% Expired Patents = 60.0

CIPO Patents = 2

EPO Patents = 7

Forward Citations = 10

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3 inventors (with patents filed for the assignee):

Johan Olsson (4 out of 9 patents)

Jorgen Bengtsson (1 out of 10 patents)

Tim Olsson (1 out of 1 patent)

4. Jörgen Bengtsson (5 patents)

5. Bert Gustafsson (9 patents)

6. Lars-Åke Andersson (3 patents)

7. Jakob Ängeby (0 patent)

8. Johan Olsson (0 patent)

9. Tim Olsson (0 patent)

5 patents: Sort by Forward Citations

1. 9243602 - Ignition system control method and system (2016-01-26),

2. 8713992 - Device and method for analysing a performance of an engine (2014-05-06),

3. 8490609 - System for energy support in a CDI system (2013-07-23),

4. 7953543 - Device and method for communication between a control system for small internal combustion engines and an external computer (2011-05-31),

5. 7712458 - Method and apparatus for raising the spark energy in capacitive ignition systems (2010-05-11),

Company Overview

Sem Aktiebolag is a Swedish company specializing in innovative technology solutions for the transportation and logistics industry. With a focus on efficiency and sustainability, Sem Aktiebolag offers a range of cutting-edge products and services to optimize supply chain operations and reduce environmental impact. Their team of experienced professionals is dedicated to delivering high-quality solutions tailored to meet the unique needs of each client.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#5 in Amal

#1,098 in Sweden

Amal, Sweden

Sem Aktiebolag

Forward Citations = 10

3 inventors:

Johan Olsson (4 out of 9 patents)

Jorgen Bengtsson (1 out of 10 patents)

Tim Olsson (1 out of 1 patent)

4. Jörgen Bengtsson (5 patents)

5. Bert Gustafsson (9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sem Aktiebolag. Retrieved from https://idiyas.com/company/sem-aktiebolag

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]

2 patents (CIPO):

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]

7 patents (EPO):

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]