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For the Inventor, By the Inventor

Frasnacht, Switzerland

Bruderer Ag


USPTO Granted Patents = 47

% Expired Patents = 6.4


Trademarks = 1

Forward Citations = 241

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18 inventors (with patents filed for the assignee):

goldMedal Oskar Eigenmann (15 out of 15 patents)

silverMedal Helmut Messner (11 out of 12 patents)

bronzeMedal Josef Thomas Hafner (7 out of 7 patents)

4.  Ingomar J Summerauer (5 out of 5 patents)

5.  August T Portmann (5 out of 5 patents)

6.  Ugo De Santis (4 out of 4 patents)

7.  Waldemar Hellwig (3 out of 3 patents)

8.  Georg Laager (2 out of 2 patents)

9.  Thomas Hartwig (2 out of 2 patents)

10.  Herbert Högger (2 out of 2 patents)

11.  Pascal Hardmeier (1 out of 1 patent)

12.  Andrea Molinari (1 out of 1 patent)

13.  Josef Landtwing (1 out of 1 patent)

14.  Martin Brunner (1 out of 1 patent)

15.  Peter Ruesch (1 out of 2 patents)


Core Competencies:
Punch Press
Servo Motor
Material Feeding
Gear Train
Spring-Damper
Web-Shaped Workpiece
Mass Forces
Tool Assembly
Laser Welding
Ram Guiding
Intermittent Feeding
Multistage Press

47 patents:

1. 12569904 - Method for determining the thickness of a material strip during the feed of the material strip to the machining zone of a machine tool (2026-03-10),
2. 12447522 - Method for operating a servo motor driven turning station of a stacking tool for a punch press (2025-10-21),
3. 12296552 - Punch press (2025-05-13),
4. 11976702 - Spring-damper element for the mounting of a punching press (2024-05-07),
5. 10962090 - Gear train unit and arrangement for a stamping press (2021-03-30),
6. 8739595 - Punching press (2014-06-03),
7. 8727931 - Gear train unit and arrangement for a stamping press (2014-05-20),
8. 7900803 - Apparatus for the intermittent supply of a semi-finished material in the form of a band or a wire to a press (2011-03-08),
9. 7637138 - Multistage press (2009-12-29),
10. 7374073 - Apparatus for feeding a band-type material to a press (2008-05-20),
11. 7222764 - Method of operating an apparatus for an intermittent feeding of a strip shaped blank to a press (2007-05-29),
12. 7111766 - Apparatus for and a method of an intermittent feeding of a strip shaped blank to a press (2006-09-26),
13. 6869002 - Apparatus for a intermittent feeding of a strip shaped blank to a press and a method of operating same (2005-03-22),
14. 6662988 - Apparatus for a stepwise feeding of a strip-shaped article (2003-12-16),
15. 6283352 - Apparatus for a stepwise feeding of a strip-like workpiece (2001-09-04),
Bruderer AG, headquartered in Frasnacht, Switzerland, specializes in the development and manufacturing of high-precision punch presses and automation solutions. The company is renowned for its expertise in servo motor technology, gear train units, and spring-damper elements, which enhance the efficiency and performance of its machinery. Bruderer AG also focuses on innovative processes such as intermittent feeding and laser welding apparatus, catering to diverse industries that require precision in handling web-shaped workpieces and multi-stroke press applications.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Bruderer Ag
47 Patents

#1 in Frasnacht

#307 in Switzerland

#14,796 in the World

Frasnacht, CH
Frasnacht, Switzerland

Bruderer Ag

Forward Citations = 241

18 inventors:

goldMedal Oskar Eigenmann (15 out of 15 patents)

silverMedal Helmut Messner (11 out of 12 patents)

bronzeMedal Josef Thomas Hafner (7 out of 7 patents)

4.  Ingomar J Summerauer (5 out of 5 patents)

5.  August T Portmann (5 out of 5 patents)

Please report any incorrect information to [email protected]
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