For the Inventor, By the Inventor

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Vancouver, Canada

Chemetics Inc.

USPTO Granted Patents = 13

% Expired Patents = 15.4

CIPO Patents = 1

EPO Patents = 15

Trademarks = 3

Forward Citations = 13

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25 inventors (with patents filed for the assignee):

Amit Shah (3 out of 3 patents)

Thomas S Drackett (3 out of 7 patents)

Graham Lyne (2 out of 2 patents)

4. Rene Dijkstra (2 out of 2 patents)

5. Siamak Lashkari (2 out of 2 patents)

6. Torsten Weber (1 out of 2 patents)

7. Bernd Erkes (1 out of 3 patents)

8. Lucia Fernandez Lopez (1 out of 1 patent)

9. Felix Mok (1 out of 3 patents)

10. Ganapathy Ramasubbu (1 out of 1 patent)

11. Anthony Mumba (1 out of 1 patent)

12. Ian Christopher Bailey (1 out of 1 patent)

13. Frédéric Pascal Olivier Muret (1 out of 1 patent)

14. Roza Tizvar (1 out of 1 patent)

15. David Alexander Summers (1 out of 3 patents)

13 patents: Sort by Forward Citations

1. 12528752 - Integrated ammonia and sulfuric acid production plant and process (2026-01-20),

2. 12448673 - Austenitic stainless alloy with superior corrosion resistance (2025-10-21),

3. 10556795 - Single contact, single absorption system for producing sulfuric acid with high conversion efficiency (2020-02-11),

4. 10532929 - Energy efficient sulfuric acid system for humid environments (2020-01-14),

5. 10376834 - Continuous process and apparatus for purifying SO2-containing gases (2019-08-13),

6. 10337113 - Side stream removal of impurities in electrolysis systems (2019-07-02),

7. 10174404 - Hydrometallurgical process using multi-stage nanofiltration (2019-01-08),

8. 9994451 - Single contact, single absorption system for producing sulfuric acid with high conversion efficiency (2018-06-12),

9. 9944523 - High strength, low salt hypochlorite production (2018-04-17),

10. 9869028 - Side stream removal of impurities in electrolysis systems (2018-01-16),

11. 9795899 - Membrane separation at high temperature differential (2017-10-24),

12. 9259665 - Liquid distribution trough for use in towers in sulphuric acid and carbon capture plants (2016-02-16),

13. 8882985 - Perchlorate removal from concentrated salt solutions using amphoteric ion-exchange resins (2014-11-11),

CHEMETICS INC. is a global leader in sulphuric acid plant design, manufacturing and construction. With over 50 years of experience, they provide customized solutions for a wide range of industries including fertilizer production, metallurgical processes, chemical refining, and more. CHEMETICS offers a comprehensive range of services including feasibility studies, process design, equipment supply, construction management, and after-sales support.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

13 Patents

#70 in Vancouver

#1,158 in Canada

#44,921 in the World

Vancouver, Canada

Chemetics Inc.

Forward Citations = 13

25 inventors:

Amit Shah (3 out of 3 patents)

Thomas S Drackett (3 out of 7 patents)

Graham Lyne (2 out of 2 patents)

4. Rene Dijkstra (2 out of 2 patents)

5. Siamak Lashkari (2 out of 2 patents)

Please report any incorrect information to [email protected]

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