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Duisburg, Germany

Grillo-werke Ag

USPTO Granted Patents = 25

CIPO Patents = 5

EPO Patents = 14

Trademarks = 1

Forward Citations = 195

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48 inventors (with patents filed for the assignee):

Jochen Spriestersbach (5 out of 5 patents)

Klaus Driemel (5 out of 5 patents)

Wolfgang Glaeser (4 out of 4 patents)

4. Norbert Lowicki (4 out of 4 patents)

5. Dieter Mm Rohe (3 out of 3 patents)

6. Natvarlal B Desai (3 out of 3 patents)

7. Timo Ott (2 out of 13 patents)

8. Ingo Biertümpel (2 out of 5 patents)

9. Armin Melzer (2 out of 2 patents)

10. Petra Merkel (2 out of 2 patents)

11. Rudi Kube (2 out of 2 patents)

12. Norbert Schulz (2 out of 2 patents)

13. Jurgen Wisniewski (2 out of 2 patents)

14. Ingo Biertuempel (2 out of 3 patents)

15. Michael Knepper (2 out of 2 patents)

25 patents: Sort by Forward Citations

1. 11634385 - Process for the preparation of haloalkanesulfonic acids from sulfur trioxide and a haloalkane (2023-04-25),

2. 10329251 - Initiator for preparing alkanesulfonic acids from alkane and oleum (2019-06-25),

3. 7524582 - Zinc powder or zinc alloy powder for alkaline batteries (2009-04-28),

4. 7329828 - Method for inert gas welding or inert gas soldering of workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal (2008-02-12),

5. 7323031 - Zinc powder or zinc alloy powder with inhomogeneous bulk density for alkaline batteries (2008-01-29),

6. 7067094 - Process for the brightening of sodium hydrogensulfate (2006-06-27),

7. 6706220 - Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same (2004-03-16),

8. 6680085 - Method and device for thermal spraying for the coating of surfaces (2004-01-20),

9. 6376102 - Thermally sprayed anticorrosion layer for reinforced concrete and method for making the preparation thereof (2002-04-23),

10. 6224943 - Method for improving the corrosion resistance of reinforced concrete (2001-05-01),

11. 6071359 - Shot for use as ammunition (2000-06-06),

12. 6060621 - Process for the preparation of methanesulfonic acid (2000-05-09),

13. 5240793 - Alkaline batteries containing a zinc powder with indium and bismuth (1993-08-31),

14. 5191155 - Process for nonpolluting destruction of polychlorinated waste materials (1993-03-02),

15. 4968496 - Deodorants and the preparation and use thereof (1990-11-06),

Grillo-Werke AG is a German company specializing in the production of chemically defined zinc oxide and zinc salts. With over 200 years of experience, Grillo-Werke has established itself as a leading global supplier of high-quality zinc products for various industries including rubber, ceramics, pharmaceuticals, and electronics.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

25 Patents

#13 in Duisburg

#1,866 in Germany

#24,897 in the World

Duisburg, Germany

Grillo-werke Ag

Forward Citations = 195

48 inventors:

Jochen Spriestersbach (5 out of 5 patents)

Klaus Driemel (5 out of 5 patents)

Wolfgang Glaeser (4 out of 4 patents)

4. Norbert Lowicki (4 out of 4 patents)

5. Dieter Mm Rohe (3 out of 3 patents)

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