Inventor

RINGGENBERG PAUL D

US83 patents

⚠️ This page may combine multiple inventors who share the name “RINGGENBERG PAUL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RINGGENBERG PAUL D

HALLIBURTON ENERGY SERV INC

Vibration based power generator

Hydraulic control system for downhole tools

Circulating valve responsive to fluid flow rate therethrough and associated methods of servicing a well

Subsea repeater and method for use of the same

Method and apparatus for a downhole current generator

Electromagnetic signal repeater and method for use of same

Apparatus and method for perforating a subterranean formation

Methods of downhole testing subterranean formations and associated apparatus therefor

Electrically insulating gap subassembly for downhole electromagnetic transmission

Integrated well drilling and evaluation

Internal pressure operated circulating valve with annulus pressure operated safety mandrel

Electrically insulating gap subassembly for downhole electromagnetic transmission

Travel joint for use in a subterranean well

Hydraulic control and actuation system for downhole tools

Apparatus for testing and sampling open-hole oil and gas wells

Distributed temperature sensing in deep water subsea tree completions

Fiber optic wet connector acceleration protection and tolerance compliance

Single phase sampling apparatus and method

Annular flow safety valve and methods

Test, drill and pull system and method of testing and drilling a well

Apparatus for early evaluation formation testing

Selectively locking open a downhole tester valve

Automatic downhole pump assembly and method for operating the same

Early evaluation formation testing system

Hydraulic control and actuation system for downhole tools

Downhole sealing tools and method of use

Downhole sealing tools and method of use

Drilling formation tester, apparatus and methods of testing and monitoring status of tester

HALLIBURTON CO

Early evaluation by fall-off testing

Pressure test and bypass valve with rupture disc

Apparatus and method for communicating electrical signals in a well, including electrical coupling for electric circuits therein

Hydraulic lockout device for pressure controlled well tools

Multi-mode testing tool and method of testing

Flapper type annulus pressure responsive tubing tester valve

Round mandrel slip joint

Circulation valve and method for operating the same

Multi-mode testing tool and method of use

Early evaluation system

Differential pressure test/bypass valve and method for using the same

Bypass valve

Low pressure responsive downhold tool with hydraulic lockout

Apparatus for retaining axial mandrel movement relative to a cylindrical housing

Low pressure responsive tester valve with ratchet

Full bore sampler valve with time delay

Pressure operated circulating valve with releasable safety and method for operating the same

Assembly for reducing the force applied to a slot and lug guide

Method of well testing

HALLIBURTON ENERGY SERIVES INC

Fiber optic splice housing and integral dry mate connector system

WELLDYNAMICS INC

Distributed temperature sensing in deep water subsea tree completions

RINGGENBERG PAUL D

Formation testing apparatus and method