Trademarks = 1

Forward Citations = 47

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13 inventors (with patents filed for the assignee):

John Hewinson (1 out of 3 patents)

Christopher S Cranston (1 out of 1 patent)

Neil Cleverly (1 out of 1 patent)

4. Richard M Ash (1 out of 1 patent)

5. Andrew Carter (1 out of 1 patent)

6. Brian A Goody (1 out of 2 patents)

7. Przemyslaw R Siuda (1 out of 1 patent)

8. John K Atkinson (1 out of 1 patent)

9. Andrew W James (1 out of 1 patent)

10. Clare L Ball (1 out of 1 patent)

11. Brian J Birch (1 out of 4 patents)

12. Peter Walton (1 out of 1 patent)

13. Adrian J Moss (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5483164 - Water quality sensor apparatus (1996-01-09),

2. 5268745 - Light radiation absorption gas detector (1993-12-07),

3. 5065028 - Radiation detector (1991-11-12),

4. 5045896 - Solid state light source for emitting light over a broad spectral band (1991-09-03),

Company Overview

Siemens Plessey Controls Limited is a leading provider of industrial automation and control systems. With a strong focus on technology innovation, the company offers a wide range of solutions for industries such as manufacturing, energy, and transportation. Their products and services help businesses improve efficiency, productivity, and safety in their operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#7 in Poole

#3,863 in United Kingdom

Poole, United Kingdom

Siemens Plessey Controls Limited

Forward Citations = 47

13 inventors:

John Hewinson (1 out of 3 patents)

Christopher S Cranston (1 out of 1 patent)

Neil Cleverly (1 out of 1 patent)

4. Richard M Ash (1 out of 1 patent)

5. Andrew Carter (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Siemens Plessey Controls Limited. Retrieved from https://idiyas.com/company/siemens-plessey-controls

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]