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Hannover, Germany

Hermann Berstorff Maschinenbau Gmbh

USPTO Granted Patents = 190

CIPO Patents = 4

Trademarks = 2

Forward Citations = 2,088

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94 inventors (with patents filed for the assignee):

Dietmar Anders (31 out of 31 patents)

Gerd Capelle (27 out of 28 patents)

Klaus Koch (22 out of 22 patents)

4. Wilhelm Brand (13 out of 13 patents)

5. Rolf Gersbeck (12 out of 12 patents)

6. Manfred Dienst (10 out of 10 patents)

7. Gerhard Syrbius (10 out of 10 patents)

8. Heinz Brinkmann (8 out of 8 patents)

9. Siegfried Chszaniecki (7 out of 7 patents)

10. Adolf Herbert (7 out of 7 patents)

11. Jurgen Voigt (6 out of 6 patents)

12. Klaus-Dieter Kolossow (6 out of 6 patents)

13. Werner Pawelczyk (5 out of 5 patents)

14. Hans-Joachim Schaeffer (5 out of 5 patents)

15. Wolfgang Heise (4 out of 4 patents)

Core Competencies:

Gear Extruder

Multiple Extrusion Head

Pelletizing Plastics

Thermoplastic Processing

Continuous Production

High-Performance Extruder

Chipboard Production

Degassing Extruder

Thermoplastic Foam Profiles

Calender Assembly

Uniform Conveying Pressure

Microwave Heating

190 patents: Sort by Forward Citations

1. 6531079 - Gear extruder having gas vent ports (2003-03-11),

2. 6361200 - Gear extruder having gas vent ports (2002-03-26),

3. 6213748 - Multiple extrusion head for the production of profiles, in particular for tire production (2001-04-10),

4. 6158883 - Gear extruder having gas vent ports (2000-12-12),

5. 5911783 - Adjusting device for the rolls of a calendar (1999-06-15),

6. 5587186 - Apparatus for pelletizing plastics (1996-12-24),

7. 5567370 - Process for the production of TPE foam profiles for the building and (1996-10-22),

8. 5490725 - Melt-sealing device for extruders for the processing of thermoplastic (1996-02-13),

9. 5464363 - Polishing stack for thermoplastic films or sheets (1995-11-07),

10. 5463946 - Continuously operating material press with lubricating film for reducing (1995-11-07),

11. 5440104 - Process for a uniform heating, pasteurization and sterilization of (1995-08-08),

12. 5358693 - Method and apparatus for the single-stage continuous production of a (1994-10-25),

13. 5324183 - Apparatus for producing a controllable, uniform conveying pressure for (1994-06-28),

14. 5320036 - Continuously operating material press (1994-06-14),

15. 5302635 - Method and arrangement for the single-stage continuous production of a (1994-04-12),

Hermann Berstorff Maschinenbau GmbH is a renowned manufacturer of extrusion and compounding technologies. With a rich history spanning over 150 years, the company offers cutting-edge machinery and solutions for the plastics and rubber processing industries. Berstorff's innovative products are known for their exceptional quality, reliability, and efficiency. The company continuously strives for technological advancements and provides comprehensive services, including consultation, customization, and after-sales support.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

190 Patents

#8 in Hannover

#350 in Germany

#4,299 in the World

Hannover, Germany

Hermann Berstorff Maschinenbau Gmbh

Forward Citations = 2,088

94 inventors:

Dietmar Anders (31 out of 31 patents)

Gerd Capelle (27 out of 28 patents)

Klaus Koch (22 out of 22 patents)

4. Wilhelm Brand (13 out of 13 patents)

5. Rolf Gersbeck (12 out of 12 patents)

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