P

Inventor

GRIMMER HARALD

DE28 patents
⚠️ This page may combine multiple inventors who share the name “GRIMMER HARALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAKER HUGHES INC

11 patents
US7806203B2Oct 5, 2010

Active controlled bottomhole pressure system and method with continuous circulation system

BAKER HUGHES INC60 citations98
US7721822B2May 25, 2010

Control systems and methods for real-time downhole pressure management (ECD control)

BAKER HUGHES INC52 citations98
US7174975B2Feb 13, 2007

Control systems and methods for active controlled bottomhole pressure systems

BAKER HUGHES INC77 citations98
US6981561B2Jan 3, 2006

Downhole cutting mill

BAKER HUGHES INC81 citations96
US8011450B2Sep 6, 2011

Active bottomhole pressure control with liner drilling and completion systems

BAKER HUGHES INC29 citations92
US7353887B2Apr 8, 2008

Control systems and methods for active controlled bottomhole pressure systems

BAKER HUGHES INC38 citations92
US7096975B2Aug 29, 2006

Modular design for downhole ECD-management devices and related methods

BAKER HUGHES INC52 citations92
US6543540B2Apr 8, 2003

Method and apparatus for downhole production zone

BAKER HUGHES INC31 citations92
US6907944B2Jun 21, 2005

Apparatus and method for minimizing wear and wear related measurement error in a logging-while-drilling tool

BAKER HUGHES INC23 citations87
US6957698B2Oct 25, 2005

Downhole activatable annular seal assembly

BAKER HUGHES INC12 citations84
US10731423B2Aug 4, 2020

Multi-start thread connection for downhole tools

BAKER HUGHES INC0 citations52

PETERS VOLKER

3 patents
US11459828B2Oct 4, 2022

Drilling apparatus using a self-adjusting deflection device and deflection sensors for drilling directional wells

PETERS VOLKER4 citations84
US11421480B2Aug 23, 2022

Drilling apparatus using a sealed self-adjusting deflection device for drilling directional wells

PETERS VOLKER5 citations84
US11428047B2Aug 30, 2022

Drilling assembly using a self-adjusting tilt device and sensors for drilling directional wellbores

PETERS VOLKER2 citations73

HOHL CARSTEN

2 patents
US8888474B2Nov 18, 2014

Downhole motors and pumps with asymmetric lobes

HOHL CARSTEN20 citations90
US9091264B2Jul 28, 2015

Apparatus and methods utilizing progressive cavity motors and pumps with rotors and/or stators with hybrid liners

HOHL CARSTEN11 citations82

KUMAR SUNIL

1 patent
US9057247B2Jun 16, 2015

Measurement of downhole component stress and surface conditions

KUMAR SUNIL168 citations98

DEEP VISION LLC

1 patent
US7114581B2Oct 3, 2006

Active controlled bottomhole pressure system & method

DEEP VISION LLC55 citations96

HUBER WITALI

1 patent
US10920493B2Feb 16, 2021

Method of forming stators for downhole motors

HUBER WITALI2 citations63

HERBIG CHRISTIAN

1 patent
US10385615B2Aug 20, 2019

Vibrationless moineau system

HERBIG CHRISTIAN1 citations60

BAKER HUGHES A GE CO LLC

1 patent
US11319753B2May 3, 2022

Method of forming stators for downhole motors

BAKER HUGHES A GE CO LLC0 citations59

BRAND MARCEL

1 patent
US11148327B2Oct 19, 2021

Method for forming a mud motor stator

BRAND MARCEL1 citations56

JOHN HENDRIK

1 patent
US8800688B2Aug 12, 2014

Downhole motors with a lubricating unit for lubricating the stator and rotor

JOHN HENDRIK1 citations52

LEHR JOERG

1 patent
US10738600B2Aug 11, 2020

One run reservoir evaluation and stimulation while drilling

LEHR JOERG0 citations51

TOSCHER STEFFEN

1 patent
US8925652B2Jan 6, 2015

Lateral well drilling apparatus and method

TOSCHER STEFFEN0 citations44

LI BAOYAN

1 patent
US9080435B2Jul 14, 2015

Upgoing drainholes for reducing liquid-loading in gas wells

LI BAOYAN0 citations40

GOEING FREDERIK

1 patent
US8786866B2Jul 22, 2014

Apparatus and method for determining inner profiles of hollow devices

GOEING FREDERIK0 citations36

GRIMMER HARALD

1 patent
US8973676B2Mar 10, 2015

Active equivalent circulating density control with real-time data connection

GRIMMER HARALD0 citations34