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For the Inventor, By the Inventor

Ruddington, United Kingdom

Quadrant Healthcare (UK) Limited

Calculating rank
USPTO Granted Patents = 13

Forward Citations = 538

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14 inventors (with patents filed for the assignee):

goldMedal Richard A Johnson (10 out of 31 patents)

silverMedal Andrew Derek Sutton (9 out of 15 patents)

bronzeMedal David Heath (3 out of 7 patents)

4.  Peter J Senior (3 out of 5 patents)

5.  Nicholas David Osborne (2 out of 4 patents)

6.  Camilo Colaco (1 out of 25 patents)

7.  Kamaljit S Dhaliwal (1 out of 1 patent)

8.  David T Welsh (1 out of 1 patent)

9.  Alan G Tunnacliffe (1 out of 1 patent)

10.  Susan Stewart Smith (1 out of 1 patent)

11.  Stuart Robinson (1 out of 1 patent)

12.  Cheryl Vanessa Rogerson (1 out of 1 patent)

13.  Bruce J Roser (1 out of 41 patents)

14.  Paulus Antonius Van Der Wouw (1 out of 1 patent)


13 patents:

1. 6623722 - Spray-drying microcapsules using an aqueous liquid containing a volatile liquid (2003-09-23),
2. 6569405 - Preparation of diagnostic agents (2003-05-27),
3. 6468782 - Methods of preserving prokaryotic cells and compositions obtained thereby (2002-10-22),
4. 6451349 - Spray-drying process for the preparation of microparticles (2002-09-17),
5. 6416741 - Preparation of further diagnostic agents (2002-07-09),
6. 6416739 - Microparticles and their therapeutic or diagnostic use (2002-07-09),
7. 6348186 - Preparation of further diagnostic agents (2002-02-19),
8. 6344182 - Preparation of diagnostic agents by spray drying (2002-02-05),
9. 6068600 - Use of hollow microcapsules (2000-05-30),
10. 6022525 - Preparation of diagnostic agents (2000-02-08),
11. 6015546 - Preparation of further diagnostic agents (2000-01-18),
12. 5993805 - Spray-dried microparticles and their use as therapeutic vehicles (1999-11-30),
13. 5955108 - Cross-linked microparticles and their use as therapeutic vehicles (1999-09-21),
Company Overview
Quadrant Healthcare (UK) Limited is a prominent player in the healthcare sector, specializing in the development and manufacturing of innovative medical devices and healthcare solutions. The company focuses on enhancing patient care through advanced technology and research, aiming to address various medical challenges. With a commitment to quality and innovation, Quadrant Healthcare operates primarily in the UK, contributing to the advancement of healthcare practices and improving outcomes for patients and healthcare providers alike.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

13 Patents

#1 in Ruddington

#1,367 in United Kingdom

#45,104 in the World

Ruddington, GB
Ruddington, United Kingdom

Quadrant Healthcare (UK) Limited

Forward Citations = 538

14 inventors:

goldMedal Richard A Johnson (10 out of 31 patents)

silverMedal Andrew Derek Sutton (9 out of 15 patents)

bronzeMedal David Heath (3 out of 7 patents)

4.  Peter J Senior (3 out of 5 patents)

5.  Nicholas David Osborne (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Quadrant Healthcare (UK) Limited. Retrieved from https://idiyas.com/company/quadrant-healthcare-uk

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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