Forward Citations = 519

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2 inventors (with patents filed for the assignee):

Michael Anthony Gerzon (4 out of 15 patents)

Geoffrey James Barton (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5757927 - Surround sound apparatus (1998-05-26),

2. 5671287 - Stereophonic signal processor (1997-09-23),

3. 5594800 - Sound reproduction system having a matrix converter (1997-01-14),

4. 5555306 - Audio signal processor providing simulated source distance control (1996-09-10),

Trifield Productions Limited is a full-service video production company specializing in creating high-quality content for corporations, brands, and individuals. With a team of experienced professionals, we offer a range of services including scriptwriting, filming, editing, and post-production. Our mission is to bring your vision to life and deliver exceptional results that exceed your expectations. Contact us today to discuss your next video project.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

4 Patents

#657 in London

#3,861 in United Kingdom

London, United Kingdom

Trifield Productions Limited

Forward Citations = 519

2 inventors:

Michael Anthony Gerzon (4 out of 15 patents)

Geoffrey James Barton (1 out of 1 patent)

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