Inventor profile of:

James Duffin

City:

Toronto

Country:

Canada

Published Applications:

31

Last publication date:

2026-02-19

Top Assignees for applications by James Duffin

The entities that hold a legal rights for patent applications filed by inventor Duffin James:

Recent patent applications by Duffin James

James Duffin from Toronto, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2026-02-19
US20260048225A1
Human necessities

PROVIDING INTERMITTENT HYPOXIA WITH SEQUENTIAL GAS DELIVERY

#2 | 2026-01-29
US20260026702A1
Human necessities

METHOD FOR MEASURING CEREBRAL VASCULAR REACTIVITY USING HYPOXIA AS VASOACTIVE AGENT

#3 | 2026-01-15
US20260013748A1
Human necessities

IMPLEMENTING A PERIODIC DEOXYHEMOGLOBIN SIGNAL

#4 | 2025-10-16
US20250318745A1
Human necessities

SYSTEM AND METHOD FOR DIRECT QUANTIFICATION OF PERFUSION METRICS USING A STEPWISE CHANGE IN DEOXYHEMOGLOBIN

#5 | 2025-05-22
US20250160645A1
Human necessities

DYNAMIC SUSCEPTIBILITY CONTRAST USING A PRE-DETERMINED ARTERIAL INPUT FUNCTION

#6 | 2025-02-06
US20250040840A1
Human necessities

METHOD AND SYSTEM OF MEASURING BRAIN OXYGENATION USING DEOXYHEMOGLOBIN CONTRAST

#7 | 2024-11-28
US20240389856A1
Human necessities

IDENTIFYING THE VASCULARITY OF CEREBRAL TISSUE IN SUBJECTS USING DEOXYHEMOGLOBIN CONTRAST

#8 | 2024-10-31
US20240358946A1
Human necessities

CONTROLLING THE CONCENTRATION OF DEOXYHEMOGLOBIN IN A SUBJECT

#9 | 2024-10-10
US20240335128A1
Human necessities

IMPLEMENTING A PERIODIC DEOXYHEMOGLOBIN SIGNAL

#10 | 2024-08-29
US20240285196A1
Human necessities

A METHOD AND SYSTEM FOR DETERMINING A PERFUSION METRIC USING DEOXYHEMOGLOBIN AS A CONTRAST AGENT

#11 | 2024-04-25
US20240135558A1
Physics

IMAGING ABNORMALITIES IN VASCULAR RESPONSE

#12 | 2023-08-31
US20230270348A1
Human necessities

SYSTEM AND METHOD FOR DETERMINING ARTERIAL INPUT FUNCTION BASED ON SUSCEPTIBILITY CONTRAST IN THE CHOROID PLEXUS

#13 | 2023-02-23
US20230056088A1
Physics

DEOXYHEMOGLOBIN IN MAGNETIC RESONANCE IMAGING

#14 | 2023-01-05
US20230000389A1
Human necessities

MEASUREMENT OF ALVEOLAR DEAD SPACE USING SEQUENTIAL GAS DELIVERY

#15 | 2022-01-20
US20220016368A1
Human necessities

METHOD AND APPARATUS TO ATTAIN AND MAINTAIN TARGET ARTERIAL BLOOD GAS CONCENTRATIONS USING RAMP SEQUENCES

#16 | 2021-02-25
US20210052220A1
Human necessities

Testing for neurovascular uncoupling in multiple sclerosis using sequential gas delivery versus fixed inspired CO

#17 | 2020-03-05
US20200069194A1
Human necessities

Non-invasive cardiac output determination

#18 | 2018-12-13
US20180353083A1
Human necessities

NON-INVASIVE CARDIAC OUTPUT DETERMINATION

#19 | 2018-12-06
US20180344967A1
Human necessities

ANESTHETIC DELIVERY SYSTEM

#20 | 2018-11-01
US20180311454A1
Human necessities

Method and apparatus to attain and maintain target arterial blood gas concentrations using ramp sequences

#21 | 2017-12-21
US20170361042A1
Human necessities

Apparatus to attain and maintain target end tidal partial pressure of a gas

#22 | 2017-08-17
US20170236294A1
Physics

Imaging abnormalities in vascular response

#23 | 2017-08-17
US20170232223A1
Human necessities

NON-INVASIVE ARTERIAL BLOOD GAS DETERMINATION

#24 | 2017-08-10
US20170224230A1
Human necessities

NON-INVASIVE CARDIAC OUTPUT DETERMINATION

#25 | 2016-08-04
US20160220115A1
Human necessities

Imaging reductions in cerebrovascular reactivity

#26 | 2015-04-30
US20150114394A1
Human necessities

METHOD AND APPARATUS TO ATTAIN AND MAINTAIN TARGET ARTERIAL BLOOD GAS CONCENTRATIONS USING RAMP SEQUENCES

#27 | 2015-03-05
US20150059744A1
Human necessities

ANESTHETIC DELIVERY SYSTEM

#28 | 2014-10-23
US20140311491A1
Human necessities

APPARATUS TO ATTAIN AND MAINTAIN TARGET END TIDAL PARTIAL PRESSURE OF A GAS

#29 | 2013-05-02
US20130109978A1
Human necessities

NON-INVASIVE CARDIAC OUTPUT DETERMINATION

#30 | 2012-08-23
US20120215124A1
Human necessities

NON-INVASIVE ARTERIAL BLOOD GAS DETERMINATION

#31 | 2011-06-16
US20110144516A1
Human necessities

RELATIVE CONTRIBUTION OF THORACIC MUSCLES TO BREATHING

InventorID:

224996 ⎘