DW

David G. Welkie

PS Perkinelmer Health Sciences: 21 patents #4 of 237Top 2%
AB Analytica Of Branford: 9 patents #5 of 27Top 20%
PE Perkinelmer: 4 patents #63 of 671Top 10%
PI Perkinelmer Instruments: 1 patents #16 of 36Top 45%
📍 Trumbull, CT: #18 of 533 inventorsTop 4%
🗺 Connecticut: #885 of 34,797 inventorsTop 3%
Overall (All Time): #98,041 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDate
11276544 Dynamic electron impact ion source Tong Chen 2022-03-15
10879030 Dynamic electron impact ion source Tong Chen 2020-12-29
10796893 RF ion guide with axial fields 2020-10-06
10692712 Ion transfer from electron ionization sources Tong Chen 2020-06-23
10453666 RF ion guide with axial fields 2019-10-22
10032617 RF ion guide with axial fields 2018-07-24
9613788 RF ion guide with axial fields 2017-04-04
9576782 Orthogonal acceleration system for time-of-flight mass spectrometer 2017-02-21
9177777 Orthogonal acceleration system for time-of-flight mass spectrometer 2015-11-03
9129790 Orthogonal acceleration TOF with ion guide mode 2015-09-08
8981290 Fragmentation methods for mass spectrometry Craig M. Whitehouse, Gholamreza Javahery, Lisa Cousins, Sergey Rakov 2015-03-17
8975580 Orthogonal acceleration system for time-of-flight mass spectrometer 2015-03-10
8921803 Electrostatic lenses and systems including the same 2014-12-30
8723107 Multipole ion guide interface for reduced background noise in mass spectrometry Craig M. Whitehouse 2014-05-13
8686356 Fragmentation methods for mass spectrometry Craig M. Whitehouse, Gholamreza Javahery, Lisa Cousins, Sergey Rakov 2014-04-01
8507850 Multipole ion guide interface for reduced background noise in mass spectrometry Craig M. Whitehouse 2013-08-13
8380775 Finite differences methods 2013-02-19
8334507 Fragmentation methods for mass spectrometry Craig M. Whitehouse, Gholamreza Javahery, Lisa Cousins, Sergey Rakov 2012-12-18
7928361 Multiple detection systems Craig M. Whitehouse 2011-04-19
7858926 Mass spectrometry with segmented RF multiple ion guides in various pressure regions Craig M. Whitehouse, Gholamreza Javahery, Lisa Cousins 2010-12-28
7786435 RF surfaces and RF ion guides Craig M. Whitehouse, Lisa Cousins 2010-08-31
7365317 RF surfaces and RF ion guides Craig M. Whitehouse, Lisa Cousins 2008-04-29
7321847 Apparatus and methods for reduction of coherent noise in a digital signal averager Craig M. Whitehouse 2008-01-22
7265346 Multiple detection systems Craig M. Whitehouse 2007-09-04
7049584 Fragmentation methods for mass spectrometry Craig M. Whitehouse, Gholamreza Javahery, Lisa Cousins, Sergey Rakov 2006-05-23