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Hamburg, Georgia

Howaldtswerke-deutsche Werft Aktiengesellschaft Hamburg Und Kiel

USPTO Granted Patents = 17

Trademarks = 2

Forward Citations = 159

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21 inventors (with patents filed for the assignee):

Gunter E Pietsch (4 out of 16 patents)

Gerhard H Walter (2 out of 2 patents)

Arnfried Preuss (2 out of 2 patents)

4. Gerhard Kuhl (2 out of 2 patents)

5. Detlef G Luth (1 out of 1 patent)

6. Heinz W Steenken (1 out of 1 patent)

7. Gerhard W Walter (1 out of 1 patent)

8. Gunter W Pietsch (1 out of 1 patent)

9. Donald Wentworth (1 out of 1 patent)

10. Uwe Naeve (1 out of 1 patent)

11. Hans Kather (1 out of 1 patent)

12. Peter Stelck (1 out of 1 patent)

13. Harry Lassen (1 out of 1 patent)

14. Walter M Kollenberger, Deceased (1 out of 1 patent)

15. Hans-Gunther Molsberger (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 4493857 - Method for applying a coating to a thin board (1985-01-15),

2. 4448425 - Shaft seal assembly with inflatable annular member (1984-05-15),

3. 4413830 - Seal assembly for rotating shafts (1983-11-08),

4. 4413829 - Shaft sealing assembly (1983-11-08),

5. 4395141 - Bearing and seal assembly for stern tubes of vessels (1983-07-26),

6. 4284025 - Rudder arrangement for ships (1981-08-18),

7. 4199276 - Offshore lift platform (1980-04-22),

8. 4161154 - Stabilizing device for ships (1979-07-17),

9. 4078666 - Supplementary jib for a floating crane having a derricking main jib (1978-03-14),

10. 4078665 - Floating crane comprising a main jib which can be deposited on deck (1978-03-14),

11. 4069872 - Method of and device for extinguishing burning gases (1978-01-24),

12. 4044613 - Direct reading temperature measuring bridge circuit (1977-08-30),

13. 4008897 - Seals for rotating shafts, especially for stern tube seals for ships (1977-02-22),

14. 4001669 - Compensating bridge circuit (1977-01-04),

15. 3976534 - Device for use in uniting the adjacent ends of radially split sealing (1976-08-24),

Howaldtswerke-Deutsche Werft Aktiengesellschaft (HDW) is a German shipyard specialising in naval and commercial shipbuilding. With locations in Hamburg and Kiel, the company has a long history of producing submarines and surface vessels for customers around the world. HDW is known for its innovative designs and cutting-edge technology in the maritime industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

17 Patents

#2 in Hamburg

#18 in Georgia

#34,834 in the World

Hamburg, Georgia

Howaldtswerke-deutsche Werft Aktiengesellschaft Hamburg Und Kiel

Forward Citations = 159

21 inventors:

Gunter E Pietsch (4 out of 16 patents)

Gerhard H Walter (2 out of 2 patents)

Arnfried Preuss (2 out of 2 patents)

4. Gerhard Kuhl (2 out of 2 patents)

5. Detlef G Luth (1 out of 1 patent)

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