Donald J. Douglas

Person

Toronto, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for plasma mass analysis with reduced space ch...
- Patent number 5,565,679
- Issue date Oct 15, 1996
- MDS Health Group Limited
- Scott D. Tanner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of plasma mass analysis with reduced space charge effects
- Patent number 5,381,008
- Issue date Jan 10, 1995
- MDS Health Group Ltd.
- Scott D. Tanner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for increased resolution in tandem mass spectrometry
- Patent number 5,248,875
- Issue date Sep 28, 1993
- MDS Health Group Limited
- Donald Douglas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multipole inlet system for ion traps
- Patent number 5,179,278
- Issue date Jan 12, 1993
- MDS Health Group Limited
- Donald J. Douglas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Mass spectrometer and method and improved ion transmission
- Patent number 4,963,736
- Issue date Oct 16, 1990
- MDS Health Group Limited
- Donald J. Douglas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Mass analyzer system with reduced drift
- Patent number 4,746,794
- Issue date May 24, 1988
- MDS Health Group Limited
- John B. French
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus having RF biasing for sampling a plasma into a...
- Patent number 4,682,026
- Issue date Jul 21, 1987
- MDS Health Group Limited
- Donald J. Douglas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for sampling a plasma into a vacuum chamber
- Patent number 4,501,965
- Issue date Feb 26, 1985
- MDS Health Group Limited
- Donald J. Douglas
- H01 - BASIC ELECTRIC ELEMENTS

Donald J. Douglas

Person

Patents Grantslast 30 patents

Method and apparatus for plasma mass analysis with reduced space ch...

Method of plasma mass analysis with reduced space charge effects

Method for increased resolution in tandem mass spectrometry

Multipole inlet system for ion traps

Mass spectrometer and method and improved ion transmission

Mass analyzer system with reduced drift

Method and apparatus having RF biasing for sampling a plasma into a...

Method and apparatus for sampling a plasma into a vacuum chamber