1
Ralph R Grosswald, Jeffory B Anderson, Clair S Andrew: Method for the manufacture of pharmaceutical cellulose capsules. GS Technologies, John L Lee, December 16, 1997: US05698155 (233 worldwide citation)

A method and apparatus for manufacturing pharmaceutical capsules use an aqueous solution of a thermogelling cellulose ether composition and use capsule body pins and capsule cap pins as molds. The method involves heating the pins, dipping the pins into the solution to cause the solution to gelatiniz ...


2
Alan H Weinberg: Solar array system. John L Lee, July 17, 2001: US06262558 (155 worldwide citation)

A solar array system is described having a solar array


3
Bruce W Boyle, Raghu Madhavan, Jacques Jundt: Low-loss inductive couplers for use in wired pipe strings. Schlumberger Technology Corporation, John L Lee, William B Batzer, Dale Gaudier, March 15, 2005: US06866306 (95 worldwide citation)

A first flux-loop inductive coupler element electrically couples with a second flux-loop inductive coupler element. The first flux-loop inductive coupler element comprises a first ring-like core having high magnetic permeability and a conical-section annular first face transverse to the plane of the ...


4
Jon J Schroer, Oliver C Mullins: Analysis of downhole OBM-contaminated formation fluid. Schlumberger Technology Corporation, William B Batzer, John L Lee, August 14, 2001: US06274865 (66 worldwide citation)

A method and apparatus is provided for determining OBM filtrate fraction in a downhole fluid sample. One embodiment of the method is used when there is significant difference between the coloration of formation fluid and the coloration of OBM filtrate. Another is used when there is little or no diff ...


5
Oliver C Mullins, Jon J Shroer: Analysis of downhole OBM-contaminated formation fluid. Schlumberger Technology Corporation, William B Batzer, John L Lee, February 26, 2002: US06350986 (57 worldwide citation)

A method and apparatus is provided for determining a quality of downhole fluid. A series of measurements are taken of at least one parameter of borehole fluid that is indicative of OBM filtrate contamination. By curve-fitting, the series of the measured parameter values are used to create an asympto ...


6
Bikash K Sinha: Determining stress parameters of formations from multi-mode velocity data. Schlumberger Technology Corporation, William B Batzer, John L Lee, March 5, 2002: US06351991 (47 worldwide citation)

A method for determining unknown stress parameters in earth formation measures velocities in four sonic transmissions modes (compression, fast shear, slow shear and Stoneley) at a series of depths. Relationships between measured velocities and other measured values, two independent linear constants, ...


7
Edward W Sheehan, Ross C Willoughby, Joseph A Jarrell, David M Strand: Electrospray for chemical analysis. Waters Investments, John L Lee, Anthony J Janiuk, August 21, 2001: US06278111 (42 worldwide citation)

An improved electrospray (ES) apparatus has a low pressure ES chamber coupled to a desolvation chamber. The desolvation chamber desolvates the incoming analyte ions of the cone-jet with non-conductive energy. The apparatus stabilizes cone-jet formation in the ES chamber. The apparatus receives solva ...


8
Kenneth W Winkler, Ralph M D&apos Angelo: Method and tool for producing a formation velocity image data set. Schlumberger Technology Corporation, John L Lee, William B Batzer, John J Ryberg, January 13, 2004: US06678616 (36 worldwide citation)

Methods and tools are provided for real time velocity imaging of a borehole wall with sufficiently high resolution to identify vugs, worm holes, thin beds, dip angles, fractures and breakouts, for both open hole logging and logging while drilling in the presence of OBM's. A method is provided w ...


9
Wallace R A George: Multipole acoustic logging with azimuthal spatial transform filtering. Schlumberger Technology Corporation, John L Lee, William B Batzer, John J Ryberg, May 27, 2003: US06568486 (32 worldwide citation)

A method and apparatus are provided for detecting a received acoustic pulse of a selected azimuthal borehole mode in a liquid-containing borehole in a formation. The method uses a sonde having an axial array of acoustic receiver stations aligned with the borehole, each receiver station having an azi ...


10
Jahir Pabon: Active reduction of tool borne noise in a sonic logging tool. Schlumberger Technology Corporation, John L Lee, William B Batzer, John J Ryberg, December 30, 2003: US06671224 (27 worldwide citation)

A sonic logging tool that can be positioned within a fluid-filled borehole includes an axially distributed active vibration control system to reduce tool borne noise. The tool includes an acoustic transmitter, an axial array of acoustic receivers, and actuator assemblies that are coupled to cancel t ...