Walter H. Fertl

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for determining characteristics of clay-bearin...
- Patent number 4,953,399
- Issue date Sep 4, 1990
- Western Atlas International, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for determining characteristics of clay-bearin...
- Patent number 4,756,189
- Issue date Jul 12, 1988
- Western Atlas International, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Determination of water or residual oil saturation in earth formatio...
- Patent number 4,700,140
- Issue date Oct 13, 1987
- Western Atlas International, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of determining shear wave travel time in subsurface formations
- Patent number 4,636,994
- Issue date Jan 13, 1987
- Dresser Industries, Inc.
- Walter H. Fertl
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for determining characteristics of clay-bearin...
- Patent number 4,622,849
- Issue date Nov 18, 1986
- Dresser Industries, Inc.
- Walter H. Fertl
- G01 - MEASURING TESTING
Information Patent Grant
Determination of water saturation in earth formations independent o...
- Patent number 4,617,517
- Issue date Oct 14, 1986
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for determining characteristics of clay-bearin...
- Patent number 4,594,887
- Issue date Jun 17, 1986
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for identifying vanadium in earth formations
- Patent number 4,507,553
- Issue date Mar 26, 1985
- Dresser Industries, Inc.
- Donald W. Oliver
- G01 - MEASURING TESTING
Information Patent Grant
Determination of water saturation in earth formations independent o...
- Patent number 4,494,071
- Issue date Jan 15, 1985
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for determining characteristics of clay-bearin...
- Patent number 4,484,470
- Issue date Nov 27, 1984
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for evaluating multiple stage fracturing or ea...
- Patent number 4,415,805
- Issue date Nov 15, 1983
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for monitoring flood front movement during water flooding of...
- Patent number 4,399,359
- Issue date Aug 16, 1983
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for ascertaining optimum location for well stimulation and/o...
- Patent number RE31122
- Issue date Jan 11, 1983
- Dresser Industries, Inc.
- Walter H. Fertl
- 166 - Wells
Information Patent Grant
Method for determining effective reservoir porosity
- Patent number 4,346,592
- Issue date Aug 31, 1982
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for in situ determination of the cation exchange capacities...
- Patent number 4,263,509
- Issue date Apr 21, 1981
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for ascertaining optimum location for well stimulation and/o...
- Patent number 4,187,908
- Issue date Feb 12, 1980
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for detecting fractures in formations surrounding earth bore...
- Patent number 4,178,506
- Issue date Dec 11, 1979
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for monitoring fluid movement behind casing in oil and gas w...
- Patent number 4,173,718
- Issue date Nov 6, 1979
- Dresser Industries, Inc.
- Walter H. Fertl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Continuous quality control of mined hard and soft coals
- Patent number 4,118,623
- Issue date Oct 3, 1978
- Continental Oil Company
- Walter H. Fertl
- G01 - MEASURING TESTING
Information Patent Grant
Mining and drilling control of distance to the coal-shale interface...
- Patent number 4,115,688
- Issue date Sep 19, 1978
- Continental Oil Company
- Walter H. Fertl
- G01 - MEASURING TESTING
Information Patent Grant
Method for detecting and locating sand producing zones in friable,...
- Patent number 3,949,220
- Issue date Apr 6, 1976
- Continental Oil Company
- Derry D. Sparlin
- G01 - MEASURING TESTING
Information Patent Grant
Method for detecting and locating water-producing zones and/or wate...
- Patent number 3,940,612
- Issue date Feb 24, 1976
- Continental Oil Company
- Derry D. Sparlin
- G01 - MEASURING TESTING

Walter H. Fertl

Person

Patents Grantslast 30 patents

Method and apparatus for determining characteristics of clay-bearin...

Method and apparatus for determining characteristics of clay-bearin...

Determination of water or residual oil saturation in earth formatio...

Method of determining shear wave travel time in subsurface formations

Method and apparatus for determining characteristics of clay-bearin...

Determination of water saturation in earth formations independent o...

Method and apparatus for determining characteristics of clay-bearin...

Method and apparatus for identifying vanadium in earth formations

Determination of water saturation in earth formations independent o...

Method and apparatus for determining characteristics of clay-bearin...

Method and apparatus for evaluating multiple stage fracturing or ea...

Method for monitoring flood front movement during water flooding of...

Method for ascertaining optimum location for well stimulation and/o...

Method for determining effective reservoir porosity

Method for in situ determination of the cation exchange capacities...

Method for ascertaining optimum location for well stimulation and/o...

Method for detecting fractures in formations surrounding earth bore...

Method for monitoring fluid movement behind casing in oil and gas w...

Continuous quality control of mined hard and soft coals

Mining and drilling control of distance to the coal-shale interface...

Method for detecting and locating sand producing zones in friable,...

Method for detecting and locating water-producing zones and/or wate...