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For the Inventor, By the Inventor

Mississauga, Canada

Hatch Ltd.


USPTO Granted Patents = 72



Trademarks = 21

Forward Citations = 208

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258 inventors (with patents filed for the assignee):

goldMedal Maciej Urban Jastrzebski (8 out of 8 patents)

silverMedal Bert O Wasmund (8 out of 9 patents)

bronzeMedal Afshin Sadri (7 out of 8 patents)

4.  Kevin S Fraser (7 out of 7 patents)

5.  Terry Gerritsen (6 out of 6 patents)

6.  Robert J Veenstra (6 out of 8 patents)

7.  Sean Southall (6 out of 6 patents)

8.  Murray Scott Pearson (6 out of 6 patents)

9.  John Andrew Ferguson Shaw (5 out of 5 patents)

10.  Nils W Voermann (5 out of 6 patents)

11.  Michael Morgan Campbell (4 out of 4 patents)

12.  Robert John Fraser (4 out of 5 patents)

13.  Kamal Adham (4 out of 4 patents)

14.  Felim Patrick McCaffrey (4 out of 15 patents)

15.  Mohammad Sedighy (4 out of 5 patents)


Core Competencies:
Metal Coating
Crystallization Process
Leakage Current Detection
Ferronickel Alloy Refining
Electric Arc Furnace Control
Magnetic Energy Harvesting
Electrolytic Cells
Metallurgical Furnace Cooling
Metal Recovery from Slag
Micro-Grid Management
Reactor Temperature Control
Sulfur Removal from Gas

72 patents:

1. 12442065 - System and method for coating of continuous sheets of metal (2025-10-14),
2. 12441621 - Treatment process for crystallizing a metal sulfate (2025-10-14),
3. 12145636 - Device, system and method for detecting leakage current for traction power system (2024-11-19),
4. 12054401 - Process and method for producing crystallized metal sulfates (2024-08-06),
5. 11873539 - Ferronickel alloy direct refining processes and processes for producing nickle sulfate or other nickel products (2024-01-16),
6. 11384986 - Open arc condition mitigation based on measurement (2022-07-12),
7. 11146067 - Line control circuit configuration (2021-10-12),
8. 11122654 - Flicker control for electric arc furnace (2021-09-14),
9. 11029092 - Magnetic energy harvesting device and method for electric metallurgical furnaces and similar environments (2021-06-08),
10. 11021942 - Methods of managing solvent inventory in a gravity drainage extraction chamber (2021-06-01),
11. 10995014 - Process for producing crystallized metal sulfates (2021-05-04),
12. 10889906 - Low-profile aluminum cell potshell and method for increasing the production capacity of an aluminum cell potline (2021-01-12),
13. 10855040 - Flexible electrical connectors for electrolytic cells (2020-12-01),
14. 10705196 - Method and apparatus for measuring the length of an electrode in an electric arc furnace (2020-07-07),
15. 10527352 - Wear resistant composite material, its application in cooling elements for a metallurgical furnace, and method of manufacturing same (2020-01-07),
Hatch Ltd. is an engineering organization providing consulting, project management, and operational support services to various industries. With expertise in engineering design, construction, and operation, Hatch delivers innovative solutions that optimize performance and efficiency. Headquartered in Canada, Hatch has been serving clients globally for over 60 years and has established a reputation for excellence in delivering sustainable and value-driven projects.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

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72 Patents

#7 in Mississauga

#158 in Canada

#9,943 in the World

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Mississauga, Canada

Hatch Ltd.

Forward Citations = 208

258 inventors:

goldMedal Maciej Urban Jastrzebski (8 out of 8 patents)

silverMedal Bert O Wasmund (8 out of 9 patents)

bronzeMedal Afshin Sadri (7 out of 8 patents)

4.  Kevin S Fraser (7 out of 7 patents)

5.  Terry Gerritsen (6 out of 6 patents)

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