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For the Inventor, By the Inventor

Sheffield, United Kingdom

Phase Focus Limited

Calculating rank
USPTO Granted Patents = 19

% Expired Patents = 15.8


Trademarks = 1

Forward Citations = 115

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9 inventors (with patents filed for the assignee):

goldMedal Andrew Maiden (14 out of 15 patents)

silverMedal Martin James Humphry (7 out of 7 patents)

bronzeMedal Kevin Langley (4 out of 4 patents)

4.  James Russell (4 out of 4 patents)

5.  John Marius Rodenburg (3 out of 3 patents)

6.  Paul Christopher Roberts (1 out of 46 patents)

7.  Fucai Zhang (1 out of 1 patent)

8.  Helen Mary Louise Faulkner (1 out of 1 patent)

9.  Matthew Stagg (1 out of 1 patent)

10.  Kevin Robert Langley (0 patent)

11.  Andrew Michael Maiden (0 patent)


19 patents:

1. 11887315 - Method and apparatus for tracking an object (2024-01-30),
2. 10679038 - Method and apparatus for determining temporal behaviour of an object in image data (2020-06-09),
3. 10466184 - Providing image data (2019-11-05),
4. 9784640 - Method and apparatus for determining object characteristics (2017-10-10),
5. 9618332 - Method and apparatus for position determination (2017-04-11),
6. 9448160 - Method and apparatus for providing image data for constructing an image of a region of a target object (2016-09-20),
7. 9401042 - Method and apparatus for imaging a three dimensional target object using incident radiation (2016-07-26),
8. 9322791 - Phase retrieval from ptychography (2016-04-26),
9. 9274024 - Method and apparatus for determining object characteristics (2016-03-01),
10. 9202295 - Field of imaging (2015-12-01),
11. 9121764 - Providing image data (2015-09-01),
12. 9116120 - Three dimensional imaging (2015-08-25),
13. 9087674 - Characteristic determination (2015-07-21),
14. 9086570 - Quantative phase imaging microscope and method and apparatus performing the same (2015-07-21),
15. 9029745 - Method and apparatus for providing image data (2015-05-12),
Company Overview
Phase Focus Limited, based in Sheffield, specializes in advanced imaging technologies that enhance the visualization of biological samples and materials. The company focuses on developing innovative solutions that leverage phase retrieval techniques, enabling high-resolution imaging without the need for traditional lenses. Their technology finds applications across various sectors, including life sciences and materials research, contributing to advancements in microscopy and diagnostics. With a commitment to pushing the boundaries of imaging science, Phase Focus is positioned at the forefront of optical innovation.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#9 in Sheffield

#928 in United Kingdom

#32,705 in the World

Sheffield, GB
Sheffield, United Kingdom

Phase Focus Limited

Forward Citations = 115

9 inventors:

goldMedal Andrew Maiden (14 out of 15 patents)

silverMedal Martin James Humphry (7 out of 7 patents)

bronzeMedal Kevin Langley (4 out of 4 patents)

4.  James Russell (4 out of 4 patents)

5.  John Marius Rodenburg (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Phase Focus Limited. Retrieved from https://idiyas.com/company/phase-focus

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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