Growing community of inventors

Montgomery, TX, United States of America

Craig David Johnson

Average Co-Inventor Count = 3.77

ph-index = 19

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1,328

Craig David JohnsonPatrick W Bixenman (24 patents)Craig David JohnsonMatthew R Hackworth (23 patents)Craig David JohnsonJake A Danos (10 patents)Craig David JohnsonPeter Besselink (8 patents)Craig David JohnsonL McD Schetky (8 patents)Craig David JohnsonDavid Randolph Smith (6 patents)Craig David JohnsonMichael Dean Langlais (6 patents)Craig David JohnsonRodney J Wetzel (6 patents)Craig David JohnsonSudhir Pai (6 patents)Craig David JohnsonPeter V Howard (6 patents)Craig David JohnsonL McDonald Schetky (5 patents)Craig David JohnsonBarrie Hart (5 patents)Craig David JohnsonL Mcd Schetky (4 patents)Craig David JohnsonDavid Wei Wang (3 patents)Craig David JohnsonMartin Prado (3 patents)Craig David JohnsonMatthew R Hackworth (3 patents)Craig David JohnsonPatrick W Bixenman (3 patents)Craig David JohnsonJoel McClurkin (3 patents)Craig David JohnsonThomas H Zimmerman (2 patents)Craig David JohnsonLaurent Alteirac (2 patents)Craig David JohnsonAshish Sharma (2 patents)Craig David JohnsonStephane J Virally (2 patents)Craig David JohnsonKevin William Hayes (2 patents)Craig David JohnsonJason Bigelow (2 patents)Craig David JohnsonBruno Khan (2 patents)Craig David JohnsonKerby J Dufrene (2 patents)Craig David JohnsonDennis L Mills (2 patents)Craig David JohnsonKian Rasa (2 patents)Craig David JohnsonMatthew R Hackworth (2 patents)Craig David JohnsonPatrick W Bixenman (2 patents)Craig David JohnsonRod W Shampine (1 patent)Craig David JohnsonChristopher Del Campo (1 patent)Craig David JohnsonGary Martin Oddie (1 patent)Craig David JohnsonSongming Huang (1 patent)Craig David JohnsonDavid L Malone (1 patent)Craig David JohnsonClaude J Vercaemer (1 patent)Craig David JohnsonPeter Allan Goode (1 patent)Craig David JohnsonColin J Price-Smith (1 patent)Craig David JohnsonFranck Monmont (1 patent)Craig David JohnsonRobert Tennent (1 patent)Craig David JohnsonGerhard Schoonderbeek (1 patent)Craig David JohnsonDon Eubank (1 patent)Craig David JohnsonGarry Sinclair (1 patent)Craig David JohnsonLaurent N Alteirac (1 patent)Craig David JohnsonCraig David Johnson (44 patents)Patrick W BixenmanPatrick W Bixenman (36 patents)Matthew R HackworthMatthew R Hackworth (36 patents)Jake A DanosJake A Danos (16 patents)Peter BesselinkPeter Besselink (17 patents)L McD SchetkyL McD Schetky (8 patents)David Randolph SmithDavid Randolph Smith (43 patents)Michael Dean LanglaisMichael Dean Langlais (28 patents)Rodney J WetzelRodney J Wetzel (16 patents)Sudhir PaiSudhir Pai (13 patents)Peter V HowardPeter V Howard (9 patents)L McDonald SchetkyL McDonald Schetky (8 patents)Barrie HartBarrie Hart (5 patents)L Mcd SchetkyL Mcd Schetky (4 patents)David Wei WangDavid Wei Wang (10 patents)Martin PradoMartin Prado (5 patents)Matthew R HackworthMatthew R Hackworth (3 patents)Patrick W BixenmanPatrick W Bixenman (3 patents)Joel McClurkinJoel McClurkin (3 patents)Thomas H ZimmermanThomas H Zimmerman (18 patents)Laurent AlteiracLaurent Alteirac (15 patents)Ashish SharmaAshish Sharma (14 patents)Stephane J VirallyStephane J Virally (9 patents)Kevin William HayesKevin William Hayes (8 patents)Jason BigelowJason Bigelow (6 patents)Bruno KhanBruno Khan (4 patents)Kerby J DufreneKerby J Dufrene (3 patents)Dennis L MillsDennis L Mills (2 patents)Kian RasaKian Rasa (2 patents)Matthew R HackworthMatthew R Hackworth (3 patents)Patrick W BixenmanPatrick W Bixenman (2 patents)Rod W ShampineRod W Shampine (99 patents)Christopher Del CampoChristopher Del Campo (41 patents)Gary Martin OddieGary Martin Oddie (33 patents)Songming HuangSongming Huang (24 patents)David L MaloneDavid L Malone (17 patents)Claude J VercaemerClaude J Vercaemer (17 patents)Peter Allan GoodePeter Allan Goode (10 patents)Colin J Price-SmithColin J Price-Smith (9 patents)Franck MonmontFranck Monmont (7 patents)Robert TennentRobert Tennent (4 patents)Gerhard SchoonderbeekGerhard Schoonderbeek (3 patents)Don EubankDon Eubank (2 patents)Garry SinclairGarry Sinclair (1 patent)Laurent N AlteiracLaurent N Alteirac (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Schlumberger Technology Corporation (35 from 10,170 patents)

2. Halliburton Energy Services, Inc. (8 from 11,766 patents)

3. Schulmberger Technology Corporation (1 from 1 patent)

4. Schlumberger Canada Limited (16 patents)

5. Kentucky Oil Technology, N.v. (0 patent)


44 patents:

1. 10550670 - Expandable device for use in a well bore

2. 10053963 - Expandable device for use in a well bore

3. RE45244 - Expandable tubing and method

4. 8844627 - Intelligent well system and method

5. RE45099 - Expandable tubing and method

6. 8776876 - Expandable device for use in a well bore

7. RE45011 - Expandable tubing and method

8. 8474526 - Screen and method having a partial screen wrap

9. 8397804 - Expandable device for use in a well bore

10. 8230913 - Expandable device for use in a well bore

11. 8091631 - Intelligent well system and method

12. 7866708 - Joining tubular members

13. 7681640 - Screen and method having a partial screen wrap

14. 7493959 - Joining tubular members

15. 7398831 - Expandable tubing and method

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as of
12/6/2025
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