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For the Inventor, By the Inventor

Châtel-Saint-Denis, Switzerland

Allseas Group S.a.


USPTO Granted Patents = 16


Trademarks = 1

Forward Citations = 128

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20 inventors (with patents filed for the assignee):

goldMedal Maarten Willem Kastelein (3 out of 3 patents)

silverMedal Gerardus Maria Kramer (3 out of 3 patents)

bronzeMedal Klaas Boudewijn Van Gelder (3 out of 3 patents)

4.  Jacobus Cornelis Wijsman (2 out of 2 patents)

5.  Robert Paul Hovinga (2 out of 3 patents)

6.  Albert Ploeg (2 out of 2 patents)

7.  Erik Jan Rooduijn (2 out of 2 patents)

8.  Johannes John Drost (2 out of 2 patents)

9.  Joop Roodenburg (1 out of 220 patents)

10.  André Luur Jan Steenhuis (1 out of 3 patents)

11.  Jeroen Regelink (1 out of 1 patent)

12.  Peter-Paul Maria Kuppers (1 out of 1 patent)

13.  Anne Klaas De Groot (1 out of 3 patents)

14.  Piet Kalkman (1 out of 3 patents)

15.  Arnold Andries Van Den Dool (1 out of 1 patent)


16 patents:

1. 9796036 - Guide device for welding curvilinear pipe surfaces (2017-10-24),
2. 8481882 - Guide device for welding curvilinear pipe surfaces (2013-07-09),
3. 7621697 - Abandonment and recovery system and method, and cable connector (2009-11-24),
4. 6737601 - Method and device for welding together two bodies (2004-05-18),
5. 6715963 - Device and method for laying a pipeline on a seabed (2004-04-06),
6. 6439807 - Method and apparatus for underwater connection of pipe pieces and bolt therefor (2002-08-27),
7. 6390731 - Apparatus for laying a pipeline in deep water (2002-05-21),
8. 6260252 - Method and apparatus for assembling or disassembling an installation present on a seabed (2001-07-17),
9. 6171028 - Device and method for lifting a sea-going structure, for instance a drilling platform (2001-01-09),
10. 6132143 - Method for lifting a sea platform from the substructure (2000-10-17),
11. 5944248 - Apparatus for processing curved surfaces (1999-08-31),
12. 5829919 - Method and installation for removing a superstructure (1998-11-03),
13. 5823712 - Method and installation for laying a pipeline on a surface located under (1998-10-20),
14. 5797702 - Installation for laying a pipeline on a floor located under water, (1998-08-25),
15. 5588780 - Method and installation for laying a pipe-line (1996-12-31),
Company Overview
Allseas Group S.a. is a prominent engineering and construction company specializing in offshore pipeline installation and subsea services. Headquartered in Châtel-Saint-Denis, Switzerland, the company is recognized for its innovative approaches in the energy sector, particularly in oil and gas. Allseas employs advanced technology and engineering solutions to execute complex projects, focusing on sustainability and efficiency in marine operations. Its expertise extends across various geographical regions, contributing to significant developments in offshore infrastructure.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

16 Patents

#1 in Châtel-Saint-Denis

#763 in Switzerland

#37,831 in the World

Châtel-Saint-Denis, CH
Châtel-Saint-Denis, Switzerland

Allseas Group S.a.

Forward Citations = 128

20 inventors:

goldMedal Maarten Willem Kastelein (3 out of 3 patents)

silverMedal Gerardus Maria Kramer (3 out of 3 patents)

bronzeMedal Klaas Boudewijn Van Gelder (3 out of 3 patents)

4.  Jacobus Cornelis Wijsman (2 out of 2 patents)

5.  Robert Paul Hovinga (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Allseas Group S.a.. Retrieved from https://idiyas.com/company/allseas-group-s-a

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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