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Krefeld, Germany

Kleinewefers Gmbh

USPTO Granted Patents = 59

Forward Citations = 667

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48 inventors (with patents filed for the assignee):

Josef Pav (28 out of 32 patents)

Reinhard Wenzel (14 out of 26 patents)

Richard Rauf (10 out of 11 patents)

4. Dieter Junk (5 out of 12 patents)

5. Jurgen Schlunke (5 out of 6 patents)

6. Gerhard Hartwich (5 out of 6 patents)

7. Rolf Van Haag (4 out of 41 patents)

8. Franz Kayser (4 out of 35 patents)

9. Gunter Schiffer (4 out of 10 patents)

10. Peter Svenka (3 out of 15 patents)

11. Stephan Piesen (3 out of 3 patents)

12. Hans-Rolf Conrad (2 out of 20 patents)

13. Jakob Hannen (2 out of 8 patents)

14. Rudolf Vossmerbaumer (2 out of 2 patents)

15. Hans Bresser (2 out of 2 patents)

Core Competencies:

Calender

Safety Device

Cooling Apparatus

Pressure Roll

Roll Assembly

Electromagnetic Heating

Textile Treatment

Web Processing

Magazine for Rolls

Cleaning Apparatus

Convoluted Paper

Rapid-Separation Arrangement

59 patents: Sort by Forward Citations

1. 5439366 - Safety device for a roll space of a calender or similar roll machine (1995-08-08),

2. 5289766 - Apparatus for cooling calender rolls and the like (1994-03-01),

3. 5241903 - Guard for the nips of rolls in calenders and the like (1993-09-07),

4. 5208956 - Roll for use in calenders and like machines (1993-05-11),

5. 5206978 - Hydrostatic roll for use in calenders (1993-05-04),

6. 5111564 - Heatable roll for use in calenders and the like (1992-05-12),

7. 5063649 - Roll assembly with rotatable shell for use in calenders and like machines (1991-11-12),

8. 5042373 - Guard for the nips of rolls in calenders and like machines (1991-08-27),

9. 5033317 - Apparatus for ascertaining the magnitude of stresses upon the bearings (1991-07-23),

10. 5029521 - Calender and method of operating the same (1991-07-09),

11. 5024718 - Label applying apparatus (1991-06-18),

12. 4964202 - Heatable roll for use in calenders and the like (1990-10-23),

13. 4958478 - Apparatus for storing and supplying end closures for envelopes of (1990-09-25),

14. 4941607 - Magazine for calender rolls (1990-07-17),

15. 4932827 - Apparatus for exchanging rolls in calenders (1990-06-12),

Kleinewefers GmbH, headquartered in Krefeld, Germany, specializes in calendering technology, focusing on the development and manufacturing of advanced calenders and associated equipment. The company is recognized for its expertise in safety devices, cooling apparatus, pressure rolls, and roll assemblies, which are essential in various industrial applications. Additionally, Kleinewefers is involved in innovative solutions for electromagnetic heating, textile treatment, and web processing, catering to diverse sectors that require precision and efficiency in material processing.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

59 Patents

#8 in Krefeld

#930 in Germany

#12,219 in the World

Krefeld, Germany

Kleinewefers Gmbh

Forward Citations = 667

48 inventors:

Josef Pav (28 out of 32 patents)

Reinhard Wenzel (14 out of 26 patents)

Richard Rauf (10 out of 11 patents)

4. Dieter Junk (5 out of 12 patents)

5. Jurgen Schlunke (5 out of 6 patents)

Please report any incorrect information to [email protected]

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