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Douglas Adam Whitcher
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Atlanta, GA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Proportional oxygen conserving device with flow sensing
Patent number
10,583,265
Issue date
Mar 10, 2020
Koninklijke Philips N.V.
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
System and method for liquefying a fluid and storing the liquefied...
Patent number
9,841,228
Issue date
Dec 12, 2017
Koninklijke Philips N.V.
Brian Edward Dickerson
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Portable oxygen concentrator with integrated manifold
Patent number
9,321,001
Issue date
Apr 26, 2016
Koninklijke Philips N.V.
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
System and method for oxygen therapy
Patent number
9,186,476
Issue date
Nov 17, 2015
RIC Investments, LLC
Douglas Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Portable liquid oxygen storage unit
Patent number
8,468,839
Issue date
Jun 25, 2013
RIC Investments, LLC
Douglas Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Portable liquid oxygen delivery system
Patent number
8,256,415
Issue date
Sep 4, 2012
RIC Investments, LLC
Roy A. Hughes
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Portable liquid oxygen delivery system
Patent number
7,721,733
Issue date
May 25, 2010
RIC Investments, LLC
Roy A. Hughes
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Liquid oxygen connector
Patent number
D568997
Issue date
May 13, 2008
RIC Investments, LLC
Joseph T. Dolensky
D24 - Medical and laboratory equipment
Information
Patent Grant
Liquid oxygen connector
Patent number
D568998
Issue date
May 13, 2008
RIC Investments, LLC
Joseph T. Dolensky
D24 - Medical and laboratory equipment
Patents Applications
last 30 patents
Information
Patent Application
SUSPENSION SYSTEM, COMPRESSOR ASSEMBLY AND PORTABLE OXYGEN CONCENTR...
Publication number
20230054192
Publication date
Feb 23, 2023
Koninklijke Philips N.V.
Johannes Willem Tack
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
PORTABLE OXYGEN CONCENTRATOR SIEVE BED
Publication number
20180369741
Publication date
Dec 27, 2018
Koninklijke Philips N.V.
DOUGLAS ADAM WHITCHER
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR LIQUEFYING A FLUID AND STORING THE LIQUEFIED...
Publication number
20160003525
Publication date
Jan 7, 2016
Koninklijke Philips N.V.
BRIAN EDWARD DICKERSON
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
PORTABLE OXYGEN CONCENTRATOR
Publication number
20140345609
Publication date
Nov 27, 2014
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROPORTIONAL OXYGEN CONSERVING DEVICE WIHT FLOW SENSING
Publication number
20140224246
Publication date
Aug 14, 2014
Koninklijke Philips N.V.
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PORTABLE OXYGEN CONCENTRATOR WITH INTEGRATED MANIFOLD
Publication number
20140224126
Publication date
Aug 14, 2014
Koninklijke Philips N.V.
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
OXYGEN CONCENTRATOR SUPPLY LINE OBERPRESSURE PROTECTION
Publication number
20140216453
Publication date
Aug 7, 2014
Koninklijke Philips N.V.
Douglas Adam Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
SYTEM AND METHOD FOR LIQUEFYING A FLUID AND STORING THE LIQUEFIED F...
Publication number
20120180899
Publication date
Jul 19, 2012
Brian Edward Dickerson
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
System and method for oxygen therapy
Publication number
20080178881
Publication date
Jul 31, 2008
RIC Investments, LLC
Douglas Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Portable Liquid Oxygen Storage Unit
Publication number
20080178610
Publication date
Jul 31, 2008
Douglas Whitcher
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE