London, United Kingdom

Johnsen & Jorgensen Limited


USPTO Granted Patents = 2

Forward Citations = 29

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3 inventors (with patents filed for the assignee):

goldMedal Eugene E Davis (2 out of 15 patents)

silverMedal Richard J Searle (1 out of 2 patents)

bronzeMedal Gerardo Mancini (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#1,089 in London

#6,516 in United Kingdom

London, GB
London, United Kingdom
Forward Citations = 29

3 inventors:

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnsen & Jorgensen Limited. Retrieved from https://idiyas.com/company/johnsen-and-jorgensen

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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