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For the Inventor, By the Inventor

Baar, Switzerland

Stopinc Aktiengesellschaft


USPTO Granted Patents = 73

% Expired Patents = 15.1



Trademarks = 1

Forward Citations = 320

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58 inventors (with patents filed for the assignee):

goldMedal Werner Keller (13 out of 16 patents)

silverMedal Robert Fricker (10 out of 11 patents)

bronzeMedal Ernst Meier (9 out of 10 patents)

4.  Benno Steiner (8 out of 12 patents)

5.  Rolf Waltenspuhl (8 out of 10 patents)

6.  Herbert Bachmann (6 out of 11 patents)

7.  Walter Toaldo (5 out of 5 patents)

8.  Werner Plattner (5 out of 5 patents)

9.  Urs Truttmann (4 out of 4 patents)

10.  Armin Kursfeld (4 out of 4 patents)

11.  Udo Muschner (3 out of 13 patents)

12.  Beat Troxler (3 out of 3 patents)

13.  Jean-Daniel Cousin (2 out of 6 patents)

14.  Harry Amsler (2 out of 2 patents)

15.  Reinhard Ehrengruber (2 out of 2 patents)


Core Competencies:
Sliding Closure
Refractory Assembly
Casting Tube Changer
Slide Gate Valve
Molten Metal
Closure Plate
Casting Pipe
Slide Valve
Nozzle Tube
Fireproof Unit
Continuous Casting
Tensioning Device

73 patents:

1. 9950365 - Device for fastening a perforated block and perforated block (2018-04-24),
2. 9884366 - Closure plate, and a slide closure on the spout of a container containing molten metal (2018-02-06),
3. 9314841 - Pressing device for a casting pipe at the spout of a metallurgical container (2016-04-19),
4. 9266169 - Closure plate, and a slide closure on the spout of a container containing molten metal (2016-02-23),
5. 9108245 - Sliding closure for a receptacle containing molten metal (2015-08-18),
6. 9085029 - Monitoring device for a sliding closure, a casting tube changer or the like on a metallurgical vessel (2015-07-21),
7. 9027802 - Fireproof unit for a sliding closure at the spout of a container for metal melt (2015-05-12),
8. 8991663 - Casting tube mounting, in particular for a sliding closure (2015-03-31),
9. 8906290 - Method for exchangeably fastening a refractory purge plug or sleeve (2014-12-09),
10. 8795583 - Nozzle tube changer having a dummy plate for a casting device for producing metallurgic products (2014-08-05),
11. 8771587 - Copper anode furnace and a method for operating the same (2014-07-08),
12. 8740024 - Closing plate and sliding closure on the spout of a receptacle for molten metal (2014-06-03),
13. 8498740 - Arrangement for the maintenance of a sliding closure mounted on the spout of a container for molten metal (2013-07-30),
14. 8371484 - Sliding closure for a vessel containing molten metal (2013-02-12),
15. 7530479 - Device for actuating a sliding closure applied to a vessel containing a molten metal (2009-05-12),
Stopinc Aktiengesellschaft is a multinational company that specializes in providing innovative solutions in the telecommunications industry. With headquarters in Germany, Stopinc AG offers a wide range of advanced services including network infrastructure, wireless technology, cloud computing, and software development. Their commitment to excellence and customer satisfaction has made them a trusted partner for leading telecommunications providers across the globe.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

73 Patents

#9 in Baar

#212 in Switzerland

#10,238 in the World

Baar, CH
Baar, Switzerland

Stopinc Aktiengesellschaft

Forward Citations = 320

58 inventors:

goldMedal Werner Keller (13 out of 16 patents)

silverMedal Robert Fricker (10 out of 11 patents)

bronzeMedal Ernst Meier (9 out of 10 patents)

4.  Benno Steiner (8 out of 12 patents)

5.  Rolf Waltenspuhl (8 out of 10 patents)

Please report any incorrect information to [email protected]
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