JC

John E. Campbell

SI Smith International: 26 patents #22 of 708Top 4%
IBM: 15 patents #7,450 of 70,183Top 15%
MG Masx Energy Services Group: 7 patents #2 of 9Top 25%
DS Drilex Systems: 3 patents #3 of 14Top 25%
TI Texas Instruments: 2 patents #5,248 of 12,488Top 45%
WS Wellbore Integrity Solutions: 1 patents #6 of 35Top 20%
📍 Houston, TX: #146 of 21,073 inventorsTop 1%
🗺 Texas: #1,168 of 125,132 inventorsTop 1%
Overall (All Time): #36,768 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 26–50 of 62 patents

Patent #TitleCo-InventorsDate
7152270 Assembly for removing debris from a windshield Raymond M. Genick, II 2006-12-26
7141853 Method and structure for buried circuits and devices William T. Devine, Kris V. Srikrishnan 2006-11-28
6935431 Well reference apparatus and method Charles H. Dewey, Wei Xu 2005-08-30
6899183 Casing attachment method and apparatus Charles H. Dewey, Wei Xu 2005-05-31
6842938 Assembly for removing debris from a windshield Raymond M. Genick, II 2005-01-18
6759282 Method and structure for buried circuits and devices William T. Devine, Kris V. Srikrishnan 2004-07-06
6686283 Shallow trench isolation planarization using self aligned isotropic etch Shawn T. Walsh, Somit Joshi, James B. Friedmann, Michael J. McGranaghan, Janice D. Makos +8 more 2004-02-03
6648069 Well reference apparatus and method Charles H. Dewey, Wei Xu 2003-11-18
6543536 Well reference apparatus and method Charles H. Dewey, Wei Xu 2003-04-08
6499537 Well reference apparatus and method Charles H. Dewey, Wei Xu 2002-12-31
6499538 Method and apparatus for forming an optimized window Charles H. Dewey 2002-12-31
6228741 Method for trench isolation of semiconductor devices Shawn T. Walsh, James B. Friedmann, Thomas Parrill, Der'E Jan, Joshua Robbins +2 more 2001-05-08
6025739 CMOS driver circuit for providing a logic function while reducing pass-through current William T. Devine 2000-02-15
5878818 Mechanical set anchor with slips pocket Joseph V. Hebert, Thomas F. Bailey 1999-03-09
5829531 Mechanical set anchor with slips pocket Joseph V. Hebert, Thomas F. Bailey 1998-11-03
5671281 Self modifying access code for altering capabilities Michael J. Chan, Steven F. Hajek, Paul Leonard Wiltgen 1997-09-23
5657820 Two trip window cutting system Thomas F. Bailey, Joseph V. Hebert 1997-08-19
5553144 Method and system for selectively altering data processing system functional characteristics without mechanical manipulation Frank A. Almquist, David F. Anderson, Michael J. Chan, Stephen W. Flaherty, Steven F. Hajek +7 more 1996-09-03
5530753 Methods and apparatus for secure hardware configuration Randall J. Easter, Vincent A. Spano, Myron W. Zajac 1996-06-25
5530749 Methods and apparatus for secure hardware configuration Randall J. Easter, Vincent A. Spano, Myron W. Zajac 1996-06-25
5431220 Whipstock starter mill assembly W. L. Lennon, Joseph V. Hebert, Thomas F. Bailey 1995-07-11
5427179 Retrievable whipstock Thomas F. Bailey, Larry F. Moeller 1995-06-27
5365587 Self modifying access code for altering capabilities Michael J. Chan, Steven F. Hajek, Paul Leonard Wiltgen 1994-11-15
5348107 Pressure balanced inner chamber of a drilling head Thomas F. Bailey, Larry F. Moeller 1994-09-20
5213158 Dual rotating stripper rubber drilling head Thomas F. Bailey 1993-05-25