Inventor · disambiguated record
Michael A. Siracki
Also filed as: CAWTHORNE CHRIS E · CISNEROS DENNIS · SIRACKI MICHAEL · SIRACKI MICHAEL A
42 granted patents·2,230 citations·filing 1991–2014
99Inventor score
Top patents by PatentIndex Score
42 records- 0196US8991523B2Rolling cutter assembled directly to the bit pocketsSHEN YUELIN·Filed 2011·Granted Mar 31, 2015·41 cites·43 claims
- 0295US5351770AUltra hard insert cutters for heel row rotary cone rock bit applicationsSMITH INTERNATIONAL·Filed 1993·Granted Oct 4, 1994·183 cites·24 claims
- 0394US6290008B1Inserts for earth-boring bitsSMITH INTERNATIONAL·Filed 1998·Granted Sep 18, 2001·180 cites·68 claims
- 0493US5722499AMultiple diamond layer polycrystalline diamond composite cuttersSMITH INTERNATIONAL·Filed 1995·Granted Mar 3, 1998·197 cites·12 claims
- 0592US6199645B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 1998·Granted Mar 13, 2001·125 cites·13 claims
- 0691US6460637B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 2000·Granted Oct 8, 2002·86 cites·20 claims
- 0791US5494122AComposite nozzles for rock bitsSMITH INTERNATIONAL·Filed 1994·Granted Feb 27, 1996·130 cites·4 claims
- 0891US5341890AUltra hard insert cutters for heel row rotary cone rock bit applicationsSMITH INTERNATIONAL·Filed 1993·Granted Aug 30, 1994·138 cites·21 claims
- 0990US6651757B2Toughness optimized insert for rock and hammer bitsSMITH INTERNATIONAL·Filed 2001·Granted Nov 25, 2003·62 cites·31 claims
- 1090US6484826B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 2000·Granted Nov 26, 2002·82 cites·36 claims
- 1187US5322138AChisel insert for rock bitsSMITH INTERNATIONAL·Filed 1993·Granted Jun 21, 1994·97 cites·15 claims
- 1286US6361873B1Composite constructions having ordered microstructuresSMITH INTERNATIONAL·Filed 2000·Granted Mar 26, 2002·78 cites·41 claims
- 1386US5172777AInclined chisel inserts for rock bitsSMITH INTERNATIONAL·Filed 1991·Granted Dec 22, 1992·98 cites·6 claims
- 1483US6227318B1Superhard material enhanced inserts for earth-boring bitsSMITH INTERNATIONAL·Filed 1998·Granted May 8, 2001·92 cites·48 claims
- 1583US5842701ADual functioning seal for rock bitsSMITH INTERNATIONAL·Filed 1996·Granted Dec 1, 1998·57 cites·54 claims
- 1680US5172779ARadial crest insertSMITH INTERNATIONAL·Filed 1991·Granted Dec 22, 1992·73 cites·9 claims
- 1778US9482058B2Cutting structures and structures for retaining the sameSMITH INTERNATIONAL·Filed 2014·Granted Nov 1, 2016·5 cites·21 claims
- 1876US5421424ABowed out chisel insert for rock bitsSMITH INTERNATIONAL·Filed 1994·Granted Jun 6, 1995·56 cites·7 claims
- 1973US7201241B2Self relieving sealSMITH INTERNATIONAL·Filed 2005·Granted Apr 10, 2007·10 cites·20 claims
- 2072US6345673B1High offset bits with super-abrasive cuttersSMITH INTERNATIONAL·Filed 1998·Granted Feb 12, 2002·52 cites·43 claims
- 2172US6311793B1Rock bit nozzle and retainer assemblySMITH INTERNATIONAL·Filed 1999·Granted Nov 6, 2001·61 cites·54 claims
- 2269US6336512B1Drill bit having canted sealSMITH INTERNATIONAL·Filed 2000·Granted Jan 8, 2002·35 cites·29 claims
- 2368US6179296B1Dual functioning seal for rock bitsSMITH INTERNATIONAL·Filed 1998·Granted Jan 30, 2001·27 cites·32 claims
- 2465US9903162B2Spacing of rolling cutters on a fixed cutter bitSMITH INTERNATIONAL·Filed 2012·Granted Feb 27, 2018·2 cites·15 claims
- 2565US6170830B1Dual functioning seal for rock bitsSMITH INTERNATIONAL·Filed 1998·Granted Jan 9, 2001·23 cites·31 claims
- 2662US7188682B2Multi-stage diffuser nozzleSMITH INTERNATIONAL·Filed 2003·Granted Mar 13, 2007·25 cites·153 claims
- 2761US7387178B2Self relieving sealSMITH INTERNATIONAL·Filed 2007·Granted Jun 17, 2008·5 cites·20 claims
- 2861US6419034B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 2000·Granted Jul 16, 2002·17 cites·35 claims
- 2961US5538093AHigh flow weld-in nozzle sleeve for rock bitsSMITH INTERNATIONAL·Filed 1994·Granted Jul 23, 1996·29 cites·20 claims
- 3058US5669459ANozzle retention system for rock bitsSMITH INTERNATIONAL·Filed 1995·Granted Sep 23, 1997·37 cites·11 claims
- 3155US6571887B1Directional flow nozzle retention bodySII SMITH INTERNATIONAL INC·Filed 2000·Granted Jun 3, 2003·21 cites·26 claims
- 3254US7229077B2Ordered elastomeric composite materialSMITH INTERNATIONAL·Filed 2003·Granted Jun 12, 2007·7 cites·26 claims
- 3354US6976548B2Self relieving sealSMITH INTERNATIONAL·Filed 2003·Granted Dec 20, 2005·13 cites·56 claims
- 3452US7690446B2Single cone rock bit having inserts adapted to maintain hole gage during drillingSMITH INTERNATIONAL·Filed 2008·Granted Apr 6, 2010·2 cites·20 claims
- 3550US6460636B1Drill bit inserts with variations in thickness of diamond coatingSMITH INTERNATIONAL·Filed 1999·Granted Oct 8, 2002·27 cites·24 claims
- 3647US7100711B2Single cone rock bit having inserts adapted to maintain hole gage during drillingSMITH INTERNATIONAL·Filed 2003·Granted Sep 5, 2006·8 cites·34 claims
- 3747US5853055ARock bit with an extended center jetSMITH INTERNATIONAL·Filed 1996·Granted Dec 29, 1998·24 cites·62 claims
- 3845US7032693B2Preformed tooth for tooth bitSMITH INTERNATIONAL·Filed 2003·Granted Apr 25, 2006·7 cites·10 claims
- 3945US6863138B2High offset bits with super-abrasive cuttersSMITH INTERNATIONAL·Filed 2001·Granted Mar 8, 2005·6 cites·10 claims
- 4043US6719073B2Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit ballingSMITH INTERNATIONAL·Filed 2002·Granted Apr 13, 2004·7 cites·54 claims
- 4142US7401668B2Single cone rock bit having inserts adapted to maintain hole gage during drillingSMITH INTERNATIONAL·Filed 2006·Granted Jul 22, 2008·0 cites·17 claims
- 4232USRE37006EHigh flow weld-in nozzle sleeve for rock bitsSMITH INTERNATIONAL·Filed 1998·Granted Jan 2, 2001·5 cites·40 claims
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