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%
Overall (All Time): #36,768 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 25 most recent of 62 patents

Patent #TitleCo-InventorsDate
12070588 Injector and injection method therefor Ales Alajbegovic, Edward Tate, Norman Viner, Maddison Albert, Gary P. Kobinger +1 more 2024-08-27
11002082 Millable bit to whipstock connector Shantanu N. Swadi, Charles H. Dewey, Tuan Nguyen, Shelton W. Alsup 2021-05-11
10704329 Cementing whipstock assembly and running tool with releasably engaged cement tube for minimizing downhole trips during lateral drill sidetracking operations Charles H. Dewey 2020-07-07
10487606 Balancing load on milling cutting elements Shantanu N. Swadi, Shelton W. Alsup 2019-11-26
9512680 Coring bit to whipstock systems and methods Shantanu N. Swadi, Charles H. Dewey, Robert Utter, Praful C. Desai 2016-12-06
9228406 Extended whipstock and mill assembly Shantanu N. Swadi, Shelton W. Alsup 2016-01-05
9212873 Second cut arrow shaft extension Christopher Hartman, Ronald Mitchell Mcivor 2015-12-15
9206648 Cementing whipstock apparatus and methods Charles H. Dewey, Shantanu N. Swadi, Philip M. Gregurek 2015-12-08
8967300 Pressure activated flow switch for a downhole tool Charles H. Dewey, Daniel LeVon 2015-03-03
8881845 Expandable window milling bit and methods of milling a window in casing Charles H. Dewey, Praful C. Desai 2014-11-11
8820437 Cementing whipstock apparatus and methods David L. Ervin, Charles H. Dewey, Shantanu N. Swadi, Philip M. Gregurek 2014-09-02
8200987 Dynamic object-level code translation for improved performance of a computer processor William T. Devine, Sebastian T. Ventrone 2012-06-12
8186458 Expandable window milling bit and methods of milling a window in casing Charles H. Dewey, Praful C. Desai 2012-05-29
8098784 Systems, methods and computer program products for high speed data transfer using a plurality of external clock signals 2012-01-17
7617367 Memory system including a two-on-one link memory subsystem interconnection Kevin C. Gower 2009-11-10
7613265 Systems, methods and computer program products for high speed data transfer using an external clock signal 2009-11-03
7597158 Drilling and hole enlargement device Charles H. Dewey, Lance D. Underwood, Ronald G. Schmidt 2009-10-06
7506703 Drilling and hole enlargement device Charles H. Dewey, Lance D. Underwood, Ronald G. Schmidt 2009-03-24
7491588 Method and structure for buried circuits and devices William T. Devine, Kris V. Srikrishnan 2009-02-17
7448446 Thru tubing tool and method Charles H. Dewey, Chad D. Evans 2008-11-11
7418580 Dynamic object-level code transaction for improved performance of a computer William T. Devine, Sebastian T. Ventrone 2008-08-26
7377328 Expandable anchor Charles H. Dewey, Brian Cruickshank 2008-05-27
7373988 Liner running system and method Charles H. Dewey, Brian Cruickshank 2008-05-20
7320918 Method and structure for buried circuits and devices William T. Devine, Kris V. Srikrishnan 2008-01-22
7178589 Thru tubing tool and method Charles H. Dewey, Chad D. Evans 2007-02-20