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Handy Chemicals Ltd.

USPTO Granted Patents = 9

CIPO Patents = 3

Trademarks = 4

Forward Citations = 80

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13 inventors (with patents filed for the assignee):

Carmel R Jolicoeur (5 out of 11 patents)

Dieter Haase (5 out of 5 patents)

Nelu Spiratos (4 out of 4 patents)

4. Ioan Spiratos (2 out of 5 patents)

5. Russell Hill (1 out of 58 patents)

6. Thi Cong To (1 out of 8 patents)

7. Monique Page (1 out of 4 patents)

8. Denis Pothier (1 out of 1 patent)

9. Robert M Christie (1 out of 1 patent)

10. Mario Dupuis (1 out of 1 patent)

11. Lionel De Waltoff (1 out of 1 patent)

12. Siddiq A Khan (1 out of 1 patent)

13. William O Layer (1 out of 1 patent)

14. Dieter Haase (0 patent)

15. Carmel Jolicoeur (0 patent)

9 patents: Sort by Forward Citations

1. 7485184 - Sacrificial agents for fly ash concrete (2009-02-03),

2. 5424390 - Processes for manufacture of sulfonated melamine-formaldehyde resins (1995-06-13),

3. 5296213 - Polymeric aluminum silicate-sulphate and process for producing same (1994-03-22),

4. 5149400 - Polymeric basic aluminum silicate-sulphate (1992-09-22),

5. 5069893 - Polymeric basic aluminum silicate-sulphate (1991-12-03),

6. 4981675 - Polymeric basic aluminum silicate-sulphate (1991-01-01),

7. 4877597 - Method for producing aqueous solutions of basic poly aluminum sulphate (1989-10-31),

8. 4252735 - Stable aqueous alkali metal aluminate solutions (1981-02-24),

9. 3971861 - Alloy plating system (1976-07-27),

Handy Chemicals Ltd. is a leading manufacturer of specialty chemicals for various industries. With over 20 years of experience, we offer a wide range of high-quality products designed to meet the needs of our customers. Our commitment to innovation, quality, and customer service sets us apart in the industry.

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

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USPTO Data Jan 1 1976 - Jan 6 2026

9 Patents

#224 in

#1,638 in Canada

Handy Chemicals Ltd.

Forward Citations = 80

13 inventors:

Carmel R Jolicoeur (5 out of 11 patents)

Dieter Haase (5 out of 5 patents)

Nelu Spiratos (4 out of 4 patents)

4. Ioan Spiratos (2 out of 5 patents)

5. Russell Hill (1 out of 58 patents)

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