For the Inventor, By the Inventor

Enter assignee name

Baar, Switzerland

Stopinc Aktiengesellschaft

Calculating rank

USPTO Granted Patents = 73

% Expired Patents = 15.1

CIPO Patents = 1

EPO Patents = 16

Trademarks = 1

Forward Citations = 320

Loading Chart...

Loading Chart...

58 inventors (with patents filed for the assignee):

Werner Keller (13 out of 16 patents)

Robert Fricker (10 out of 11 patents)

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: Sort by Forward Citations

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),

Company Overview

Stopinc Aktiengesellschaft, headquartered in Baar, Switzerland, specializes in the development and manufacturing of advanced metallurgical equipment. The company focuses on innovative solutions for the metal casting industry, including sliding closures, refractory assemblies, and slide gate valves. Their expertise extends to technologies that enhance the handling of molten metal, such as casting tube changers and closure plates. Stopinc is committed to delivering high-quality products that improve efficiency and safety in metallurgical processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

73 Patents

#9 in Baar

#213 in Switzerland

#10,278 in the World

Baar, Switzerland

Stopinc Aktiengesellschaft

Forward Citations = 320

58 inventors:

Werner Keller (13 out of 16 patents)

Robert Fricker (10 out of 11 patents)

Ernst Meier (9 out of 10 patents)

4. Benno Steiner (8 out of 12 patents)

5. Rolf Waltenspuhl (8 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stopinc Aktiengesellschaft. Retrieved from https://idiyas.com/company/stopinc-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]

Loading…