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North York, Canada

Thornhill Scientific Inc.

USPTO Granted Patents = 20

% Expired Patents = 15.0

CIPO Patents = 3

EPO Patents = 8

Forward Citations = 10

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30 inventors (with patents filed for the assignee):

Joseph A Fisher (13 out of 38 patents)

James Duffin (12 out of 12 patents)

Olivia Sobczyk (10 out of 10 patents)

4. David J Mikulis (9 out of 9 patents)

5. Michael Klein (8 out of 9 patents)

6. Julien Poublanc (6 out of 6 patents)

7. Ece Su Sayin (5 out of 5 patents)

8. Daniel Michael Mandell (4 out of 4 patents)

9. Joseph Arnold Fisher (4 out of 4 patents)

10. Marat Slessarev (3 out of 3 patents)

11. Adrian P Crawley (3 out of 3 patents)

12. Kevin Sam (3 out of 3 patents)

13. David Preiss (2 out of 4 patents)

14. Alex Vesely (2 out of 8 patents)

15. Eitan Prisman (2 out of 4 patents)

20 patents: Sort by Forward Citations

1. 12733810 - Dynamic susceptibility contrast using a pre-determined arterial input function (2026-09-15),

2. 12614292 - Imaging abnormalities in vascular response (2026-04-28),

3. 12446803 - Method and system of measuring brain oxygenation using deoxyhemoglobin contrast (2025-10-21),

4. 12440118 - System and method for determining arterial input function based on susceptibility contrast in the choroid plexus (2025-10-14),

5. 12419531 - Implementing a periodic deoxyhemoglobin signal (2025-09-23),

6. 12336783 - Identifying the vascularity of cerebral tissue in subjects using deoxyhemoglobin contrast (2025-06-24),

7. 11998351 - Testing for neurovascular uncoupling in multiple sclerosis using sequential gas delivery versus fixed inspired CO (2024-06-04),

8. 11880989 - Imaging abnormalities in vascular response (2024-01-23),

9. 11844899 - Virtual respiratory gas delivery systems and circuits (2023-12-19),

10. 11464934 - Gas delivery method and apparatus (2022-10-11),

11. 11464414 - Non-invasive cardiac output determination (2022-10-11),

12. 11179044 - Method of measuring cardiac related parameters non-invasively via the lung during spontaneous and controlled ventilation (2021-11-23),

13. 11077266 - Method and apparatus to attain and maintain target arterial blood gas concentrations using ramp sequences (2021-08-03),

14. 10974001 - Virtual respiratory gas delivery systems and circuits (2021-04-13),

15. 10850052 - Apparatus to attain and maintain target end tidal partial pressure of a gas (2020-12-01),

Thornhill Scientific Inc. is a North York-based company specializing in advanced scientific instrumentation and analytical solutions. The organization focuses on developing innovative technologies for various applications, including environmental monitoring, materials analysis, and life sciences research. With a commitment to enhancing research capabilities, Thornhill Scientific provides high-quality products that cater to the needs of scientists and researchers across multiple disciplines, ensuring precision and reliability in their work.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

20 Patents

#5 in North York

#725 in Canada

#31,233 in the World

North York, Canada

Thornhill Scientific Inc.

Forward Citations = 10

30 inventors:

Joseph A Fisher (13 out of 38 patents)

James Duffin (12 out of 12 patents)

Olivia Sobczyk (10 out of 10 patents)

4. David J Mikulis (9 out of 9 patents)

5. Michael Klein (8 out of 9 patents)

Please report any incorrect information to [email protected]

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