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For the Inventor, By the Inventor

Oslo, Norway

Sonitor Technologies as


USPTO Granted Patents = 67

% Expired Patents = 3.0



Trademarks = 3

Forward Citations = 303

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28 inventors (with patents filed for the assignee):

goldMedal Wilfred Edwin Booij (58 out of 67 patents)

silverMedal Cyril Antille (14 out of 14 patents)

bronzeMedal Endre Bakka (13 out of 14 patents)

4.  Oystein Haug Olsen (9 out of 9 patents)

5.  Sverre Holm (6 out of 9 patents)

6.  Magnus Oplenskedal (5 out of 6 patents)

7.  Rune Holm (5 out of 5 patents)

8.  Fritjof Boger Engelhardtsen (5 out of 5 patents)

9.  Mattheus Franciscus Albertus Ten Veldhuis (5 out of 5 patents)

10.  Arne Øyen (4 out of 4 patents)

11.  Øysten Haug Olsen (3 out of 3 patents)

12.  Ole Hovind (3 out of 4 patents)

13.  Knut Osvald Welle (2 out of 2 patents)

14.  Kjetil Haslum (2 out of 2 patents)

15.  Per Kristian Gjermshus (2 out of 2 patents)


Core Competencies:
Acoustic Positioning
Mobile Device Localization
Ultrasound Signaling
Location Determination
Position Determination
Signal Down-Conversion
Mesh Infrastructure
Automatic Detection
Doppler-Induced Code Phase
Data Communications
Identification Devices
Ultrasonic Tracking

67 patents:

1. 12671960 - Determining proximity (2026-06-30),
2. 12671959 - Low level smartphone audio and sensor clock synchronization (2026-06-30),
3. 12510621 - Positioning using cost terms (2025-12-30),
4. 12474169 - Step-based positioning (2025-11-18),
5. 12449504 - Position determination system having a deconvolution decoder (2025-10-21),
6. 12405361 - Master-less device coordination in location positioning system (2025-09-02),
7. 12372645 - Transmitting device for use in location determination systems (2025-07-29),
8. 12307166 - Acoustic positioning transmitter and receiver system and method (2025-05-20),
9. 12253596 - Ad hoc positioning of mobile devices using near ultrasound signals (2025-03-18),
10. 12211088 - Method and system for automated product localization through mobile data analysis (2025-01-28),
11. 12196876 - Likelihood-based acoustic positioning (2025-01-14),
12. 12155669 - Method for using openID connect to manage access to data with rights granted by multiple authentication providers (2024-11-26),
13. 12117551 - Frequency-shift determination (2024-10-15),
14. 12101209 - Orthogonal frequency scheme for narrowband acoustic signaling (2024-09-24),
15. 12099109 - Location determination using acoustic models (2024-09-24),
Sonitor Technologies AS, based in Oslo, Norway, specializes in acoustic positioning technologies that enable precise mobile device localization. The company focuses on innovative solutions utilizing ultrasound signaling for location and position determination, enhancing the capabilities of various applications across industries. Their expertise includes signal down-conversion and the development of mesh infrastructure, which supports automatic detection and tracking systems, making them a key player in the field of advanced positioning technologies.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Sonitor Technologies as
67 Patents

#11 in Oslo

#23 in Norway

#11,023 in the World

Oslo, NO
Oslo, Norway

Sonitor Technologies as

Forward Citations = 303

28 inventors:

goldMedal Wilfred Edwin Booij (58 out of 67 patents)

silverMedal Cyril Antille (14 out of 14 patents)

bronzeMedal Endre Bakka (13 out of 14 patents)

4.  Oystein Haug Olsen (9 out of 9 patents)

5.  Sverre Holm (6 out of 9 patents)

Please report any incorrect information to [email protected]
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