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Corovin Gmbh

USPTO Granted Patents = 17

% Expired Patents = 5.9

Forward Citations = 235

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24 inventors (with patents filed for the assignee):

Stefan Etzold (4 out of 4 patents)

Gerhard Knitsch (4 out of 5 patents)

Kurt Mente (3 out of 7 patents)

4. Axel Nickel (2 out of 2 patents)

5. Heinz-Horst Boich (2 out of 3 patents)

6. Heinz-H Boich (2 out of 2 patents)

7. Ivo Ruzek (1 out of 13 patents)

8. Mathias Muth (1 out of 4 patents)

9. Ralf Sodemann (1 out of 4 patents)

10. Axel Richter (1 out of 2 patents)

11. Joachim Bauer (1 out of 1 patent)

12. Peter Coles (1 out of 24 patents)

13. Michel Degrand (1 out of 8 patents)

14. Hans Bader (1 out of 1 patent)

15. Walter Bruckner (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 7192392 - Thermobonded and perforated nonwoven (2007-03-20),

2. 6750166 - Method for producing a non-woven fibre fabric (2004-06-15),

3. 6632313 - Centralized process for the manufacture of a spunbonded fabric of thermobonded curled bicomponent fibers (2003-10-14),

4. 6312545 - Method for producing a spunbonded fabric from thermobonded crimped bicomponent fibers (2001-11-06),

5. 5939178 - Process for producing a multilayered elastic sheetlike structure; as (1999-08-17),

6. 5908412 - Coated non-woven material, its making process and its use in a (1999-06-01),

7. 5855992 - Waterproof multi-layered non-woven fabric of reduced weight having good (1999-01-05),

8. 5766288 - Multilayered deep-bed filter material (1998-06-16),

9. 5685757 - Fibrous spun-bonded non-woven composite (1997-11-11),

10. 5683787 - Multilayered elastic sheet structure and process for producing a (1997-11-04),

11. 5456971 - Covering web having discrete regions possessing different drainage (1995-10-10),

12. 5310514 - Process and spinning device for making microfilaments (1994-05-10),

13. 5045271 - Process for the production of irregular non-woven material sheets (1991-09-03),

14. 4999080 - Apparatus for producing a nonwoven fabric from continuous filaments (1991-03-12),

15. 4902366 - Process and apparatus for bonding and embossing sheet materials, (1990-02-20),

Corovin GmbH, based in Peine, Germany, specializes in innovative solutions for the construction and real estate sectors. The company focuses on developing advanced technologies that enhance building processes and improve efficiency in project management. With a commitment to sustainability and digital transformation, Corovin integrates modern software tools and methodologies to streamline workflows and optimize resource utilization. Their expertise spans various aspects of construction technology, positioning them as a key player in the industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

17 Patents

#3 in

#2,493 in Germany

#35,887 in the World

Corovin Gmbh

Forward Citations = 235

24 inventors:

Stefan Etzold (4 out of 4 patents)

Gerhard Knitsch (4 out of 5 patents)

Kurt Mente (3 out of 7 patents)

4. Axel Nickel (2 out of 2 patents)

5. Heinz-Horst Boich (2 out of 3 patents)

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