share the name “KEITH CARL W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
12 patentsUS5607024AMar 4, 1997
Stability enhanced drill bit and cutting structure having zones of varying wear resistance
SMITH INTERNATIONAL271 citations99
US5549171AAug 27, 1996
Drill bit with performance-improving cutting structure
SMITH INTERNATIONAL214 citations99
US5937958AAug 17, 1999
Drill bits with predictable walk tendencies
SMITH INTERNATIONAL115 citations98
US5582261ADec 10, 1996
Drill bit having enhanced cutting structure and stabilizing features
SMITH INTERNATIONAL115 citations98
US5551522ASep 3, 1996
Drill bit having stability enhancing cutting structure
SMITH INTERNATIONAL109 citations98
US6164394ADec 26, 2000
Drill bit with rows of cutters mounted to present a serrated cutting edge
SMITH INTERNATIONAL114 citations97
US6564886B1May 20, 2003
Drill bit with rows of cutters mounted to present a serrated cutting edge
SMITH INTERNATIONAL63 citations96
US5607025AMar 4, 1997
Drill bit and cutting structure having enhanced placement and sizing of cutters for improved bit stabilization
SMITH INTERNATIONAL80 citations96
US5906246AMay 25, 1999
PDC cutter element having improved substrate configuration
SMITH INTERNATIONAL57 citations95
US6148937ANov 21, 2000
PDC cutter element having improved substrate configuration
SMITH INTERNATIONAL43 citations92
US5592996AJan 14, 1997
Drill bit having improved cutting structure with varying diamond density
SMITH INTERNATIONAL42 citations92
US5737980AApr 14, 1998
Brazing receptacle for improved PCD cutter retention
SMITH INTERNATIONAL42 citations90
DRESSER IND
5 patentsUS5090492AFeb 25, 1992
Drill bit with vibration stabilizers
DRESSER IND138 citations98
US5265685ANov 30, 1993
Drill bit with improved insert cutter pattern
DRESSER IND94 citations95
US5099929AMar 31, 1992
Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes
DRESSER IND92 citations95
US5238075AAug 24, 1993
Drill bit with improved cutter sizing pattern
DRESSER IND85 citations94
US5346025ASep 13, 1994
Drill bit with improved insert cutter pattern and method of drilling
DRESSER IND36 citations92