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For the Inventor, By the Inventor

Royston, United Kingdom

David Micallef

This inventor holds 11 USPTO granted patents and 3 published patent applications and 5 EPO patents. Top assignee: Johnson Matthey Public Limited Company. Active years: 2017-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Micallef. Retrieved from https://idiyas.com/inventor/david-micallef

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 11 

% Patents Active = 81.8

 

Average Co-Inventor Count = 3.9

ph-index = 4

Forward Citations = 46(Granted Patents)


Location History:

  • Lower Cambourne, GB (2018)
  • Royston, GB (2017 - 2023)

Company Filing History:

goldMedal10 out of 854 
 
Johnson Matthey Public Limited Company
 patents
where one patent can have more than one assignee

Years Active: 2017-2026

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11 patents (USPTO):Explore Patents
1. 12714990 - Composite, zoned oxidation catalyst for a compression ignition internal combustion engine (2026-08-25),
2. 12343714 - Composite, zoned oxidation catalyst for a compression ignition internal combustion engine (2025-07-01),
3. 12318760 - Composite, zone-coated, dual-use ammonia (AMOX) and nitric oxide oxidation catalyst (2025-06-03),
4. 12296319 - Composite, zoned oxidation catalys for a compression ignition internal combustion engine (2025-05-13),
5. 11845064 - Composite, zoned oxidation catalyst for a compression ignition internal combustion engine (2023-12-19),
6. 10828603 - SCR with turbo and ASC/DOC close-coupled system (2020-11-10),
7. 10807081 - Ammonia slip catalyst designed to be first in an SCR system (2020-10-20),
8. 10799832 - Catalyst article for use in an emission treatment system (2020-10-13),
9. 10201807 - Ammonia slip catalyst designed to be first in an SCR system (2019-02-12),
10. 9943830 - Tungsten/titania oxidation catalyst (2018-04-17),
11. 9789441 - Single or dual layer ammonia slip catalyst (2017-10-17),

Title: David Micallef: Innovator in Catalytic Technology

Introduction

David Micallef is a prominent inventor based in Royston, GB, known for his significant contributions to catalytic technology. With a total of 10 patents to his name, Micallef has made strides in developing advanced solutions for internal combustion engines and emissions control.

Latest Patents

Among his latest innovations is the "Composite, zoned oxidation catalyst for a compression ignition internal combustion engine." This invention focuses on enhancing the efficiency of heavy-duty diesel vehicles by integrating a composite oxidation catalyst and a soot filter substrate. Another notable patent is the "Composite, zone-coated, dual-use ammonia (AMOX) and nitric oxide oxidation catalyst," which aims to improve the performance of catalytic converters through innovative washcoat designs.

Career Highlights

David Micallef is currently employed at Johnson Matthey Public Limited Company, a leader in sustainable technologies. His work has been instrumental in advancing the field of emissions control and improving the environmental impact of combustion engines.

Collaborations

Micallef collaborates with talented professionals in his field, including Mikael Larsson and Andrew Francis Chiffey. Their combined expertise contributes to the innovative projects at Johnson Matthey.

Conclusion

David Micallef's work exemplifies the spirit of innovation in catalytic technology, making significant contributions to the automotive industry and environmental sustainability.

Profile summary based on public USPTO records.
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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