% Expired Patents = 14.3

Forward Citations = 74

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9 inventors (with patents filed for the assignee):

Raymond L Coleman (2 out of 2 patents)

Francisco Javier Vazquez Sanchez (1 out of 1 patent)

Robert A Pearson (1 out of 1 patent)

4. Stephen J Foti (1 out of 2 patents)

5. Alexander S Laurie (1 out of 1 patent)

6. Michael C Carter (1 out of 1 patent)

7. Graham P Hicks (1 out of 1 patent)

8. Colin S Aitchison (1 out of 1 patent)

9. Peter A Kurn (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 7142165 - Waveguide and slotted antenna array with moveable rows of spaced posts (2006-11-28),

2. 4885483 - Logarithmic amplifier (1989-12-05),

3. 4857856 - Transformer testing (1989-08-15),

4. 4785233 - Method and apparatus for testing electrical equipent (1988-11-15),

5. 4751453 - Dual phase shifter (1988-06-14),

6. 4348719 - Static inverter with energy return (1982-09-07),

7. 4044173 - Electrical resistance compositions (1977-08-23),

Company Overview

Era Patents Limited is a leading intellectual property law firm specializing in patents, trademarks, and copyrights. With a team of experienced and dedicated professionals, we provide comprehensive patent services to help clients protect their intellectual property rights. Our expertise and personalized approach set us apart in the industry, ensuring the highest level of service and attention to detail for all our clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#25 in Surrey

#2,342 in United Kingdom

Surrey, United Kingdom

Era Patents Limited

Forward Citations = 74

9 inventors:

Raymond L Coleman (2 out of 2 patents)

Francisco Javier Vazquez Sanchez (1 out of 1 patent)

Robert A Pearson (1 out of 1 patent)

4. Stephen J Foti (1 out of 2 patents)

5. Alexander S Laurie (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Era Patents Limited. Retrieved from https://idiyas.com/company/era-patents

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]