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Maschinenfabrik Andritz Aktiengesellschaft

USPTO Granted Patents = 14

Forward Citations = 82

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24 inventors (with patents filed for the assignee):

Rupert Syrowatka (4 out of 8 patents)

Johannes Kappel (3 out of 13 patents)

Johann Lileg (2 out of 4 patents)

4. Emmerich Bernhard (2 out of 4 patents)

5. Dag Bergloff (2 out of 8 patents)

6. Sven-Erik Henriksson (2 out of 3 patents)

7. Ernst Tutschek (2 out of 2 patents)

8. Franz Petschauer (1 out of 15 patents)

9. Peter Scheucher (1 out of 19 patents)

10. Johann Sbaschnigg (1 out of 17 patents)

11. Kiriazis Kiriazaros (1 out of 2 patents)

12. Heinz Perchthaler (1 out of 6 patents)

13. Georg Ickinger (1 out of 5 patents)

14. Wolfgang Kladnig (1 out of 2 patents)

15. Heinz Krivanec (1 out of 3 patents)

14 patents: Sort by Forward Citations

1. 5238501 - Method for treatment of a fibrous material-fluid mixture (1993-08-24),

2. 5217722 - Apparatus for producing a conveyor belt (1993-06-08),

3. 5048768 - Crushing or grinding element for drum refiners (1991-09-17),

4. 5036037 - Process of making catalysts and catalysts made by the process (1991-07-30),

5. 4936518 - Apparatus for crushing or grinding of fibrous material, in particular (1990-06-26),

6. 4460461 - Device for the regulation of a water-removing machine (1984-07-17),

7. 4456530 - Apparatus for improving gravity dehydration in strainer belt presses (1984-06-26),

8. 4302871 - Press or reversing roller for double sieve band drainage machines (1981-12-01),

9. 4234237 - Bearing for heavy steel drums, in particular decorticating drums (1980-11-18),

10. 4218970 - Compression rollers for dehydration equipment (1980-08-26),

11. 4147101 - Press for dehydrating fibrous materials and other substances (1979-04-03),

12. 3995375 - Discharge and draw-off device for driers of material webs (1976-12-07),

13. 3994619 - Sealing-compartment arrangement in main coolant pumps (1976-11-30),

14. 3942433 - Roller arrangement in presses for the removal of water from materials (1976-03-09),

Maschinenfabrik Andritz is an Austrian industrial group specialized in machines and plants for various industries, including pulp and paper, metalworking, hydropower, and environmental solutions. With a history dating back to 1852, Andritz is known for its innovative technologies and high-quality products that help customers achieve sustainable success.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#11 in

#228 in Austria

#40,882 in the World

Maschinenfabrik Andritz Aktiengesellschaft

Forward Citations = 82

24 inventors:

Rupert Syrowatka (4 out of 8 patents)

Johannes Kappel (3 out of 13 patents)

Johann Lileg (2 out of 4 patents)

4. Emmerich Bernhard (2 out of 4 patents)

5. Dag Bergloff (2 out of 8 patents)

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