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Uppsala, Sweden

Dirac Research Ab

USPTO Granted Patents = 16

% Expired Patents = 12.5

EPO Patents = 7

Trademarks = 5

Forward Citations = 52

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17 inventors (with patents filed for the assignee):

Lars-Johan Brännmark (6 out of 6 patents)

Anders Ahlen (5 out of 5 patents)

Adrian Bahne (3 out of 3 patents)

4. Mikael Sternad (3 out of 3 patents)

5. Johannes Röjder (2 out of 2 patents)

6. Mattias Arlbrant (2 out of 2 patents)

7. Jakob Ågren (2 out of 2 patents)

8. Viktor Gunnarsson (2 out of 2 patents)

9. Pedro Højen-Sørensen (1 out of 2 patents)

10. Morten Rolle Hansen (1 out of 12 patents)

11. Simon Widmark (1 out of 1 patent)

12. Søren Skovgaard Christensen (1 out of 7 patents)

13. Nilo Casimiro Ericsson (1 out of 1 patent)

14. Sead Smailagic (1 out of 8 patents)

15. Mathias Johansson (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 12432517 - HRTF pre-processing for audio applications (2025-09-30),

2. 12254863 - Method and system for generating harmonics as well as an amplitude proportional harmonics unit for virtual bass systems (2025-03-18),

3. 11800309 - Bass management in audio systems (2023-10-24),

4. 11349447 - Generating harmonics in an audio system (2022-05-31),

5. 11246000 - Audio precompensation filter optimized with respect to bright and dark zones (2022-02-08),

6. 11038482 - Parametric equalization for audio applications (2021-06-15),

7. 10715945 - Methods and systems for determining and/or using an audio filter based on head-tracking data (2020-07-14),

8. 10638227 - Processing of an audio input signal (2020-04-28),

9. 10284995 - Reducing the phase difference between audio channels at multiple spatial positions (2019-05-07),

10. 10251015 - Personal multichannel audio controller design (2019-04-02),

11. 9781510 - Audio precompensation controller design using a variable set of support loudspeakers (2017-10-03),

12. 9706327 - Audio decoder configured to convert audio input channels for headphone listening (2017-07-11),

13. 9426600 - Audio precompensation controller design with pairwise loudspeaker channel similarity (2016-08-23),

14. 8213637 - Sound field control in multiple listening regions (2012-07-03),

15. 8194885 - Spatially robust audio precompensation (2012-06-05),

Company Overview

Dirac Research AB, based in Uppsala, Sweden, specializes in advanced audio technology and digital signal processing. The company is renowned for its innovative solutions that enhance sound quality across various applications, including consumer electronics, automotive systems, and professional audio equipment. Dirac's research focuses on creating immersive audio experiences through proprietary algorithms and software, positioning the company as a leader in the field of audio engineering and technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#23 in Uppsala

#407 in Sweden

#37,788 in the World

Uppsala, Sweden

Dirac Research Ab

Forward Citations = 52

17 inventors:

Lars-Johan Brännmark (6 out of 6 patents)

Anders Ahlen (5 out of 5 patents)

Adrian Bahne (3 out of 3 patents)

4. Mikael Sternad (3 out of 3 patents)

5. Johannes Röjder (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dirac Research Ab. Retrieved from https://idiyas.com/company/dirac-research-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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