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Regensdorf, Switzerland

Gretag Imaging Ag

USPTO Granted Patents = 48

Forward Citations = 138

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42 inventors (with patents filed for the assignee):

Beat Frick (12 out of 40 patents)

Hugo Knecht (6 out of 8 patents)

Walter Kraft (6 out of 18 patents)

4. Martin Heller (4 out of 4 patents)

5. Jurg Kunz (4 out of 4 patents)

6. Peter Zolliker (3 out of 5 patents)

7. Rudolf Wacker (3 out of 3 patents)

8. Guido Keller (2 out of 4 patents)

9. Edmund Fendt (2 out of 2 patents)

10. Albert Dünner (2 out of 2 patents)

11. Rudolf Ackermann (2 out of 2 patents)

12. Erich Binder (2 out of 2 patents)

13. Reinhard Vogel (1 out of 9 patents)

14. Hansjörg Rotach (1 out of 4 patents)

15. Paul Schenkel (1 out of 2 patents)

Core Competencies:

Digital Image Processing

Photographic Prints

Photofinishing

Optical Reproduction

Photoelectric Scanning

Film Processing

Copying Apparatus

Material Guiding

Storage Devices

Photographic Originals

Cutting Arrangement

Recording Drum

48 patents: Sort by Forward Citations

1. 6813047 - Digital image processing system for the manufacture of photographic prints (2004-11-02),

2. 6575449 - Photographic material guiding arrangement (2003-06-10),

3. 6341008 - Photographic copier (2002-01-22),

4. 6338452 - Centering photographic material spooling device (2002-01-15),

5. 6270029 - Spiral storage (2001-08-07),

6. 6268901 - Photoelectric scanning device and copier equipped therewith (2001-07-31),

7. 6267283 - Storage device for photographic material (2001-07-31),

8. 6246462 - Apparatus for producing photographic copies (2001-06-12),

9. 6216975 - Processing arrangement for rolled up material (2001-04-17),

10. 6204871 - Recording drum arrangement (2001-03-20),

11. 6202527 - Cutting arrangement for a material web (2001-03-20),

12. 6177981 - Loading arrangement and film platform for APS film (2001-01-23),

13. 6163363 - Photofinishing utilizing modulated light source array (2000-12-19),

14. 6163362 - Photo lab with transport arrangement (2000-12-19),

15. 6127103 - Process for the manufacture of photographic pictures (2000-10-03),

Company Overview

Gretag Imaging AG, based in Regensdorf, Switzerland, specializes in advanced digital image processing and photofinishing technologies. The company focuses on developing innovative solutions for photographic material and optical reproduction, catering to both professional and consumer markets. Its expertise encompasses photoelectric scanning, photographic printing, and the preparation of film strips, positioning Gretag as a key player in the imaging industry, dedicated to enhancing the quality and efficiency of photographic processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

48 Patents

#2 in Regensdorf

#305 in Switzerland

#14,536 in the World

Regensdorf, Switzerland

Gretag Imaging Ag

Forward Citations = 138

42 inventors:

Beat Frick (12 out of 40 patents)

Hugo Knecht (6 out of 8 patents)

Walter Kraft (6 out of 18 patents)

4. Martin Heller (4 out of 4 patents)

5. Jurg Kunz (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gretag Imaging Ag. Retrieved from https://idiyas.com/company/gretag-imaging-ag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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