Sira Limited

Calculating rank

USPTO Granted Patents = 12

Forward Citations = 138

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6 inventors (with patents filed for the assignee):

Robert N West (6 out of 9 patents)

Iginia Busisi (2 out of 2 patents)

Lionel R Baker (2 out of 4 patents)

4. Enzo Scaglia (1 out of 16 patents)

5. Gordon R Hopkinson (1 out of 1 patent)

6. Martin J Webber (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5524426 - Spindle-bearing unit with at least two coaxial spindles (1996-06-11),

2. 5433332 - Container for roving (1995-07-18),

3. 5406697 - Equipment and plant for the precision assembling of mechanical (1995-04-18),

4. 5349870 - Method and apparatus for detecting stress in an object (1994-09-27),

5. 4963018 - Ranging apparatus (1990-10-16),

6. 4861984 - Surface inspection or ranging apparatus with image derotation (1989-08-29),

7. 4861164 - Apparatus for separating specular from diffuse radiation (1989-08-29),

8. 4851696 - Apparatus for receiving radiation only within predetermined angular (1989-07-25),

9. 4845356 - Apparatus and method for surface inspection with test and reference (1989-07-04),

10. 4797558 - Inspection apparatus including photodetection and scanning apparatus (1989-01-10),

11. 4737650 - Inspection apparatus (1988-04-12),

12. 4592684 - Method and apparatus for producing aspherical surfaces (1986-06-03),

Company Overview

Sira Limited is a technology company based in Kent, UK, specializing in the development and manufacturing of advanced electronic systems and solutions. The organization focuses on providing innovative products and services across various sectors, including security, telecommunications, and industrial applications. With a commitment to research and development, Sira Limited aims to enhance operational efficiency and safety through cutting-edge technology and tailored solutions that meet the evolving needs of its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

12 Patents

#12 in Kent

#1,463 in United Kingdom

#48,276 in the World

Kent, United Kingdom

Sira Limited

Forward Citations = 138

6 inventors:

Robert N West (6 out of 9 patents)

Iginia Busisi (2 out of 2 patents)

Lionel R Baker (2 out of 4 patents)

4. Enzo Scaglia (1 out of 16 patents)

5. Gordon R Hopkinson (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sira Limited. Retrieved from https://idiyas.com/company/sira

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]