The Hague, Netherlands

Roelof A Marissen

This inventor holds 3 USPTO granted patents. Top assignee: Sonion Nederland B.v.. Active years: 2006-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Roelof A Marissen. Retrieved from https://idiyas.com/inventor/roelof-a-marissen

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 3

Forward Citations = 241(Granted Patents)


Location History:

  • Den Haag, NL (2006 - 2010)
  • The Hague, NL (2012)

Company Filing History:


Years Active: 2006-2012

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3 patents (USPTO):Explore Patents

Title: Roelof A Marissen: Innovator in Microphone Technology

Introduction

Roelof A Marissen is a notable inventor based in Den Haag, Netherlands. He has made significant contributions to the field of microphone technology, holding a total of 3 patents. His work focuses on enhancing the performance and stability of microphone components.

Latest Patents

One of Roelof's latest patents is an electret assembly for a microphone that features a backplate with improved charge stability. This invention relates to a microphone that includes a housing, diaphragm, and backplate. The housing is designed with a sound port to receive incoming sound. The diaphragm moves in response to sound waves, opposing the backplate. The backplate is equipped with a charged layer that has a first surface exposed to the diaphragm and a second surface opposite it. Additionally, the backplate includes a conductor that transmits signals to the electronics within the housing. To prevent charge degradation caused by foreign materials, the charged layer's surfaces may include a protective layer.

Career Highlights

Roelof A Marissen is currently employed at Sonion Nederland B.V., where he continues to innovate in the field of audio technology. His expertise and inventions have contributed to advancements in microphone design and functionality.

Collaborations

Throughout his career, Roelof has collaborated with notable colleagues, including Aart Zeger Van Halteren and Michel Bosman. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Roelof A Marissen is a distinguished inventor whose work in microphone technology has led to significant advancements. His patents reflect a commitment to improving audio equipment performance and stability.

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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