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Hamburg, Germany

Polygram Gmbh

USPTO Granted Patents = 17

Trademarks = 1

Forward Citations = 323

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25 inventors (with patents filed for the assignee):

Bjoern Bluethgen (3 out of 3 patents)

Hermann Koop (2 out of 12 patents)

Horst Soeding (2 out of 2 patents)

4. Adelbert Zielasek (2 out of 2 patents)

5. Frederik B Nusselder (2 out of 2 patents)

6. Hermann Grobecker (1 out of 11 patents)

7. Werner Heuer (1 out of 3 patents)

8. Horst-Christian Langowski (1 out of 3 patents)

9. Bjorn Bluthgen (1 out of 5 patents)

10. Harald Ahrens (1 out of 2 patents)

11. Klaus Hiemann (1 out of 1 patent)

12. Jost-Michael Haase (1 out of 1 patent)

13. Frank A Griffiths (1 out of 1 patent)

14. Joseph R Hankinson (1 out of 1 patent)

15. Joahann Becker (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 4874085 - Storage cassette for high storage density, disc-shaped information (1989-10-17),

2. 4665513 - Arrangement for error detection for disc-shaped information carriers (1987-05-12),

3. 4658392 - Optically readable, high storage density, information carrier (1987-04-14),

4. 4633458 - Disc-shaped, optically-readable information carrier having a protective (1986-12-30),

5. 4613751 - Conveyor system for disc magazine having an identifier disc (1986-09-23),

6. 4535888 - Storage cassette for two or more disk-shaped high memory density (1985-08-20),

7. 4501014 - Method for eliminating unwanted acoustic signals in audio programs to be (1985-02-19),

8. 4453158 - Method for encoding analog signals (1984-06-05),

9. 4445149 - Method for the joining, or mixing-in or fade-in of two audio digital (1984-04-24),

10. 4438522 - Method for encoding analog signals using PCM difference code word for (1984-03-20),

11. 4409169 - Method for manufacturing disk-shaped information carriers (1983-10-11),

12. 4367952 - Centering device for the manufacture of a center hole in disks (1983-01-11),

13. 4361898 - Digital synchronizing system (1982-11-30),

14. 4342635 - Anode case for a galvanic bath (1982-08-03),

15. 4272990 - Device for the measurement of acoustic reverberation time and method (1981-06-16),

Polygram GmbH is a German-based company specializing in the manufacturing and distribution of polymer products. With a strong focus on quality and innovation, Polygram offers a wide range of products such as plastic sheets, rods, and tubes for various industries including automotive, construction and electronics. With decades of experience in the industry, Polygram is a trusted partner for companies looking for reliable and high-quality polymer solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#52 in Hamburg

#2,499 in Germany

#34,819 in the World

Hamburg, Germany

Polygram Gmbh

Forward Citations = 323

25 inventors:

Bjoern Bluethgen (3 out of 3 patents)

Hermann Koop (2 out of 12 patents)

Horst Soeding (2 out of 2 patents)

4. Adelbert Zielasek (2 out of 2 patents)

5. Frederik B Nusselder (2 out of 2 patents)

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