Inventor

WELKIE DAVID G

US35 patents

⚠️ This page may combine multiple inventors who share the name “WELKIE DAVID G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WELKIE DAVID G

PERKINELMER HEALTH SCI INC

Mass spectrometry with segmented RF multiple ion guides in various pressure regions

RF surfaces and RF ion guides

Multiple detection systems

RF ion guide with axial fields

RF ion guide with axial fields

Dynamic electron impact ion source

RF ion guide with axial fields

RF ion guide with axial fields

Dynamic electron impact ion source

Multipole ion guide interface for reduced background noise in mass spectrometry

Fragmentation methods for mass spectrometry

Fragmentation methods for mass spectrometry

Orthogonal acceleration system for time-of-flight mass spectrometer

Orthogonal acceleration system for time-of-flight mass spectrometer

Orthogonal acceleration system for time-of-flight mass spectrometer

Ion transfer from electron ionization sources

Orthogonal acceleration TOF with ion guide mode

Finite differences methods

ANALYTICA OF BRANFORD INC

Mass spectrometry with segmented RF multiple ion guides in various pressure regions

RF surfaces and RF ion guides

Fragmentation methods for mass spectrometry

Charged particle trapping in near-surface potential wells

Fragmentation methods for mass spectrometry

Apparatus and methods for reduction of coherent noise in a digital signal averager

Charged particle trapping in near-surface potential wells

Apparatus and methods for reduction of coherent noise in a digital signal averager

PERKIN ELMER CORP

Ion source and accelerator for improved dynamic range and mass selection in a time of flight mass spectrometer

Vacuum-compatible air-cooled plasma device

Carrier gas separator for mass spectroscopy

Primary ion beam raster gating technique for secondary ion mass spectrometer system

WHITEHOUSE CRAIG M

Fragmentation methods for mass spectrometry

Multipole ion guide interface for reduced background noise in mass spectrometry

ANALYTICA OF BRANDFORD INC

Multiple detection systems

PERKINELMER INSTRUMENTS LLC

Ion detector, detector array and instrument using same

WELKIE DAVID G

Electrostatic lenses and systems including the same