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GRANVILLE-PHILLIPS COMPANY
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BOULDER, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Miniature ionization gauge utilizing multiple ion collectors
Patent number
6,025,723
Issue date
Feb 15, 2000
Granville-Phillips Company
Daniel Granville Bills
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Force balancing capacitance manometer
Patent number
5,902,932
Issue date
May 11, 1999
Granville-Phillips Company
Daniel Granville Bills
G01 - MEASURING TESTING
Information
Patent Grant
Ionization gauge and method of using and calibrating same
Patent number
5,801,535
Issue date
Sep 1, 1998
Granville-Phillips Company
Daniel Granville Bills
G01 - MEASURING TESTING
Information
Patent Grant
Wide range vacuum gauge
Patent number
5,452,613
Issue date
Sep 26, 1995
Granville-Phillips Company
Daniel G. Bills
G01 - MEASURING TESTING
Information
Patent Grant
Ionization gauge and method of using and calibrating same
Patent number
5,422,573
Issue date
Jun 6, 1995
Granville-Phillips Company
Daniel G. Bills
G01 - MEASURING TESTING
Information
Patent Grant
Ionization gauge and method of using and calibrating same
Patent number
5,296,817
Issue date
Mar 22, 1994
Granville-Phillips Company
Daniel G. Bills
G01 - MEASURING TESTING
Information
Patent Grant
Ionization gauge and method of using and calibrating same
Patent number
5,250,906
Issue date
Oct 5, 1993
Granville-Phillips Company
Daniel G. Bills
G01 - MEASURING TESTING
Information
Patent Grant
Ionization vacuum gauge with emission of electrons in parallel paths
Patent number
5,128,617
Issue date
Jul 7, 1992
Granville-Phillips Company
Daniel G. Bills
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Temperature compensation for pressure gauge
Patent number
4,866,640
Issue date
Sep 12, 1989
Granville-Phillips Company
Charles F. Morrison Jr.
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for improving the safety and extending the ran...
Patent number
4,714,891
Issue date
Dec 22, 1987
Granville-Phillips Company
Charles F. Morrison
G01 - MEASURING TESTING
Information
Patent Grant
Vacuum gauge
Patent number
4,636,680
Issue date
Jan 13, 1987
Granville-Phillips Company
Daniel G. Bills
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum gauge
Patent number
4,307,323
Issue date
Dec 22, 1981
Granville-Phillips Company
Daniel G. Bills
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75334856 - CONDUCTRON
Serial number
75334856
Registration number
2534391
Filing date
Aug 4, 1997
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75334855 - MICRO-ION
Serial number
75334855
Registration number
2293275
Filing date
Aug 4, 1997
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74558972 - CONVECTRON
Serial number
74558972
Registration number
1954345
Filing date
Aug 9, 1994
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74326727 - STABIL-1
Serial number
74326727
Registration number
1838385
Filing date
Oct 30, 1992
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74250891 - STABIL-ION
Serial number
74250891
Registration number
1838365
Filing date
Mar 2, 1992
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73532133 - GP
Serial number
73532133
Registration number
1363117
Filing date
Apr 15, 1985
GRANVILLE-PHILLIPS COMPANY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72335014 - ELECTRO ION
Serial number
72335014
Registration number
920138
Filing date
Aug 11, 1969
GRANVILLE-PHILLIPS COMPANY
7 - Machines and machine tools
Information
Trademark
72179897 - GP
Serial number
72179897
Registration number
785048
Filing date
Oct 28, 1963
GRANVILLE-PHILLIPS COMPANY
6 - Common metals and their alloys