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For the Inventor, By the Inventor

Wiltshire, United Kingdom

Zarlink Semiconductor Limited


USPTO Granted Patents = 173

% Expired Patents = 43.4


Trademarks = 1

Forward Citations = 1,691

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185 inventors (with patents filed for the assignee):

goldMedal Robertus Laurentius Van Der Valk (14 out of 15 patents)

silverMedal Nicholas Paul Cowley (10 out of 120 patents)

bronzeMedal Gary Q Jin (7 out of 20 patents)

4.  Craig Barrack (7 out of 14 patents)

5.  Arshad Madni (7 out of 13 patents)

6.  Linghsiao Wang (6 out of 29 patents)

7.  Timothy Michael Edmund Frost (6 out of 7 patents)

8.  Dieter Schulz (5 out of 28 patents)

9.  Johannes Hermanus Aloysius De Rijk (5 out of 6 patents)

10.  Thomas Joseph Krutsick (5 out of 19 patents)

11.  Willem L Repko (5 out of 5 patents)

12.  Geoffrey Edward Floyd (5 out of 5 patents)

13.  Gordon J Reesor (5 out of 14 patents)

14.  Simon John Skierszkan (5 out of 7 patents)

15.  Rong-Feng Chang (4 out of 12 patents)


Core Competencies:
Echo Cancellation
Phase Locked Loop
Digital Signal Processing
VoIP Technologies
Noise Reduction
Clock Synchronization
Data Switching
Bipolar Transistors
Silicon Controlled Switch
Optoelectronic Devices
Timing Circuit
Adaptive Filters

173 patents:

1. 8035196 - Methods of counter-doping collector regions in bipolar transistors (2011-10-11),
2. 8023641 - Spectral domain, non-linear echo cancellation method in a hands-free device (2011-09-20),
3. 8015258 - Method and apparatus for accessing variable sized blocks of data (2011-09-06),
4. 8012775 - Method of forming a light activated silicon controlled switch (2011-09-06),
5. 8010355 - Low complexity noise reduction method (2011-08-30),
6. 8004122 - Bootstrap supply for switched mode power converter (2011-08-23),
7. 7996557 - Method and apparatus for multi-PHY communication without an ATM bus master (2011-08-09),
8. 7983276 - Timing source (2011-07-19),
9. 7965115 - Soft reference switch for phase locked loop (2011-06-21),
10. 7908138 - Low complexity noise reduction method (2011-03-15),
11. 7907381 - Protection circuit for a subscriber line interface circuit (2011-03-15),
12. 7843954 - Scaleable VoIP telephone line circuit (2010-11-30),
13. 7821016 - Light activated silicon controlled switch (2010-10-26),
14. 7817673 - Clock synchronisation over a packet network (2010-10-19),
15. 7813500 - Method and apparatus for ringing (2010-10-12),
Zarlink Semiconductor Limited, headquartered in Wiltshire, GB, specializes in digital signal processing technologies. The company focuses on developing advanced solutions for echo cancellation, phase locked loops, and VoIP technologies, catering to a range of applications in telecommunications and data communication. With expertise in noise reduction, clock synchronization, and data switching, Zarlink plays a significant role in enhancing the performance and reliability of electronic systems, particularly in environments requiring high-quality signal processing.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Zarlink Semiconductor Limited
173 Patents

#1 in Wiltshire

#97 in United Kingdom

#4,784 in the World

Wiltshire, GB
Wiltshire, United Kingdom

Zarlink Semiconductor Limited

Forward Citations = 1,691

185 inventors:

goldMedal Robertus Laurentius Van Der Valk (14 out of 15 patents)

silverMedal Nicholas Paul Cowley (10 out of 120 patents)

bronzeMedal Gary Q Jin (7 out of 20 patents)

4.  Craig Barrack (7 out of 14 patents)

5.  Arshad Madni (7 out of 13 patents)

Please report any incorrect information to [email protected]
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