Inventor

Douglas R. Powell

Inventor

Centennial, CO, US

Overview

2→

Patents

2002–2008

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Mprimary

A61MDevices for introducing media into, or onto, the body25%

F17CVessels for containing or storing compressed, liquefied or solidified gases25%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state25%

G01TMeasurement of nuclear or x-radiation25%

PatentTitleYear

7,318,327'Liquefying and storing a gas'2008 6,452,164'Apparatus and method for calibrating gamma cameras'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to GEN ELECTRIC (1)· patent assignee history

2002Based in Burlington, WI, US· patent location history

2008Patents assigned to RESPIRONICS IN X INC (1)· patent assignee history

2008Based in Centennial, CO, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN ELECTRIC	1	2002
RESPIRONICS IN X INC	1	2008

Locations

Location	Patents	Span
Centennial, CO, US	1	2008
Burlington, WI, US	1	2002