Schell; David A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Schell; David A..The latest application filed is for "traveling wave multipole".

Company Profile

10.4.1

Schell; David A. - Round Rock TX
- unknown
Schell; David A. - Durham NC

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Traveling wave multipole Grant 11,087,968 - Schell , et al. August 10, 2	2021-08-10
Liquid chromatography system, method and use Grant 10948463 -	2021-03-16
Flow control in an electrolytic reagent concentrator for ion chromatography Grant 10948466 -	2021-03-16
Adjustable dwell time for SRM acquisition Grant 10892152 -	2021-01-12
Method of calibrating a chromatography system Grant 10802000 -	2020-10-13
Device for controlling a piston pump unit for liquid chromatography Grant 10801479 -	2020-10-13
Traveling Wave Multipole App 20200194249 - SCHELL; David A. ; et al.	2020-06-18
Replaceable emitter assembly for interfacing a separation column to a mass spectrometer Grant 10627375 -	2020-04-21
Methods for determining instrument linearity and quantification Grant 10598641 -	2020-03-24
Mass calibration device for a mass spectrometer Grant 10600626 -	2020-03-24
Pre-assembled separation columns Grant 10564137 -	2020-02-18
Method and apparatus for learning computer interface attributes Grant 7,191,407 - Kluttz , et al. March 13, 2	2007-03-13
Visually oriented, easily navigable search facility Grant 6,272,489 - Rauch , et al. August 7, 2	2001-08-07
Method for displaying information in a virtual reality environment Grant 6,025,839 - Schell , et al. February 15, 2	2000-02-15

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