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Linthicum, MD, United States of America

Noise Cancellation Technologies, Inc.

USPTO Granted Patents = 73

CIPO Patents = 2

Forward Citations = 2,331

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62 inventors (with patents filed for the assignee):

Graham P Eatwell (17 out of 24 patents)

Owen Jones (8 out of 26 patents)

William E Gossman (7 out of 9 patents)

4. Jeffrey N Denenberg (7 out of 13 patents)

5. Andrew J Langley (7 out of 7 patents)

6. Michael J Parrella (6 out of 25 patents)

7. Eldon W Ziegler (5 out of 7 patents)

8. Michael C Trinder (5 out of 6 patents)

9. Dexter G Smith (4 out of 10 patents)

10. Steven L Machacek (4 out of 4 patents)

11. Colin F Ross (4 out of 11 patents)

12. Michael J Burke (4 out of 4 patents)

13. Stephen F Hildebrand (4 out of 4 patents)

14. Michael P McLoughlin (3 out of 14 patents)

15. Eldon W Ziegler, Jr (3 out of 4 patents)

Core Competencies:

Active Noise Cancellation

Piezoelectric Transducers

Acoustic Echo Canceller

Variable Gain Active Noise Canceling

Adaptive Speech Filter

Active Vibration Control

Noise Reduction System

Multimedia Audio Systems

Hybrid Analog/Digital Control

Hands Free Headset

Ducted Axial Fan

Audio Reproduction Systems

73 patents: Sort by Forward Citations

1. 6259224 - Electronic cancellation of DC motor noise (2001-07-10),

2. 6218766 - Loudspeaker assembly (2001-04-17),

3. 6215884 - Piezo speaker for improved passenger cabin audio system (2001-04-10),

4. 6195440 - Piezoelectric transducers (2001-02-27),

5. 6181797 - Piezo speaker for improved passenger cabin audio systems (2001-01-30),

6. 6147594 - Method and apparatus for conveying audiovisual information (2000-11-14),

7. 6142254 - Decorative speaker cover (2000-11-07),

8. 6118878 - Variable gain active noise canceling system with improved residual noise (2000-09-12),

9. 6108610 - Method and system for updating noise estimates during pauses in an (2000-08-22),

10. 6091813 - Acoustic echo canceller (2000-07-18),

11. 6069959 - Active headset (2000-05-30),

12. 5901231 - Piezo speaker for improved passenger cabin audio systems (1999-05-04),

13. 5841876 - Hybrid analog/digital vibration control system (1998-11-24),

14. 5838805 - Piezoelectric transducers (1998-11-17),

15. 5828768 - Multimedia personal computer with active noise reduction and piezo (1998-10-27),

Noise Cancellation Technologies, Inc. is a leading provider of innovative noise cancellation solutions for various industries. With a team of experts in acoustics and signal processing, we develop and manufacture cutting-edge technology to eliminate unwanted noise and enhance audio experiences. Our products range from active noise cancellation headphones for consumers to advanced industrial noise control systems. We strive to provide high-quality, reliable, and user-friendly solutions that improve productivity, safety, and comfort. Visit our website to learn more about our products and how they can benefit your industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

73 Patents

#1 in Linthicum, MD

#41 in Maryland

#4,849 in US

#9,945 in the World

Linthicum, MD, United States of America

Noise Cancellation Technologies, Inc.

Forward Citations = 2,331

62 inventors:

Graham P Eatwell (17 out of 24 patents)

Owen Jones (8 out of 26 patents)

William E Gossman (7 out of 9 patents)

4. Jeffrey N Denenberg (7 out of 13 patents)

5. Andrew J Langley (7 out of 7 patents)

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