HP

Harold Pfutzner

Schlumberger Technology: 19 patents #250 of 7,293Top 4%
Saudi Arabian Oil: 2 patents #1,379 of 4,275Top 35%
Overall (All Time): #230,991 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12378882 Method for performing Raman spectroscopy within a logging while drilling instrument Bastian Sauerer 2025-08-05
12371990 Downhole flowmeter Mohammed Badri 2025-07-29
11988088 Downhole flowmeter Mohammed Badri 2024-05-21
11680481 Downhole flowmeter Mohammed Badri 2023-06-20
11530611 Method for performing Raman spectroscopy within a logging while drilling instrument Bastian Sauerer 2022-12-20
11520070 Effective medium theory of acidized carbonate matrix resistivity employed to calculate the apparent geometric parameters of the wormholes Dean Homan, John Rasmus, Gallyam Aidagulov 2022-12-06
11163089 Neutron imaging devices for cased wells and open boreholes Mohammed Badri, Mustapha Abbad 2021-11-02
11041974 X-ray imaging device for cased wells and open boreholes Mohammed Badri, Mustapha Abbad 2021-06-22
10247849 Method for measuring formation water salinity from within a borehole James A. Grau, Ronald E. Plasek, Raghu Ramamoorthy, Shouxiang Mark Ma 2019-04-02
10208582 Formation water salinity from borehole measurements Shouxiang Mark Ma, Nedhal M. Al-Musharfi, Pablo Saldungaray 2019-02-19
9002648 Method and apparatus for precise positioning of a borehole measurement instrument 2015-04-07
8990020 Method and apparatus for measuring the vertical separation of two stations in a borehole Peter Wraight 2015-03-24
8866068 Ion source with cathode having an array of nano-sized projections Jani Reijonen, Luke T. Perkins 2014-10-21
8700372 Method for 3-D gravity forward modeling and inversion in the wavenumber domain Ivan Priezzhev 2014-04-15
8527205 Gravity interpretation workflow in injection wells Fabienne Legendre 2013-09-03
7978804 Low power neutron generators Joel L. Groves 2011-07-12
7367392 Wellbore apparatus with sliding shields Khanh Duong, Jean Pierre Masson, Fernando Garcia-Osuna, Alain Dumont, Tetsuya Tanaka 2008-05-06
7364007 Integrated acoustic transducer assembly Fernando Garcia-Osuna, Alain Dumont, Tetsuya Tanaka 2008-04-29
6097786 Method and apparatus for measuring multiphase flows Joel L. Groves, Jean-Pierre Poyet, Peter Wraight 2000-08-01