For the Inventor, By the Inventor

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Pickering, Canada

Lenbrook Industries Limited

USPTO Granted Patents = 14

EPO Patents = 1

Trademarks = 18

Forward Citations = 89

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15 inventors (with patents filed for the assignee):

Gregory R Stidsen (7 out of 10 patents)

Jens Torben Sonderskov (4 out of 6 patents)

Paul Barton (4 out of 4 patents)

4. Taresh Vadgama (3 out of 6 patents)

5. Matthew Simmonds (3 out of 3 patents)

6. Kevin Groeneveld (3 out of 5 patents)

7. Peter Graham Craven (2 out of 32 patents)

8. Ross Graham Gordon Eberlin (2 out of 3 patents)

9. John Robert Stuart (2 out of 12 patents)

10. Gordon Van Kessel (2 out of 2 patents)

11. Andrew Haines (1 out of 1 patent)

12. Steve Orzel (1 out of 9 patents)

13. David Smith (1 out of 1 patent)

14. David Peter Farrage (1 out of 28 patents)

15. Ross G Eberlin (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 12301177 - Power-over-ethernet (PoE) powered multichannel streaming audio amplifier (2025-05-13),

2. 12279007 - Audio video receiver (AVR) architecture (2025-04-14),

3. 12245007 - Power over ethernet (PoE) powered smart speaker (2025-03-04),

4. 12219182 - Audio video receiver with simultaneous multizone 8K video routing (2025-02-04),

5. 12207043 - Speaker with oblique mounted bass driver (2025-01-21),

6. 12183356 - Digital encapsulation of audio signals (2024-12-31),

7. 11996816 - Non linear filter with group delay at pre-response frequency for high res radio (2024-05-28),

8. 11930225 - Audio video receiver with simultaneous multizone 8K video routing (2024-03-12),

9. 11755274 - Hybrid input networked audio subwoofer (2023-09-12),

10. 11627407 - Speaker with oblique mounted bass driver (2023-04-11),

11. 11410699 - USB-C PD powered phono preamplifer (2022-08-09),

12. 11277687 - Power over Ethernet (PoE) powered smart speaker (2022-03-15),

13. D713374 - Headphones (2014-09-16),

14. D522496 - Speaker gimbal (2006-06-06),

Lenbrook Industries Limited is a Canadian company that designs and manufactures consumer electronics products. Established in 1978, Lenbrook is known for its high-quality audio equipment under the brand names NAD Electronics and PSB Speakers. The company is committed to innovation and excellence in audio engineering, delivering superior sound experiences to customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

14 Patents

#2 in Pickering

#1,017 in Canada

#40,937 in the World

Pickering, Canada

Lenbrook Industries Limited

Forward Citations = 89

15 inventors:

Gregory R Stidsen (7 out of 10 patents)

Jens Torben Sonderskov (4 out of 6 patents)

Paul Barton (4 out of 4 patents)

4. Taresh Vadgama (3 out of 6 patents)

5. Matthew Simmonds (3 out of 3 patents)

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