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For the Inventor, By the Inventor

St. John's, Canada

Instrumar Limited


USPTO Granted Patents = 8



Forward Citations = 34

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18 inventors (with patents filed for the assignee):

goldMedal Stuart Louis Inkpen (8 out of 10 patents)

silverMedal Chris Nolan (7 out of 7 patents)

bronzeMedal Dana Charles Linfield (7 out of 8 patents)

4.  Joshua Swamidas (6 out of 7 patents)

5.  Ruth Abraham (5 out of 6 patents)

6.  Bill Conway (4 out of 5 patents)

7.  David Bonnell (4 out of 4 patents)

8.  John Charles Hall (4 out of 4 patents)

9.  Darryl Pike (2 out of 2 patents)

10.  Heather Rowe (2 out of 2 patents)

11.  Chris Dawson (2 out of 2 patents)

12.  Gerard Galway (2 out of 2 patents)

13.  Shawn Walsh (2 out of 2 patents)

14.  Christopher David Nolan (1 out of 1 patent)

15.  Heather Lynn Spearns (1 out of 1 patent)


8 patents:

1. 11772801 - Electric field sensor with sensitivity-attenuating ground ring (2023-10-03),
2. 10940952 - Apparatus and method of monitoring for in-flight aircraft engine ice crystal accretion (2021-03-09),
3. 10732065 - Apparatus and method of detecting breaches in pipelines (2020-08-04),
4. 9527595 - Apparatus and method of monitoring for matter accumulation on an aircraft surface (2016-12-27),
5. 8669757 - Fibre monitoring apparatus and method (2014-03-11),
6. 7983785 - Fibre monitoring apparatus and method (2011-07-19),
7. 6025727 - Device and method for detecting and measuring fiber properties (2000-02-15),
8. 5394340 - Device and method for identifying and quantifying layered substances (1995-02-28),
Company Overview
Instrumar Limited is a leading provider of advanced measurement and control solutions for industrial processes. With over 20 years of experience, we offer a wide range of products including pressure transmitters, level sensors, flow meters, and temperature controllers. Our innovative technologies and expert team ensure reliable and accurate solutions for a variety of industries such as oil and gas, power generation, and water treatment. Visit our website for more information and to explore our comprehensive product portfolio.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#3 in

#1,878 in

St. John's, CA
St. John's, Canada

Instrumar Limited

Forward Citations = 34

18 inventors:

goldMedal Stuart Louis Inkpen (8 out of 10 patents)

silverMedal Chris Nolan (7 out of 7 patents)

bronzeMedal Dana Charles Linfield (7 out of 8 patents)

4.  Joshua Swamidas (6 out of 7 patents)

5.  Ruth Abraham (5 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Instrumar Limited. Retrieved from https://idiyas.com/company/instrumar

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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