Inventor
DEVRIES DOUGLAS F
US36 patents
⚠️ This page may combine multiple inventors who share the name “DEVRIES DOUGLAS F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BIRD PRODUCTS CORP
11 patentsUS7849854B2Dec 14, 2010
Portable drag compressor powered mechanical ventilator
BIRD PRODUCTS CORP117 citations98
US6877511B2Apr 12, 2005
Portable drag compressor powered mechanical ventilator
BIRD PRODUCTS CORP235 citations98
US5881722AMar 16, 1999
Portable drag compressor powered mechanical ventilator
BIRD PRODUCTS CORP142 citations98
US5868133AFeb 9, 1999
Portable drag compressor powered mechanical ventilator
BIRD PRODUCTS CORP300 citations98
US5694926ADec 9, 1997
Portable drag compressor powered mechanical ventilator
BIRD PRODUCTS CORP182 citations98
US5494028AFeb 27, 1996
Medical ventilator
BIRD PRODUCTS CORP165 citations96
US5072729ADec 17, 1991
Ventilator exhalation valve
BIRD PRODUCTS CORP117 citations96
US5014694AMay 14, 1991
Ambient pressure air/oxygen blender
BIRD PRODUCTS CORP54 citations96
US4794922AJan 3, 1989
Ventilator manifold
BIRD PRODUCTS CORP87 citations96
US5127400AJul 7, 1992
Ventilator exhalation valve
BIRD PRODUCTS CORP222 citations94
US4993269AFeb 19, 1991
Variable orifice flow sensing apparatus
BIRD PRODUCTS CORP146 citations93
VENTEC LIFE SYSTEMS INC
9 patentsUS10105509B2Oct 23, 2018
Active exhalation valve
VENTEC LIFE SYSTEMS INC24 citations98
US9956371B2May 1, 2018
Ventilator with integrated cough-assist
VENTEC LIFE SYSTEMS INC23 citations98
US10315002B2Jun 11, 2019
Ventilator with integrated oxygen production
VENTEC LIFE SYSTEMS INC25 citations97
US10245406B2Apr 2, 2019
Ventilator with integrated oxygen production
VENTEC LIFE SYSTEMS INC28 citations97
US10046134B2Aug 14, 2018
Pressure swing adsorption oxygen generator
VENTEC LIFE SYSTEMS INC28 citations97
US11291791B2Apr 5, 2022
Ventilator with integrated cough-assist
VENTEC LIFE SYSTEMS INC4 citations84
US10576237B2Mar 3, 2020
Active exhalation valve
VENTEC LIFE SYSTEMS INC6 citations84
US11247015B2Feb 15, 2022
Ventilator with integrated oxygen production
VENTEC LIFE SYSTEMS INC4 citations72
US11992619B2May 28, 2024
Ventilator with integrated cough-assist
VENTEC LIFE SYSTEMS INC0 citations58
DEVRIES DOUGLAS F
7 patentsUS8118024B2Feb 21, 2012
Mechanical ventilation system utilizing bias valve
DEVRIES DOUGLAS F89 citations98
US8627819B2Jan 14, 2014
Portable ventilator system
DEVRIES DOUGLAS F40 citations97
US8522780B2Sep 3, 2013
Portable ventilator system
DEVRIES DOUGLAS F33 citations96
US8297279B2Oct 30, 2012
Portable ventilator system
DEVRIES DOUGLAS F31 citations96
US9126002B2Sep 8, 2015
Mechanical ventilation system utilizing bias valve
DEVRIES DOUGLAS F26 citations92
US8683997B2Apr 1, 2014
Portable ventilator system
DEVRIES DOUGLAS F28 citations92
US8156937B2Apr 17, 2012
Portable ventilator system
DEVRIES DOUGLAS F35 citations92