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For the Inventor, By the Inventor

Skövde, Sweden

Cejn Ab


USPTO Granted Patents = 18

% Expired Patents = 5.6


Trademarks = 3

Forward Citations = 66

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20 inventors (with patents filed for the assignee):

goldMedal Jörgen Ekström (6 out of 7 patents)

silverMedal Jonas Eriksson (3 out of 3 patents)

bronzeMedal Lena Henåker (3 out of 3 patents)

4.  Anna-Lena Olsson (3 out of 3 patents)

5.  Jonas Olausson (2 out of 2 patents)

6.  Leif Nyfelt (2 out of 10 patents)

7.  Frank Rottgardt (2 out of 2 patents)

8.  Anders Lunnerhag (1 out of 1 patent)

9.  Filip Åkesson (1 out of 1 patent)

10.  Peter Bohman (1 out of 1 patent)

11.  Katsumi Tomioka (1 out of 7 patents)

12.  Toshihiko Onishi (1 out of 3 patents)

13.  Yuji Kondo (1 out of 2 patents)

14.  Masaaki Inoue (1 out of 1 patent)

15.  Morio Wakita (1 out of 1 patent)


18 patents:

1. 12768481 - Coupling and method for assembling the same (2026-10-20),
2. 12480609 - System and method for centralizing a quick connect nipple (2025-11-25),
3. 12320458 - Nipple with relief valve (2025-06-03),
4. 12292139 - Adapter and method for connecting (2025-05-06),
5. 11788915 - Pulse counter (2023-10-17),
6. 11788659 - Locking mechanism for quick connect coupling (2023-10-17),
7. 11168820 - Assembly of a coupling and a stiff tube and method therefore (2021-11-09),
8. 10938137 - Multicoupling with control means (2021-03-02),
9. 10562735 - Stop ball (2020-02-18),
10. 10473251 - Multi quick connector for subsea use (2019-11-12),
11. 9759349 - Tube with tag and method for servicing the tube (2017-09-12),
12. 9551448 - Coupling designed for pressure-relieved coupling (2017-01-24),
13. 9404611 - Quick coupling for pipes/hoses with locking feature (2016-08-02),
14. 8807602 - Fluid coupling assembly (2014-08-19),
15. D681784 - Hydraulic coupling (2013-05-07),
Company Overview
Cejn Ab, headquartered in Skövde, Sweden, specializes in the development and manufacturing of high-quality fluid and gas handling solutions. The company is recognized for its innovative coupling systems, which are widely used in various industries including automotive, manufacturing, and construction. Cejn's commitment to research and technology drives advancements in safety, efficiency, and sustainability, positioning the company as a leader in the global market for fluid control solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

18 Patents

#2 in Skövde

#365 in Sweden

#34,244 in the World

Skövde, SE
Skövde, Sweden

Cejn Ab

Forward Citations = 66

20 inventors:

goldMedal Jörgen Ekström (6 out of 7 patents)

silverMedal Jonas Eriksson (3 out of 3 patents)

bronzeMedal Lena Henåker (3 out of 3 patents)

4.  Anna-Lena Olsson (3 out of 3 patents)

5.  Jonas Olausson (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cejn Ab. Retrieved from https://idiyas.com/company/cejn-ab

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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