% Expired Patents = 60.0

Forward Citations = 3

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6 inventors (with patents filed for the assignee):

David Edward Deegan (5 out of 15 patents)

Saeed Ismail (3 out of 7 patents)

Chris David Chapman (2 out of 11 patents)

4. Matthew Slinn (1 out of 1 patent)

5. Shashini Premathilaka (1 out of 1 patent)

6. Tim Johnson (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 9611520 - Base metal recovery (2017-04-04),

2. 9441284 - Precious metal recovery (2016-09-13),

3. 9382144 - Hazardous waste treatment process (2016-07-05),

4. 9057118 - Plasma method and apparatus for recovery of precious metals (2015-06-16),

5. 8404919 - Treatment of nuclear sludge (2013-03-26),

Tetronics (International) Limited is a global leader in the supply of direct current (DC) plasma arc solutions for a wide range of applications, including resource recovery, hazardous waste treatment, and metal recovery. With over 50 years of experience, Tetronics has a proven track record of delivering innovative and sustainable solutions to its clients around the world.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

5 Patents

#11 in Swindon

#3,210 in United Kingdom

Swindon, United Kingdom

Tetronics (International) Limited