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For the Inventor, By the Inventor

Männedorf, Switzerland

Ernst Grob Ag


USPTO Granted Patents = 19

% Expired Patents = 5.3



Forward Citations = 87

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13 inventors (with patents filed for the assignee):

goldMedal Daniel Deriaz (8 out of 8 patents)

silverMedal Daniel Dériaz (3 out of 3 patents)

bronzeMedal Peter Geser (3 out of 3 patents)

4.  Hans Krapfenbauer (3 out of 6 patents)

5.  Jan Schmid (2 out of 2 patents)

6.  Niculo Steinrisser (2 out of 3 patents)

7.  Fabian Ruh (2 out of 2 patents)

8.  Marc Dériaz (1 out of 1 patent)

9.  Daniel Dériaz (1 out of 1 patent)

10.  Werner Schuler (1 out of 1 patent)

11.  Hans Krapfenbauer (1 out of 1 patent)

12.  Franco De Marco (1 out of 1 patent)

13.  Ekrem Kapkin (1 out of 1 patent)


19 patents:

1. 12179254 - Apparatus and method for profiling workpieces by cold forming (2024-12-31),
2. 11498114 - Thin-walled hollow wheels with internal and external toothing, and apparatus and method for manufacturing the same (2022-11-15),
3. 10655693 - Manufacturing method for a composite brake disc as well as a corresponding composite brake disc (2020-05-19),
4. 10072718 - Composite brake disc and method and apparatus for manufacture of the same (2018-09-11),
5. 9174291 - Apparatus and method for manufacturing thick-walled hollow wheels having an internal gear toothing (2015-11-03),
6. 8117884 - Method for producing internal and external toothings on thin-walled, cylindrical hollow parts (2012-02-21),
7. 7955020 - Grooved profile for a hub shaft connection (2011-06-07),
8. 7874760 - Tooth profile of a spline shaft (2011-01-25),
9. 7861572 - Method and device for making at least partly profiled tubes (2011-01-04),
10. 7562549 - Device and method for producing tooth-like profiled sections on workpieces (2009-07-21),
11. 6345526 - Punching and stamping machine and method of making parts using same (2002-02-12),
12. 6089065 - Process and arrangement for the cold forming of hollow workpieces (2000-07-18),
13. 5765419 - Method and apparatus for a rolling of hollow articles (1998-06-16),
14. 5546781 - Process for the production of a toothed rack via cold forming, the rack (1996-08-20),
15. 5471858 - Apparatus and process for the production of a hollow workpiece being (1995-12-05),
Company Overview
Ernst Grob AG is a Swiss company based in Männedorf, specializing in the development and manufacturing of precision mechanical components and systems. The organization focuses on high-quality engineering solutions, particularly in the fields of watchmaking, medical technology, and industrial applications. With a commitment to innovation and precision, Ernst Grob AG serves a diverse clientele, leveraging advanced manufacturing techniques to meet the evolving demands of various industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

19 Patents

#3 in Männedorf

#645 in Switzerland

#32,693 in the World

Männedorf, CH
Männedorf, Switzerland

Ernst Grob Ag

Forward Citations = 87

13 inventors:

goldMedal Daniel Deriaz (8 out of 8 patents)

silverMedal Daniel Dériaz (3 out of 3 patents)

bronzeMedal Peter Geser (3 out of 3 patents)

4.  Hans Krapfenbauer (3 out of 6 patents)

5.  Jan Schmid (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ernst Grob Ag. Retrieved from https://idiyas.com/company/ernst-grob-ag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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