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For the Inventor, By the Inventor

Oftringen, Switzerland

Omya International Ag


USPTO Granted Patents = 307



Forward Citations = 274

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199 inventors (with patents filed for the assignee):

goldMedal Patrick A C Gane (156 out of 196 patents)

silverMedal Matthias Buri (82 out of 111 patents)

bronzeMedal Samuel Rentsch (68 out of 70 patents)

4.  Joachim Schoelkopf (42 out of 51 patents)

5.  Daniel Edward Gerard (29 out of 30 patents)

6.  Daniel Gantenbein (24 out of 34 patents)

7.  René Vinzenz Blum (22 out of 33 patents)

8.  Michael Pohl (20 out of 23 patents)

9.  Martin Brunner (16 out of 23 patents)

10.  René Burkhalter (16 out of 16 patents)

11.  Joachim Schölkopf (16 out of 22 patents)

12.  Catherine Jean Ridgway (15 out of 17 patents)

13.  Philipp Hunziker (15 out of 19 patents)

14.  Matthias Welker (14 out of 18 patents)

15.  Fabio Ippolito (13 out of 13 patents)


Core Competencies:
Porous Fillers
Calcium Carbonate
Coating Formulation
Surfactants
Functionalized Calcium Carbonate
Surface-Reacted Materials
Asphalt Composition
Quantum Dot Patterns
Mineral Oil Barriers
Moisture-Capturing Compositions
Biochemical Modifiers
Tamper-Proof Media

307 patents:

1. 12486379 - Use of a porous filler for reducing the gas permeability of an elastomer composition (2025-12-02),
2. 12479973 - Process for preparing a surface treated calcium carbonate material (2025-11-25),
3. 12391839 - Coating formulation for a digital print medium (2025-08-19),
4. 12357976 - GNCC and/or PCC as a catalytic carrier for metal species (2025-07-15),
5. 12345634 - Method and apparatus for detecting an amorphous and/or crystalline structure of phosphate and/or sulphate salts on the surface of a substrate or within a substrate (2025-07-01),
6. 12331200 - Production of surface-reacted calcium salts by grinding induced conversion (2025-06-17),
7. 12319866 - Alkaline earth metal minerals as carriers for surfactants in drilling fluids (2025-06-03),
8. 12280130 - Functionalized calcium carbonate for sun protection boosting (2025-04-21),
9. 12275853 - Process for preparing surface-reacted calcium carbonate (2025-04-14),
10. 12258461 - Bitumen product (2025-03-25),
11. 12247128 - Process for preparing an aqueous suspension comprising a ground calcium carbonate-comprising material (2025-03-11),
12. 12240982 - Process for preparing a surface-treated calcium carbonate material (2025-03-04),
13. 12215301 - Magnesium carbonate as a carrier for the release of active agents in a home care formulation (2025-02-04),
14. 12145884 - Asphalt slurry seal composition (2024-11-19),
15. 12115258 - High performance excipient comprising co-processed microcrystalline cellulose and surface-reacted calcium carbonate (2024-10-15),
OMYA INTERNATIONAL AG is a leading global producer of industrial minerals, mainly focused on the production and distribution of calcium carbonate. With headquarters in Switzerland, OMYA operates worldwide and offers a wide range of mineral-based products for various industries including paper, plastics, coatings, adhesives, and construction. The company emphasizes sustainability and innovation in its operations, aiming to provide eco-friendly solutions to its customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

307 Patents

#1 in Oftringen

#52 in Switzerland

#2,830 in the World

...
Oftringen, Switzerland

Omya International Ag

Forward Citations = 274

199 inventors:

goldMedal Patrick A C Gane (156 out of 196 patents)

silverMedal Matthias Buri (82 out of 111 patents)

bronzeMedal Samuel Rentsch (68 out of 70 patents)

4.  Joachim Schoelkopf (42 out of 51 patents)

5.  Daniel Edward Gerard (29 out of 30 patents)

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