For the Inventor, By the Inventor

Enter assignee name

Zurich, Switzerland

Maerz Ofenbau Ag

USPTO Granted Patents = 20

CIPO Patents = 4

EPO Patents = 21

Trademarks = 4

Forward Citations = 59

Loading Chart...

Loading Chart...

18 inventors (with patents filed for the assignee):

Hannes Piringer (9 out of 9 patents)

Erwin Fussl (8 out of 8 patents)

Patrick Bucher (5 out of 6 patents)

4. Walter Egger (2 out of 2 patents)

5. Karl Scheibenreif (2 out of 2 patents)

6. Christoph Beyer (1 out of 4 patents)

7. Andreas Loebner (1 out of 2 patents)

8. Reinhard Püllenberg (1 out of 1 patent)

9. Jiri Pacak (1 out of 1 patent)

10. Norbert Berger (1 out of 1 patent)

11. Horst Waldert (1 out of 1 patent)

12. Max Ranner (1 out of 1 patent)

13. Dirk Schefer (2 patents)

14. Fernand Didelon (0 patent)

15. Roger Wallimann (0 patent)

20 patents: Sort by Forward Citations

1. 11703280 - Method and shaft furnace for burning carbon-containing material in a shaft furnace (2023-07-18),

2. 11034616 - System having a furnace and method for operating such a system (2021-06-15),

3. 10947125 - Furnace and method for operating a furnace (2021-03-16),

4. 10301219 - Parallel-flow regenerative lime kilns and processes for burning and cooling carbonate rock in same (2019-05-28),

5. 9919965 - Method for burning lump material (2018-03-20),

6. 9266774 - Method for burning pelletized good (2016-02-23),

7. 9011143 - Parallel flow regenerative lime kiln and method for the operation thereof (2015-04-21),

8. 7833012 - Process and apparatus for calcining solids or sludges (2010-11-16),

9. 7544321 - Process container with cooling elements (2009-06-09),

10. 7384263 - Process for burning lumps of material with lean gas (2008-06-10),

11. 6461154 - Method for burning carbonate-containing material (2002-10-08),

12. 5460517 - Shaft kiln for burning a lumpy mineral charge (1995-10-24),

13. 4810190 - Method and apparatus calcining mineral raw materials utilizing solid fuel (1989-03-07),

14. 4534731 - Process and apparatus for calcining limestone (1985-08-13),

15. 4482280 - Feeding apparatus for uniflow regenerative shaft furnaces for calcining (1984-11-13),

Maerz Ofenbau AG is a global leader in the design and construction of lime kilns. With over 150 years of experience, they provide innovative solutions for the iron, steel, and chemical industries. Maerz Ofenbau AG's expertise includes lime production plants, limestone calcination plants, and associated equipment. Their commitment to sustainability and energy efficiency sets them apart in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

20 Patents

#49 in Zurich

#595 in Switzerland

#30,316 in the World

Zurich, Switzerland

Maerz Ofenbau Ag

Forward Citations = 59

18 inventors:

Hannes Piringer (9 out of 9 patents)

Erwin Fussl (8 out of 8 patents)

Patrick Bucher (5 out of 6 patents)

4. Walter Egger (2 out of 2 patents)

5. Karl Scheibenreif (2 out of 2 patents)

Please report any incorrect information to support@idiyas.com

Loading…