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For the Inventor, By the Inventor

Cambridge, United Kingdom

Cambridge Positioning Systems Limited

USPTO Granted Patents = 26

% Expired Patents = 65.4


Forward Citations = 1,144

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20 inventors (with patents filed for the assignee):

goldMedal Peter James Duffett-Smith (23 out of 41 patents)

silverMedal Robert Willem Rowe (8 out of 8 patents)

bronzeMedal Anthony Richard Pratt (8 out of 8 patents)

4.  Paul Hansen (6 out of 18 patents)

5.  Malcolm David MacNaughtan (6 out of 6 patents)

6.  James Brice (5 out of 8 patents)

7.  Christopher R Drane (3 out of 3 patents)

8.  John Christopher Clarke (3 out of 3 patents)

9.  Murray Robert Jarvis (2 out of 38 patents)

10.  Simon David Hern (2 out of 2 patents)

11.  David William Bartlett (2 out of 2 patents)

12.  Craig A Scott (2 out of 2 patents)

13.  Nicolas Guy Albert Graube (1 out of 9 patents)

14.  Ben J Tarlow (1 out of 12 patents)

15.  Craig Andrew Scott (1 out of 1 patent)


Core Competencies:
Mobile Terminal
Radio Positioning
Satellite Navigation
Location Tracking
Calibrated Time
Signal Processing
Digital Telephone Networks
Position Determining
Navigation Systems
Mobile Radio Receiver
Tracking Technology
Locale Detection

26 patents:

1. 8730105 - Finding the position of a mobile terminal (2014-05-20),
2. 8630656 - Method and system for locating a mobile radio receiver in a radio system with multiple transmitters (2014-01-14),
3. 8472971 - Method and apparatus for determining whether a mobile terminal has moved outside a given locale (2013-06-25),
4. 8279116 - Processing received satellite radio signals (2012-10-02),
5. 8255160 - Integrated mobile terminal navigation (2012-08-28),
6. 8253628 - Transfer of calibrated time information in a mobile terminal (2012-08-28),
7. 8103294 - Determining the change in time at a mobile terminal (2012-01-24),
8. 8050687 - Location systems and methods (2011-11-01),
9. 8013788 - Assistance to a mobile SPS receiver (2011-09-06),
10. 7978136 - Associating a universal time with received signal (2011-07-12),
11. 7852267 - Transfer of calibrated time information in a mobile terminal (2010-12-14),
12. 7652622 - Transfer of position information of mobile terminal (2010-01-26),
13. 7639179 - Transfer of position information to a mobile terminal (2009-12-29),
14. 7593736 - Positioning system for digital telephone networks (2009-09-22),
15. 7508883 - Radio positioning systems (2009-03-24),
Company Overview
Cambridge Positioning Systems Limited is a technology company based in Cambridge, UK, specializing in advanced positioning solutions. The organization focuses on developing innovative technologies that enhance location-based services, particularly in the fields of telecommunications and navigation. By leveraging cutting-edge research in signal processing and geolocation, the company aims to improve accuracy and reliability in positioning systems, catering to various industries including automotive, mobile, and smart devices.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

26 Patents

#42 in Cambridge

#680 in United Kingdom

#24,826 in the World

Cambridge, GB
Cambridge, United Kingdom

Cambridge Positioning Systems Limited

Forward Citations = 1,144

20 inventors:

goldMedal Peter James Duffett-Smith (23 out of 41 patents)

silverMedal Robert Willem Rowe (8 out of 8 patents)

bronzeMedal Anthony Richard Pratt (8 out of 8 patents)

4.  Paul Hansen (6 out of 18 patents)

5.  Malcolm David MacNaughtan (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cambridge Positioning Systems Limited. Retrieved from https://idiyas.com/company/cambridge-positioning-systems

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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