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Wallace Woon-Fong Leung
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Sherborn, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Centrifuge for mechanical draining and thermal drying of sludges
Patent number
6,823,605
Issue date
Nov 30, 2004
Baker Hughes Incorporated
Martin Denuell
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Method for separating a liquid-solid slurry
Patent number
6,514,421
Issue date
Feb 4, 2003
Baker-Hughes, Inc.
Wallace Woon Fong Leung
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Method and apparatus for controlling vertical and horizontal basket...
Patent number
6,328,897
Issue date
Dec 11, 2001
Baker Hughes Incorporated
Wallace Woon-Fong Leung
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Centrifuge with partial wear resistant basket
Patent number
6,267,250
Issue date
Jul 31, 2001
Baker Hughes, Incorporated
Wallace Woon Fong Leung
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for controlling and monitoring continuous feed...
Patent number
6,143,183
Issue date
Nov 7, 2000
Baker Hughes Incorporated
Peter Wardwell
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Centrifuge with partial wear resistant basket
Patent number
6,109,452
Issue date
Aug 29, 2000
Baker Hughes Incorporated
Wallace Woon Fong Leung
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for controlling vertical and horizontal basket...
Patent number
6,063,292
Issue date
May 16, 2000
Baker Hughes Incorporated
Wallace Woon-Fong Leung
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Apparatus for controlling and monitoring a downhole oil/water separ...
Patent number
5,996,690
Issue date
Dec 7, 1999
Baker Hughes Incorporated
Christopher K. Shaw
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Continuous-feed filtering- or screening-type centrifuge with reslur...
Patent number
5,958,235
Issue date
Sep 28, 1999
Baker Hughes Incorporated
Wallace Woon-Fong Leung
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Method and apparatus for controlling and monitoring continuous feed...
Patent number
5,948,271
Issue date
Sep 7, 1999
Baker Hughes Incorporated
Peter Wardwell
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Feed accelerator system including accelerating vane apparatus
Patent number
5,769,776
Issue date
Jun 23, 1998
Baker Hughes Incorporated
Wallace Woon-Fong Leung
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Method and apparatus for well bore construction
Patent number
5,762,149
Issue date
Jun 9, 1998
Baker Hughes Incorporated
Joseph F. Donovan
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Centrifuge for mechanical draining and thermal drying of sludges
Publication number
20040035018
Publication date
Feb 26, 2004
Martin Denuell
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Method for separating a liquid-solid slurry
Publication number
20020030024
Publication date
Mar 14, 2002
Wallace Woon Fong Leung
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL