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Process Research Ortech Inc.

USPTO Granted Patents = 8

% Expired Patents = 50.0

CIPO Patents = 2

Forward Citations = 28

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17 inventors (with patents filed for the assignee):

Ramamritham Sridhar (8 out of 22 patents)

Vaikuntam Iyer Lakshmanan (7 out of 18 patents)

M A Halim (3 out of 3 patents)

4. Jonathan Chen (2 out of 2 patents)

5. Robert J DeLaat (2 out of 2 patents)

6. Md Abdul Halim (1 out of 2 patents)

7. Dipak Patel (1 out of 1 patent)

8. Mansoor Barati (1 out of 1 patent)

9. Kingsley Kweku Larbi (1 out of 1 patent)

10. Raja Roy (1 out of 1 patent)

11. George Puvvada (1 out of 4 patents)

12. G Bryn Harris (1 out of 4 patents)

13. Vaikuntum I Lakshmanan (1 out of 1 patent)

14. V Mohan Malhotra (1 out of 1 patent)

15. Noel Paul Mailvaganam (1 out of 2 patents)

8 patents: Sort by Forward Citations

1. 10053750 - Recovery of nickel in leaching of laterite ores (2018-08-21),

2. 10041141 - Process for the separation of iron in extraction of titanium in mixed chloride media (2018-08-07),

3. 9732398 - Chloride process for the leaching of gold (2017-08-15),

4. 9115419 - Process for extraction of rare earth elements (2015-08-25),

5. 8916116 - Separation of iron from value metals in leaching of laterite ores (2014-12-23),

6. 8337795 - Production of high purity silicon from amorphous silica (2012-12-25),

7. 7803336 - Process for the recovery of titanium in mixed chloride media (2010-09-28),

8. 6730161 - Treatment of fly ash (2004-05-04),

Process Research Ortech Inc. (PRO) is a Canadian research and development company that specializes in providing innovative solutions for process engineering and environmental technologies. With over 30 years of experience, PRO offers a range of services including pilot plant operations, process optimization, and environmental testing. Their team of experts is dedicated to delivering high-quality results to clients in the chemical, mining, and energy industries.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

8 Patents

#196 in

#1,878 in Canada

Process Research Ortech Inc.

Forward Citations = 28

17 inventors:

Ramamritham Sridhar (8 out of 22 patents)

Vaikuntam Iyer Lakshmanan (7 out of 18 patents)

M A Halim (3 out of 3 patents)

4. Jonathan Chen (2 out of 2 patents)

5. Robert J DeLaat (2 out of 2 patents)

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