Inventor
SIMPSON DAVID A
US21 patents
⚠️ This page may combine multiple inventors who share the name “SIMPSON DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WATERS TECHNOLOGIES CORP
8 patentsUS11162923B2Nov 2, 2021
Twist lock compliant needle for detection of contact
WATERS TECHNOLOGIES CORP0 citations60
US11913916B2Feb 27, 2024
Needle drive, system and method
WATERS TECHNOLOGIES CORP1 citations59
US11879875B2Jan 23, 2024
Sample manager, system and method
WATERS TECHNOLOGIES CORP1 citations59
US11774415B2Oct 3, 2023
Metering pump for liquid chromatography
WATERS TECHNOLOGIES CORP0 citations57
US11835496B2Dec 5, 2023
Sample metering and injection for liquid chromatography
WATERS TECHNOLOGIES CORP0 citations49
US11002713B2May 11, 2021
Sample organizer, tray, system and method
WATERS TECHNOLOGIES CORP0 citations49
US12121891B2Oct 22, 2024
Dual delivery needle wash system
WATERS TECHNOLOGIES CORP0 citations46
US11555804B2Jan 17, 2023
Liquid chromatography thermal system with thermal status detection
WATERS TECHNOLOGIES CORP0 citations37
OSEL INC
4 patentsUS7179458B2Feb 20, 2007
Lactobacilli expressing biologically active polypeptides and uses thereof
OSEL INC17 citations90
US7312076B2Dec 25, 2007
Lactobacilli expressing biologically active polypeptides and uses thereof
OSEL INC5 citations71
US7833791B2Nov 16, 2010
Lactobacilli expressing biologically active polypeptides and uses thereof
OSEL INC3 citations60
US7456011B2Nov 25, 2008
Modified cyanovirin-n polypeptide
OSEL INC5 citations57
HERCULES INC
3 patentsSIMPSON DAVID A
3 patentsUS8302695B2Nov 6, 2012
Downhole systems and methods for deliquifaction of a wellbore
SIMPSON DAVID A5 citations51
US8597402B2Dec 3, 2013
Device for capturing gas from a produced water stream
SIMPSON DAVID A0 citations39
US8439999B2May 14, 2013
Device for capturing gas from a produced water stream
SIMPSON DAVID A0 citations39