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For the Inventor, By the Inventor

Kassel, Germany

K+s Aktiengesellschaft


USPTO Granted Patents = 13

% Expired Patents = 38.5



Trademarks = 1

Forward Citations = 13

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33 inventors (with patents filed for the assignee):

goldMedal Guido Baucke (6 out of 7 patents)

silverMedal Armin Dietrich (6 out of 7 patents)

bronzeMedal Ludger Waldmann (6 out of 8 patents)

4.  Stefan Dressel (5 out of 5 patents)

5.  Wolfgang Walczyk (4 out of 5 patents)

6.  Sebastian Kopf (3 out of 3 patents)

7.  Paul Meissner (3 out of 3 patents)

8.  Jochen Brod (2 out of 2 patents)

9.  Ingo Stahl (2 out of 10 patents)

10.  David Scherr (1 out of 1 patent)

11.  Torsten Rest (1 out of 2 patents)

12.  Michael Krueger (1 out of 3 patents)

13.  Uwe Wachsmuth (1 out of 1 patent)

14.  Stefan Thenert (1 out of 1 patent)

15.  Ulrich Kleine-Kleffmann (1 out of 7 patents)


13 patents:

1. 12709546 - METHOD FOR PRODUCING SULPHUR-CONTAINING POTASH GRANULES (2026-08-18),
2. 11814298 - Method for producing potassium chloride granular materials (2023-11-14),
3. 11814297 - Method for producing potassium chloride granular material (2023-11-14),
4. 11795060 - Process for producing potassium chloride granulates (2023-10-24),
5. 10723632 - Magnesium sulfate granulates based on synthetic magnesium sulphate (2020-07-28),
6. 10118183 - Process for the selective floatation of kainite from mineral mixtures using sulfated fatty acids as the collector reagent (2018-11-06),
7. 9994491 - Composition of a magnesium sulphate-urea compound (2018-06-12),
8. 9752014 - Process for the manufacture of nano-scale, primary, coated hydrotalcite and hydrotalcite (2017-09-05),
9. 9625391 - LIBS measurement tube (2017-04-18),
10. 9393572 - Electrostatic separation of a mixture of valuable materials, e.g., a mineral salt mixture, by means of a pipe separator, and device for electrostatically separating such a mixture of valuable materials by means of a pipe separator, and method for electrostatic separation (2016-07-19),
11. 7635822 - Method for treating ground crude potassium salts that contain kieserite (2009-12-22),
12. 7553462 - [object Object] (2009-06-30),
13. 7534586 - Method for producing biomass (2009-05-19),
K+s Aktiengesellschaft is a German chemical company headquartered in Kassel, Germany. The company is one of the world's leading suppliers of specialty and standard fertilizers, as well as salt products. K+S operates production sites in Europe and North and South America, serving customers in over 100 countries worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

13 Patents

#12 in Kassel

#3,069 in Germany

#44,921 in the World

Kassel, DE
Kassel, Germany

K+s Aktiengesellschaft

Forward Citations = 13

33 inventors:

goldMedal Guido Baucke (6 out of 7 patents)

silverMedal Armin Dietrich (6 out of 7 patents)

bronzeMedal Ludger Waldmann (6 out of 8 patents)

4.  Stefan Dressel (5 out of 5 patents)

5.  Wolfgang Walczyk (4 out of 5 patents)

Please report any incorrect information to [email protected]
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