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For the Inventor, By the Inventor

Oftringen, Switzerland

Omya Development Ag


USPTO Granted Patents = 28

% Expired Patents = 46.4



Forward Citations = 137

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32 inventors (with patents filed for the assignee):

goldMedal Patrick A C Gane (20 out of 196 patents)

silverMedal Matthias Buri (14 out of 111 patents)

bronzeMedal René Vinzenz Blum (7 out of 33 patents)

4.  Daniel Gantenbein (5 out of 34 patents)

5.  Joachim Schölkopf (4 out of 22 patents)

6.  Beat Karth (3 out of 13 patents)

7.  Catherine Jean Ridgway (2 out of 17 patents)

8.  Jacques Mongoin (2 out of 53 patents)

9.  Patrick Schwarzentruber (2 out of 15 patents)

10.  Maximilian Laufmann (2 out of 4 patents)

11.  Uwe Gisella (2 out of 2 patents)

12.  Philipp Hunziker (1 out of 19 patents)

13.  Joachim Schoelkopf (1 out of 51 patents)

14.  Michael Pohl (1 out of 23 patents)

15.  Christian Rainer (1 out of 10 patents)


Core Competencies:
Calcium Carbonate
Water Treatment
Tissue Paper
Mineral Purification
Hydrophobic Fillers
Aqueous Suspensions
Dry Grinding
Composite Materials
Pitch Control
Mineral Powders
Endocrine Disruptors
Ground Mineral Matter

28 patents:

1. 8778294 - Process for production of PCC (2014-07-15),
2. RE44601 - Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof (2013-11-18),
3. 8470181 - Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment (2013-06-25),
4. 8460510 - Use of a surface-reacted calcium carbonate in tissue paper, process to prepare a tissue paper product of improved softness, and resulting improved softness tissue paper products (2013-06-11),
5. 8444071 - Process for dry grinding of one or more mineral materials including at least one calcium carbonate (2013-05-21),
6. 8440298 - Method for dry grinding a material containing a carbonate ore (2013-05-14),
7. 8393557 - Method for manufacturing fine mineral powder products (2013-03-12),
8. 8381915 - Process of purification of minerals based on calcium carbonate by flotation in the presence of quaternary imidazolium methosulfate (2013-02-26),
9. 8372293 - Method for producing aqueous suspensions of mineral fillers, the thus obtained aqueous suspensions of mineral fillers and the use thereof (2013-02-12),
10. 8372244 - Process for the control of pitch (2013-02-12),
11. 8362131 - Procedure for manufacture of aqueous suspensions of calcium carbonate and suspensions obtained, and their uses (2013-01-29),
12. 8349939 - Composites of inorganic and/or organic microparticles and nano-calcium carbonate particles (2013-01-08),
13. 8329289 - Composites of inorganic and/or organic microparticles and nano-calcium carbonate particles (2012-12-11),
14. 8252142 - Use of a surface-reacted calcium carbonate in tissue paper, process to prepare a tissue paper product of improved softness, and resulting improved softness tissue paper products (2012-08-28),
15. 8187589 - Stabilisation of aqueous mineral preparations by reuterin (2012-05-29),
Omya Development AG, based in Oftringen, Switzerland, specializes in the development and manufacturing of high-quality mineral-based products. The company focuses on providing innovative solutions in various industries, including plastics, paints, and coatings, as well as pharmaceuticals and food. With a strong emphasis on research and technology, Omya aims to enhance product performance and sustainability through advanced mineral applications, catering to a global market while maintaining a commitment to environmental responsibility.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

28 Patents

#2 in Oftringen

#473 in Switzerland

#23,244 in the World

Oftringen, CH
Oftringen, Switzerland

Omya Development Ag

Forward Citations = 137

32 inventors:

goldMedal Patrick A C Gane (20 out of 196 patents)

silverMedal Matthias Buri (14 out of 111 patents)

bronzeMedal René Vinzenz Blum (7 out of 33 patents)

4.  Daniel Gantenbein (5 out of 34 patents)

5.  Joachim Schölkopf (4 out of 22 patents)

Please report any incorrect information to [email protected]
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