Forward Citations = 14

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2 inventors (with patents filed for the assignee):

Melvin G England (2 out of 3 patents)

Dudley Perring (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 4748424 - Magnetron with frequency control means (1988-05-31),

2. 4636750 - Magnetron with frequency sensor arrangement (1987-01-13),

3. 4482843 - Gyrotron device (1984-11-13),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#8 in Hayes

#4,894 in United Kingdom

Hayes, United Kingdom

Thorn Emi-Varian Limited

Forward Citations = 14

2 inventors:

Melvin G England (2 out of 3 patents)

Dudley Perring (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Thorn Emi-Varian Limited. Retrieved from https://idiyas.com/company/thorn-emi-varian

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]