CIPO Patents = 1

Forward Citations = 131

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13 inventors (with patents filed for the assignee):

Manfred Gehrig (2 out of 8 patents)

Graham Love (2 out of 2 patents)

Karl Schellhaass (2 out of 3 patents)

4. Barbel Rathjen (2 out of 2 patents)

5. Jurgen Schwarz (2 out of 2 patents)

6. Otto G Vitzthum (1 out of 5 patents)

7. Klaus D Koch (1 out of 4 patents)

8. Manfred Barthels (1 out of 2 patents)

9. Peter Werkhoff (1 out of 3 patents)

10. Hans Wienges (1 out of 1 patent)

11. Helmut Sieling (1 out of 1 patent)

12. Johann Brunssen (1 out of 1 patent)

13. Jochen Wilkens (1 out of 1 patent)

14. Heinrich Seekamp (1 patent)

15. Henry Tappermann (0 patent)

6 patents: Sort by Forward Citations

1. 5082676 - Coffee cassette (1992-01-21),

2. 4996066 - Beverage flavoring cassette (1991-02-26),

3. 4673743 - Process for separating caffeine from caffeine-loaded active carbon (1987-06-16),

4. 4603492 - Insert container for freeze-drying plants (1986-08-05),

5. 4540784 - Recovery of caffeine adsorbed to activated carbon (1985-09-10),

6. 4506072 - Regeneration of caffeine-loaded activated carbon with hot water (1985-03-19),

Company Overview

Hag Gf Aktiengesellschaft is a leading provider of innovative solutions for the automotive industry. With a focus on sustainability and cutting-edge technology, we specialize in producing high-quality components for electric vehicles. Our team of experts is dedicated to delivering top-notch products and services to our clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#29 in Bremen

#5,401 in Germany

Bremen, Germany

Hag Gf Aktiengesellschaft

Forward Citations = 131

13 inventors:

Manfred Gehrig (2 out of 8 patents)

Graham Love (2 out of 2 patents)

Karl Schellhaass (2 out of 3 patents)

4. Barbel Rathjen (2 out of 2 patents)

5. Jurgen Schwarz (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hag Gf Aktiengesellschaft. Retrieved from https://idiyas.com/company/hag-gf-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]

1 patent (CIPO):

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]