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For the Inventor, By the Inventor

Schaffhausen, Switzerland

Georg Fischer Rohrleitungssysteme Ag


USPTO Granted Patents = 75



Trademarks = 13

Forward Citations = 448

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88 inventors (with patents filed for the assignee):

goldMedal Dirk Alexander Petry (8 out of 11 patents)

silverMedal Jorg Wermelinger (7 out of 12 patents)

bronzeMedal Joerg Wermelinger (6 out of 9 patents)

4.  Adelbert Schalk (6 out of 7 patents)

5.  Robert Reiz (5 out of 5 patents)

6.  Timo Jaeckle (5 out of 5 patents)

7.  Stefan Buergi (5 out of 5 patents)

8.  Markus Breyer (5 out of 8 patents)

9.  Juergen Stumpp (5 out of 5 patents)

10.  Riccardo Barbone (5 out of 5 patents)

11.  Joerg Hunnekuhl (4 out of 4 patents)

12.  Edin Hasific (4 out of 4 patents)

13.  Juergen Roesch (4 out of 4 patents)

14.  Erasmo Porfido (4 out of 9 patents)

15.  Jürgen Miklo (3 out of 4 patents)


Core Competencies:
Welding Assessment
Butterfly Valve
Pressure Control Valve
Pipeline Monitoring
Electrofusion Tape
Weld Seam Testing
Diaphragm Valve
Modular Fitting
Ball Valve
Leakage Indicator
Stripping Tool
Optical Waveguide

75 patents:

1. 12366555 - Welding assessment during welding process (2025-07-22),
2. 12313176 - Butterfly valve housing (2025-05-27),
3. 12292128 - Pressure control valve (2025-05-06),
4. 12281743 - Insulated subassembly (2025-04-21),
5. 12266095 - Monitoring of pipeline systems (2025-04-01),
6. 12188575 - Lockable latch (2025-01-07),
7. 12181093 - Weldable half-shell (2024-12-31),
8. 12016088 - Zone-based heating element (2024-06-18),
9. 11768183 - Testing sleeve welding (2023-09-26),
10. 11639034 - Electrofusion tape (2023-05-02),
11. 11624729 - Method for inspecting a weld (2023-04-11),
12. 11598469 - Length compensator (2023-03-07),
13. 11518111 - Weld seam testing chain (2022-12-06),
14. 11400568 - Installation method and device for pipeline components (2022-08-02),
15. 11306843 - Commissioning a diaphragm valve (2022-04-19),
Georg Fischer Rohrleitungssysteme AG is a leading provider of piping systems for industrial, municipal, and building applications. With a wide range of products and solutions, including pipes, fittings, valves, and automation systems, GF Piping Systems offers innovative and reliable solutions for various industries worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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75 Patents

#9 in Schaffhausen

#196 in Switzerland

#9,611 in the World

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Schaffhausen, Switzerland

Georg Fischer Rohrleitungssysteme Ag

Forward Citations = 448

88 inventors:

goldMedal Dirk Alexander Petry (8 out of 11 patents)

silverMedal Jorg Wermelinger (7 out of 12 patents)

bronzeMedal Joerg Wermelinger (6 out of 9 patents)

4.  Adelbert Schalk (6 out of 7 patents)

5.  Robert Reiz (5 out of 5 patents)

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