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Omya Sa

USPTO Granted Patents = 8

% Expired Patents = 25.0

EPO Patents = 1

Forward Citations = 77

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15 inventors (with patents filed for the assignee):

Pierre Blanchard (4 out of 17 patents)

Maurice Husson (4 out of 7 patents)

Georges Ravet (4 out of 33 patents)

4. Jean-Pierre Fichou (3 out of 3 patents)

5. Bernard Barroyer (2 out of 2 patents)

6. Claude Cabannes (2 out of 2 patents)

7. Jean Pierre Fichou (1 out of 1 patent)

8. Henri Barnier (1 out of 1 patent)

9. Dieter Strauch (1 out of 9 patents)

10. Pierre Delfosse (1 out of 5 patents)

11. Luis Pedroso (3 patents)

12. Ana Teresa Gomes De Oliveira Manaia (0 patent)

13. Maria Teresa Freire Vieira (0 patent)

14. Carolina Curado (0 patent)

15. João Pedro Freire Duarte (0 patent)

8 patents: Sort by Forward Citations

1. 6787575 - Method for processing a mineral fillers with a phosphate, said fillers and their uses (2004-09-07),

2. 6765032 - Treated mineral fillers suspensions of these fillers in polyols and their uses in polyurethane foams (2004-07-20),

3. 6545059 - Treated mineral fillers suspensions of these fillers in polyols and their uses in polyurethane foams (2003-04-08),

4. 6159390 - Treated mineral fillers suspensions of these fillers in polyols and (2000-12-12),

5. 5171409 - Continuous process of separating electrically charged solid, pulverulent (1992-12-15),

6. 4741624 - Device for putting in contact fluids appearing in the form of different (1988-05-03),

7. 4702114 - Device for withdrawing and conditioning samples of materials in solid, (1987-10-27),

8. 4284546 - Coating substances with a high concentration of solids, for coated papers (1981-08-18),

Omya Sa is a leading global producer of industrial minerals, mainly fillers and pigments derived from calcium carbonate and dolomite, serving a wide range of industries. With a focus on sustainability and innovation, Omya is committed to providing high-quality products and solutions to customers worldwide.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

8 Patents

#416 in Paris

#2,020 in France

Omya Sa

Forward Citations = 77

15 inventors:

Pierre Blanchard (4 out of 17 patents)

Maurice Husson (4 out of 7 patents)

Georges Ravet (4 out of 33 patents)

4. Jean-Pierre Fichou (3 out of 3 patents)

5. Bernard Barroyer (2 out of 2 patents)

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