P

Inventor

WHITCHER DOUGLAS

US6 patents
⚠️ This page may combine multiple inventors who share the name “WHITCHER DOUGLAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RIC INVESTMENTS LLC

3 patents
US7721733B2May 25, 2010

Portable liquid oxygen delivery system

RIC INVESTMENTS LLC36 citations86
USD568998SMay 13, 2008

Liquid oxygen connector

RIC INVESTMENTS LLC2 citations60
USD568997SMay 13, 2008

Liquid oxygen connector

RIC INVESTMENTS LLC0 citations49

WHITCHER DOUGLAS

2 patents
US8468839B2Jun 25, 2013

Portable liquid oxygen storage unit

WHITCHER DOUGLAS2 citations56
US9186476B2Nov 17, 2015

System and method for oxygen therapy

WHITCHER DOUGLAS0 citations33

HUGHES ROY A

1 patent
US8256415B2Sep 4, 2012

Portable liquid oxygen delivery system

HUGHES ROY A1 citations37