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For the Inventor, By the Inventor

Par Cornwall, United Kingdom

Imerys Minerals Limited

USPTO Granted Patents = 33

% Expired Patents = 24.2



Trademarks = 7

Forward Citations = 236

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55 inventors (with patents filed for the assignee):

goldMedal David Robert Skuse (6 out of 34 patents)

silverMedal Jonathan Stuart Phipps (6 out of 24 patents)

bronzeMedal John Claude Husband (4 out of 22 patents)

4.  Andrew Mark Riley (3 out of 3 patents)

5.  Per Svending (2 out of 19 patents)

6.  Alan Coles (2 out of 5 patents)

7.  Mikko Likitalo (2 out of 5 patents)

8.  Tafadzwa Motsi (2 out of 9 patents)

9.  Philip Taylor (2 out of 8 patents)

10.  Patrick Joseph Mulqueen (2 out of 10 patents)

11.  David Ian Gittins (2 out of 4 patents)

12.  Philip Kenneth Johns (2 out of 2 patents)

13.  Deborah Susan Thrale (2 out of 2 patents)

14.  Christopher Stirling Hogg (2 out of 2 patents)

15.  Deeba Marjan Ansari (2 out of 2 patents)


Core Competencies:
Precipitated Calcium Carbonate
Polymer Composition
Microencapsulation
Recycling Polymer Waste
Coating Composition
Diatomaceous Earth
Paper Coating Pigments
Clay Mineral Products
Particulate Mineral Materials
Kaolin Products
Dispersing Agents
Water Treatment

33 patents:

1. 11498848 - Precipitated calcium carbonate for reducing emissions of volatile organic compounds (2022-11-15),
2. 10087303 - Polymer composition comprising inorganic particulate filler (2018-10-02),
3. 10015961 - Microencapsulation (2018-07-10),
4. 9969868 - Methods and compositions related to recycling polymer waste (2018-05-15),
5. 9943820 - Microcapsules (2018-04-17),
6. 9868876 - Coating composition (2018-01-16),
7. 9783931 - Coating composition (2017-10-10),
8. 9433918 - Method of making diatomaceous earth granulate (2016-09-06),
9. 9260613 - Clear coating compositions comprising particulate inorganic mineral (2016-02-16),
10. 9204631 - Microencapsulation (2015-12-08),
11. 9127405 - Paper filler composition (2015-09-08),
12. 8231764 - Paper filler method (2012-07-31),
13. 8183316 - Clay mineral products and their use in rubber compositions (2012-05-22),
14. 7938346 - Grinding method for inorganic particulate material (2011-05-10),
15. 7875151 - Kaolin products and their production (2011-01-25),
Company Overview
Imerys Minerals Limited specializes in the development and production of industrial minerals, focusing on enhancing the performance of a wide range of products across various sectors. The company is known for its expertise in mineral-based solutions, catering to industries such as construction, automotive, and consumer goods. With a commitment to innovation, Imerys leverages advanced technologies to create high-quality materials that meet the evolving needs of its global clientele, emphasizing sustainability and efficiency in its operations.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Imerys Minerals Limited USPTO Patent Assignee Logo
33 Patents

#1 in Par Cornwall

#543 in United Kingdom

#20,162 in the World

Par Cornwall, GB
Par Cornwall, United Kingdom

Imerys Minerals Limited

Forward Citations = 236

55 inventors:

goldMedal David Robert Skuse (6 out of 34 patents)

silverMedal Jonathan Stuart Phipps (6 out of 24 patents)

bronzeMedal John Claude Husband (4 out of 22 patents)

4.  Andrew Mark Riley (3 out of 3 patents)

5.  Per Svending (2 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Imerys Minerals Limited. Retrieved from https://idiyas.com/company/imerys-minerals

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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