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Gefrees, Germany

Helsa-werke Helmut Sandler Gmbh & Co. Kg

USPTO Granted Patents = 10

Forward Citations = 219

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15 inventors (with patents filed for the assignee):

Klaus Smolik (4 out of 4 patents)

Gerald Rosenberg (2 out of 2 patents)

Regina Hoffmann (2 out of 2 patents)

4. Wolfgang Heschel (1 out of 4 patents)

5. Thomas Wolff (1 out of 2 patents)

6. Manfred Krull (1 out of 2 patents)

7. Uwe Krull (1 out of 1 patent)

8. Martina Robisch (1 out of 1 patent)

9. Dirk Müller (1 out of 1 patent)

10. Kerstin Bottger (1 out of 1 patent)

11. Hermann Wolfrum (1 out of 1 patent)

12. Peter Stocker (1 out of 1 patent)

13. Karin Hobbs (1 out of 1 patent)

14. Thorsten Keibel (1 out of 1 patent)

15. Anna-Maria Weiss (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 6699561 - Activated carbon molded body and use thereof (2004-03-02),

2. 6423123 - Filtering material for fluidic media and a method and device for producing such a filtering material (2002-07-23),

3. 6300466 - Production of activated carbon from polymers with aromatic nuclei (2001-10-09),

4. 6083857 - Surface element (2000-07-04),

5. 6004495 - Method of producing an adsorber filter body (1999-12-21),

6. 5769992 - Process for the production of flexible surface filter material for (1998-06-23),

7. 5603753 - Filter device having elongate absorber particles fixed to a flat carrier (1997-02-18),

8. 5334436 - Flexible material including active particles, process for the production (1994-08-02),

9. 4883052 - Protective breathing mask (1989-11-28),

10. 4800190 - Filter material and process for the production thereof (1989-01-24),

Helsa-werke Helmut Sandler GmbH & Co. KG is a leading manufacturer of innovative textile solutions. With a strong focus on quality and sustainability, the company offers a wide range of products including interlinings, medical textiles, and specialty fabrics. Since its establishment in 1922, Helsa has been committed to providing high-performance textiles for various industries worldwide.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

10 Patents

#1 in Gefrees

#3,713 in Germany

#54,271 in the World

Gefrees, Germany

Helsa-werke Helmut Sandler Gmbh & Co. Kg

Forward Citations = 219

15 inventors:

Klaus Smolik (4 out of 4 patents)

Gerald Rosenberg (2 out of 2 patents)

Regina Hoffmann (2 out of 2 patents)

4. Wolfgang Heschel (1 out of 4 patents)

5. Thomas Wolff (1 out of 2 patents)

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