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with ionisation by means of radioactive substances
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CPC
H01J41/08
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H
ELECTRICITY
H01
Electric elements
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J41/00
Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas Discharge tubes for evacuation by diffusion of ions
Current Industry
H01J41/08
with ionisation by means of radioactive substances
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Patents Grants
last 30 patents
Information
Patent Grant
Charged particle beam apparatus
Patent number
7,582,885
Issue date
Sep 1, 2009
Hitachi High-Technologies Corp.
Souichi Katagiri
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Glow discharge starter having dual gaps
Patent number
5,057,741
Issue date
Oct 15, 1991
GTE Products Corporation
Nikolaos Barakitis
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Pressure sensor and leak detector
Patent number
4,450,409
Issue date
May 22, 1984
Honeywell Inc.
B. Wayne Castleman
G01 - MEASURING TESTING
Information
Patent Grant
Smoke detector apparatus and ionization chamber therefor
Patent number
4,167,687
Issue date
Sep 11, 1979
Unitec, Inc.
Douglas E. Furney
G08 - SIGNALLING
Information
Patent Grant
Double chamber ionization smoke detector
Patent number
4,153,840
Issue date
May 8, 1979
Horst K. Wieder
G08 - SIGNALLING
Information
Patent Grant
Reliable dynamoelectric machine condition monitor
Patent number
4,121,458
Issue date
Oct 24, 1978
Westinghouse Electric Corp.
Emil M. Fort
G01 - MEASURING TESTING
Information
Patent Grant
Ionization detector
Patent number
4,121,105
Issue date
Oct 17, 1978
The Gamewell Corporation
Elias E. Solomon
G08 - SIGNALLING
Information
Patent Grant
Ionization detectors
Patent number
4,051,376
Issue date
Sep 27, 1977
The Radiochemical Centre Ltd.
Edgar Adolf Lorch
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ionization detector
Patent number
4,021,671
Issue date
May 3, 1977
Gulf & Western Manufacturing Company (Systems)
Elias E. Solomon
G08 - SIGNALLING
Information
Patent Grant
Multi-element ionization chamber
Patent number
4,012,729
Issue date
Mar 15, 1977
Statitrol Corporation
Stephen Weaver
G08 - SIGNALLING
Information
Patent Grant
Ionization detector with improved radiation source
Patent number
4,007,374
Issue date
Feb 8, 1977
Gulf & Western Manufacturing Company (Systems)
Elias F. Solomon
G08 - SIGNALLING
Information
Patent Grant
Rate-of-change combustion and contamination detection device
Patent number
3,946,374
Issue date
Mar 23, 1976
SCI Systems, Inc.
Lonnie S. McMillian
G08 - SIGNALLING
Information
Patent Grant
3870888
Patent number
3,870,888
Issue date
Mar 11, 1975
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
3849685
Patent number
3,849,685
Issue date
Nov 19, 1974
G08 - SIGNALLING
Information
Patent Grant
3835328
Patent number
3,835,328
Issue date
Sep 10, 1974
G01 - MEASURING TESTING
Information
Patent Grant
3832552
Patent number
3,832,552
Issue date
Aug 27, 1974
G08 - SIGNALLING
Information
Patent Grant
3828184
Patent number
3,828,184
Issue date
Aug 6, 1974
G01 - MEASURING TESTING
Information
Patent Grant
3798625
Patent number
3,798,625
Issue date
Mar 19, 1974
G08 - SIGNALLING
Information
Patent Grant
3792254
Patent number
3,792,254
Issue date
Feb 12, 1974
G08 - SIGNALLING
Information
Patent Grant
3735138
Patent number
3,735,138
Issue date
May 22, 1973
G08 - SIGNALLING
Information
Patent Grant
3706938
Patent number
3,706,938
Issue date
Dec 19, 1972
G01 - MEASURING TESTING
Information
Patent Grant
3601609
Patent number
3,601,609
Issue date
Aug 24, 1971
G01 - MEASURING TESTING
Information
Patent Grant
3573460
Patent number
3,573,460
Issue date
Apr 6, 1971
G08 - SIGNALLING
Information
Patent Grant
3478205
Patent number
3,478,205
Issue date
Nov 11, 1969
G01 - MEASURING TESTING
Information
Patent Grant
3448261
Patent number
3,448,261
Issue date
Jun 3, 1969
G08 - SIGNALLING
Information
Patent Grant
3446958
Patent number
3,446,958
Issue date
May 27, 1969
G01 - MEASURING TESTING
Information
Patent Grant
3292078
Patent number
3,292,078
Issue date
Dec 13, 1966
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
3271661
Patent number
3,271,661
Issue date
Sep 6, 1966
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
3255348
Patent number
3,255,348
Issue date
Jun 7, 1966
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
3233100
Patent number
3,233,100
Issue date
Feb 1, 1966
G08 - SIGNALLING
Patents Applications
last 30 patents
Information
Patent Application
Charged particle beam apparatus
Publication number
20060231773
Publication date
Oct 19, 2006
Souichi Katagiri
H01 - BASIC ELECTRIC ELEMENTS