Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Christopher E. Cunningham

FMFmc: 44 patents #22 of 1,735Top 2%
Chesterfield, MO: #35 of 6,461 inventorsTop 1%
Missouri: #159 of 23,789 inventorsTop 1%
Overall (All Time): #57,449 of 4,157,543Top 2%
48 Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
6497277 Internal gate valve for flow completion systems Christopher D. Bartlett, Thomas L. Hergarden, Philip Hernandez, Michael E. Wilson, Jr. 2002-12-24
6494257 Flow completion system Christopher D. Bartlett, Richard Kent, Nicholas Gatherar, David Harrold 2002-12-17
6494266 Controls bridge for flow completion systems Christopher D. Bartlett, Timothy Goggans, Jamie Patrick-Maxwell, Sylvester A. Joan, Stanley J. Rogala 2002-12-17
6488083 Tubing hanger system Christopher D. Bartlett, Richard Kent, Nicholas Gatherar 2002-12-03
6408947 Subsea connection apparatus Christopher D. Bartlett 2002-06-25
6365268 Deep sea insulation material Michael R. Williams 2002-04-02
6227300 Slimbore subsea completion system and method Christopher D. Bartlett 2001-05-08
6062769 Enhanced steel catenary riser system 2000-05-16
6053202 Fail-safe closure system for remotely operable valve actuator 2000-04-25
6004072 Self-orienting subsea flowline tapping arrangement 1999-12-21
5992526 ROV deployed tree cap for a subsea tree and method of installation Vincent H. Vetter, Shiva P. Singeetham, Edmund M. Mouret, Christopher D. Bartlett 1999-11-30
5941310 Monobore completion/intervention riser system Bradley D. Beitler 1999-08-24
5893389 Metal seals for check valves 1999-04-13
5890450 Linear stroke valve position indicator Robert Shawn Hamell, Harold Brian Skeels, Christopher D. Bartlett 1999-04-06
5868203 Apparatus and method for subsea connections of trees to subsea wellheads 1999-02-09
5842816 Pig delivery and transport system for subsea wells 1998-12-01
5819852 Monobore completion/intervention riser system Bradley D. Beitler 1998-10-13
5791657 Seals containing composite non-extrusion springs David Cain, Andrew C. Posluszny, Rudolf R. Schoen, Jerald L. Smith, Robert Keith Stoddard, Jr. +3 more 1998-08-11
5769162 Dual bore annulus access valve Christopher D. Bartlett 1998-06-23
5722796 Hinge-over subsea template production system Tore Halvorsen, Jimmy D. Andrews, Luis Antonio Gomes Araujo, Sverre Corneliussen, Martin Faella +6 more 1998-03-03
5259451 Down hole well tool with pressure relief chamber Richard Kent 1993-11-09
5044672 Metal-to-metal sealing pipe swivel joint Harold Brian Skeels, Edmund M. Mouret, Donald M. Underwood, Michael J. Krenek 1991-09-03
5044432 Well pipe hanger with metal sealing annulus valve Rolf August Heinrich Ruesse 1991-09-03