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Sem Ab

USPTO Granted Patents = 24

EPO Patents = 5

Forward Citations = 50

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20 inventors (with patents filed for the assignee):

Bert Gustafsson (7 out of 9 patents)

Jorgen Bengtsson (6 out of 10 patents)

Jörgen Bengtsson (4 out of 5 patents)

4. Lars-Olof Ottosson (4 out of 4 patents)

5. Jakob Angeby (3 out of 3 patents)

6. Lars-Åke Andersson (3 out of 3 patents)

7. Johan Kihlberg (2 out of 2 patents)

8. Wilgot ANGhs (2 out of 3 patents)

9. Lars Svensson (1 out of 2 patents)

10. Mats Andren (1 out of 1 patent)

11. Jakob Olofsson Ängeby (1 out of 3 patents)

12. Sven Jörgen Peder Bengtsson (1 out of 1 patent)

13. Johan Eklund (1 out of 1 patent)

14. Tomas Karlsson (1 out of 1 patent)

15. Göran Almkvist (1 out of 2 patents)

24 patents: Sort by Forward Citations

1. 12392310 - Ignition coil assembly for combustion engine (2025-08-19),

2. 12368306 - Battery assembly with controllable voltage and method related thereto (2025-07-22),

3. 12173678 - Ignition system and method controlling spark ignited combustion engines (2024-12-24),

4. 11560869 - Electronic circuit and capacitor discharge system comprising electronic circuit (2023-01-24),

5. 11225939 - Spark plug extension (2022-01-18),

6. 10989160 - Method for monitoring combustion processes in a combustion engine (2021-04-27),

7. 10288032 - Method for monitoring combustion processes in a combustion engine (2019-05-14),

8. 10164410 - Spark plug extension (2018-12-25),

9. 9945751 - Engine management using knock data (2018-04-17),

10. 9945303 - System and method for controlling the performance of an engine (2018-04-17),

11. 9810191 - Engine for vehicle using alternative fuels (2017-11-07),

12. 9651453 - Method for monitoring combustion processes in a combustion engine (2017-05-16),

13. 9353723 - Ignition system including a measurement device for providing measurement signals to a combustion engine's control system (2016-05-31),

14. D726112 - Spark plug extension (2015-04-07),

15. 6814055 - Magnetic ignition system (2004-11-09),

SEM AB is a leading provider of software solutions for the energy industry. With over 20 years of experience, we specialize in developing innovative software products and services for energy trading, risk management, and optimization. Our solutions are used by major energy companies worldwide to streamline their operations, improve decision-making, and enhance profitability. Visit our website to learn more about our comprehensive range of energy software solutions.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

24 Patents

#1 in Amal

#255 in Sweden

#25,836 in the World

Sem Ab

Forward Citations = 50

20 inventors:

Bert Gustafsson (7 out of 9 patents)

Jorgen Bengtsson (6 out of 10 patents)

Jörgen Bengtsson (4 out of 5 patents)

4. Lars-Olof Ottosson (4 out of 4 patents)

5. Jakob Angeby (3 out of 3 patents)

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