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Probir K. Chatterjea
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Mount Prospect, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Control system for vehicle transmissions
Patent number
4,871,048
Issue date
Oct 3, 1989
Dresser Industries, Inc.
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Control system for front end loader boom and bucket operating systems
Patent number
4,779,416
Issue date
Oct 25, 1988
Dresser Industries, Inc.
Probir K. Chatterjea
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Pulsation limiter for manually actuated hydraulic valve
Patent number
4,656,924
Issue date
Apr 14, 1987
Dresser Industries, Inc.
Probir K. Chatterjea
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Master clutch pressure and lubrication valve
Patent number
4,644,968
Issue date
Feb 24, 1987
J. I. Case Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Stabilizer for priority flow divider valve
Patent number
4,552,168
Issue date
Nov 12, 1985
J. I. Case Company
Probir K. Chatterjea
G05 - CONTROLLING REGULATING
Information
Patent Grant
Clutch-clutch-brake steering mechanism for tractors
Patent number
4,538,641
Issue date
Sep 3, 1985
Dresser Industries, Inc.
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Pilot valve including a hydraulically actuated detent
Patent number
4,530,376
Issue date
Jul 23, 1985
Dresser Industries, Inc.
Probir K. Chatterjea
G05 - CONTROLLING REGULATING
Information
Patent Grant
Pulsation limiter for manually actuated hydraulic valve
Patent number
4,484,726
Issue date
Nov 27, 1984
Dresser Industries, Inc.
Probir K. Chatterjea
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Clutch-brake steering mechanism for tractors
Patent number
4,467,900
Issue date
Aug 28, 1984
Dresser Industries, Inc.
Daniel B. Shore
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-clutch-brake steering mechanism for tractors
Patent number
4,438,780
Issue date
Mar 27, 1984
Dresser Industries, Inc.
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-clutch brake steering mechanism for tractors
Patent number
4,428,468
Issue date
Jan 31, 1984
Dresser Industries, Inc.
Probir K. Chatterjea
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Clutch-brake steering mechanism for tractors
Patent number
4,407,328
Issue date
Oct 4, 1983
Dresser Industries, Inc.
Daniel B. Shore
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Modulated transmission with modulator-load-piston loading at linear...
Patent number
4,387,731
Issue date
Jun 14, 1983
Dresser Industries, Inc.
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-clutch-brake steering mechanism for tractors
Patent number
4,372,408
Issue date
Feb 8, 1983
International Harvester Co.
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Modulated transmission with converter and modulator-load-piston whi...
Patent number
4,311,068
Issue date
Jan 19, 1982
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-brake steering valve mechanism for tractors
Patent number
4,308,893
Issue date
Jan 5, 1982
International Harvester Company
Daniel B. Shore
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Two-stage concentric hydraulic brake booster
Patent number
4,287,813
Issue date
Sep 8, 1981
International Harvester Company
Probir K. Chatterjea
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Brake control with pilot actuation
Patent number
4,262,969
Issue date
Apr 21, 1981
International Harvester Company
Probir K. Chatterjea
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Transmission clutches with fully-resetting modulator-load-piston
Patent number
4,216,851
Issue date
Aug 12, 1980
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-brake steering mechanism for tractors
Patent number
4,164,276
Issue date
Aug 14, 1979
International Harvester Company
Daniel B. Shore
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Hydrostatic transmission control with hydraulic follow-up
Patent number
4,139,985
Issue date
Feb 20, 1979
International Harvester Company
Charles A. L. Ruhl
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Brake operated transmission clutches with fully-resetting modulator...
Patent number
4,135,610
Issue date
Jan 23, 1979
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Transmission clutches with fully-resetting modulator-load-piston
Patent number
4,132,302
Issue date
Jan 2, 1979
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch cylinder circuit and charging valve therefor
Patent number
4,069,843
Issue date
Jan 24, 1978
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Clutch-brake steering mechanism for tractors
Patent number
4,015,619
Issue date
Apr 5, 1977
International Harvester Company
Daniel B. Shore
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Clutch cylinder circuit and charging valve therefor
Patent number
3,964,372
Issue date
Jun 22, 1976
International Harvester Company
Probir K. Chatterjea
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...