For the Inventor, By the Inventor

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Durham, United Kingdom

Domnick Hunter Filters Ltd.

USPTO Granted Patents = 11

Trademarks = 5

Forward Citations = 207

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12 inventors (with patents filed for the assignee):

Colin T Billiet (7 out of 23 patents)

David Baggett (4 out of 4 patents)

Robert Michael Fielding (3 out of 11 patents)

4. Alan Bateman (2 out of 2 patents)

5. Jerome F Ditter (1 out of 15 patents)

6. Ian Sinclair (1 out of 2 patents)

7. Leslie B Spark (1 out of 1 patent)

8. Richard Curry (1 out of 1 patent)

9. Jeffrey Porter (1 out of 1 patent)

10. James I Stenhouse (1 out of 1 patent)

11. Stephen N Smith (1 out of 1 patent)

12. Colin T Billet (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 4838905 - Filter element and method of making a filter element (1989-06-13),

2. 4823727 - Pressure indicator (1989-04-25),

3. 4788226 - Polyamide membranes (1988-11-29),

4. 4786298 - Filter assembly (1988-11-22),

5. 4774038 - Polyamide membranes (1988-09-27),

6. 4732861 - Method and apparatus for detecting oil aerosol (1988-03-22),

7. 4701258 - Filter housings (1987-10-20),

8. 4696687 - Filters (1987-09-29),

9. 4668256 - Liquid/gas separation (1987-05-26),

10. 4564376 - Filter element and method of making a filter element (1986-01-14),

11. 4537748 - Apparatus for treating compressed air for breathing purposes (1985-08-27),

Domnick Hunter Filters Ltd. is a leading provider of filtration solutions for industrial applications. With over 50 years of experience, they offer a wide range of high-quality filters and filtration systems to meet the needs of various industries including food and beverage, pharmaceutical, and automotive. Their innovative products are designed to improve efficiency, reduce operating costs, and ensure product quality. Domnick Hunter Filters Ltd. is committed to delivering exceptional customer service and technical support to help clients achieve optimal filtration performance.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

11 Patents

#4 in Durham

#1,563 in United Kingdom

#50,255 in the World

Durham, United Kingdom

Domnick Hunter Filters Ltd.

Forward Citations = 207

12 inventors:

Colin T Billiet (7 out of 23 patents)

David Baggett (4 out of 4 patents)

Robert Michael Fielding (3 out of 11 patents)

4. Alan Bateman (2 out of 2 patents)

5. Jerome F Ditter (1 out of 15 patents)

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