Inventor
SIRACKI MICHAEL A
US37 patents
⚠️ This page may combine multiple inventors who share the name “SIRACKI MICHAEL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
35 patentsUS6290008B1Sep 18, 2001
Inserts for earth-boring bits
SMITH INTERNATIONAL180 citations99
US5351770AOct 4, 1994
Ultra hard insert cutters for heel row rotary cone rock bit applications
SMITH INTERNATIONAL183 citations99
US6227318B1May 8, 2001
Superhard material enhanced inserts for earth-boring bits
SMITH INTERNATIONAL92 citations98
US6199645B1Mar 13, 2001
Engineered enhanced inserts for rock drilling bits
SMITH INTERNATIONAL125 citations98
US5494122AFeb 27, 1996
Composite nozzles for rock bits
SMITH INTERNATIONAL130 citations98
US5341890AAug 30, 1994
Ultra hard insert cutters for heel row rotary cone rock bit applications
SMITH INTERNATIONAL138 citations98
US6484826B1Nov 26, 2002
Engineered enhanced inserts for rock drilling bits
SMITH INTERNATIONAL82 citations97
US6460637B1Oct 8, 2002
Engineered enhanced inserts for rock drilling bits
SMITH INTERNATIONAL86 citations97
US5722499AMar 3, 1998
Multiple diamond layer polycrystalline diamond composite cutters
SMITH INTERNATIONAL197 citations97
US6311793B1Nov 6, 2001
Rock bit nozzle and retainer assembly
SMITH INTERNATIONAL61 citations96
US5842701ADec 1, 1998
Dual functioning seal for rock bits
SMITH INTERNATIONAL57 citations96
US5421424AJun 6, 1995
Bowed out chisel insert for rock bits
SMITH INTERNATIONAL56 citations96
US5322138AJun 21, 1994
Chisel insert for rock bits
SMITH INTERNATIONAL97 citations96
US5172777ADec 22, 1992
Inclined chisel inserts for rock bits
SMITH INTERNATIONAL98 citations96
US5172779ADec 22, 1992
Radial crest insert
SMITH INTERNATIONAL73 citations96
US6361873B1Mar 26, 2002
Composite constructions having ordered microstructures
SMITH INTERNATIONAL78 citations95
US6651757B2Nov 25, 2003
Toughness optimized insert for rock and hammer bits
SMITH INTERNATIONAL62 citations93
US6179296B1Jan 30, 2001
Dual functioning seal for rock bits
SMITH INTERNATIONAL27 citations93
US6170830B1Jan 9, 2001
Dual functioning seal for rock bits
SMITH INTERNATIONAL23 citations93
US6419034B1Jul 16, 2002
Engineered enhanced inserts for rock drilling bits
SMITH INTERNATIONAL17 citations92
US6336512B1Jan 8, 2002
Drill bit having canted seal
SMITH INTERNATIONAL35 citations92
US5853055ADec 29, 1998
Rock bit with an extended center jet
SMITH INTERNATIONAL24 citations92
US5669459ASep 23, 1997
Nozzle retention system for rock bits
SMITH INTERNATIONAL37 citations92
US5538093AJul 23, 1996
High flow weld-in nozzle sleeve for rock bits
SMITH INTERNATIONAL29 citations92
US6460636B1Oct 8, 2002
Drill bit inserts with variations in thickness of diamond coating
SMITH INTERNATIONAL27 citations91
US7188682B2Mar 13, 2007
Multi-stage diffuser nozzle
SMITH INTERNATIONAL25 citations89
US7032693B2Apr 25, 2006
Preformed tooth for tooth bit
SMITH INTERNATIONAL7 citations74
US9903162B2Feb 27, 2018
Spacing of rolling cutters on a fixed cutter bit
SMITH INTERNATIONAL2 citations73
US9482058B2Nov 1, 2016
Cutting structures and structures for retaining the same
SMITH INTERNATIONAL5 citations73
US7100711B2Sep 5, 2006
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL8 citations73
US6719073B2Apr 13, 2004
Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling
SMITH INTERNATIONAL7 citations71
US7229077B2Jun 12, 2007
Ordered elastomeric composite material
SMITH INTERNATIONAL7 citations69
USRE37006EJan 2, 2001
High flow weld-in nozzle sleeve for rock bits
SMITH INTERNATIONAL5 citations63
US7690446B2Apr 6, 2010
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL2 citations62
US7401668B2Jul 22, 2008
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL0 citations48