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Donald J. Douglas
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Vancouver, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Method of operating quadrupoles with added multipole fields to prov...
Patent number
7,709,786
Issue date
May 4, 2010
The University of British Columbia
Nikolai Konenkov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Linear quadrupoles with added hexapole fields and method of buildin...
Patent number
7,541,579
Issue date
Jun 2, 2009
The University of British Columbia
Nikolai Konenkov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High throughput ion source with multiple ion sprayers and ion lenses
Patent number
7,399,961
Issue date
Jul 15, 2008
The University of British Columbia
David D. Y. Chen
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for providing two-dimensional substantially qu...
Patent number
7,141,789
Issue date
Nov 28, 2006
MDS Inc.
Donald J. Douglas
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Atmospheric pressure ion lens for generating a larger and more stab...
Patent number
7,067,804
Issue date
Jun 27, 2006
The University of British Columbia
David D. Y. Chen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Axial ejection with improved geometry for generating a two-dimensio...
Patent number
7,045,797
Issue date
May 16, 2006
The University of British Columbia
Mikhail Sudakov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Geometry for generating a two-dimensional substantially quadrupole...
Patent number
6,897,438
Issue date
May 24, 2005
University of British Columbia
Mikhail Soudakov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for multiple stages of mass spectrometry
Patent number
6,833,544
Issue date
Dec 21, 2004
University of British Columbia
Jennifer Campbell
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Mass spectrometer including multiple mass analysis stages and metho...
Patent number
6,191,417
Issue date
Feb 20, 2001
University of British Columbia
Donald J. Douglas
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for determining the rates of reactions in liqu...
Patent number
6,054,709
Issue date
Apr 25, 2000
The University of British Columbia
Donald J. Douglas
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Method of operating quadrupoles with added multipole fields to prov...
Publication number
20070295900
Publication date
Dec 27, 2007
The University of British Columbia
Nikolai Konenkov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Linear quadrupoles with added hexapole fields and method of buildin...
Publication number
20070272853
Publication date
Nov 29, 2007
The University of British Columbia
Nikolai Konenkov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ion excitation in a linear ion trap with a substantially quadrupole...
Publication number
20060118716
Publication date
Jun 8, 2006
The University of British Columbia
Anthony L. Michaud
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Axial ejection with improved geometry for generating a two-dimensio...
Publication number
20040108456
Publication date
Jun 10, 2004
University of British Columbia
Mikhail Sudakov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Geometry for generating a two-dimensional substantially quadrupole...
Publication number
20040021072
Publication date
Feb 5, 2004
Mikhail Soudakov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Atmospheric pressure ion lens for generating a larger and more stab...
Publication number
20040011953
Publication date
Jan 22, 2004
David D.Y. Chen
H01 - BASIC ELECTRIC ELEMENTS