Oulu, Finland

Risto Tapani Martikkala

This inventor holds 7 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Nokia Corporation, Nokia Solutions and Networks Oy, Nokia Siemens Networks Oy. Active years: 2004-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Risto Tapani Martikkala. Retrieved from https://idiyas.com/inventor/risto-tapani-martikkala

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

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 57.1

 

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 66(Granted Patents)


Company Filing History:


Years Active: 2004-2019

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7 patents (USPTO):Explore Patents

Title: Risto Tapani Martikkala: Innovator in Antenna Technology

Introduction

Risto Tapani Martikkala is a notable inventor based in Oulu, Finland. He has made significant contributions to the field of antenna technology, holding a total of 7 patents. His work focuses on enhancing the performance and calibration of antenna systems, which are crucial in modern communication technologies.

Latest Patents

Martikkala's latest patents include innovative designs such as antenna elements and apparatus suitable for AAS calibration by selective couplerline and TRX RF subgroups. This invention features an antenna arrangement that includes an antenna element and a corresponding feeder line, designed to efficiently feed signals to and from the antenna element. The arrangement incorporates a couplerline that utilizes inductive coupling to enhance signal transmission. Another significant patent is the parallel amplifier architecture with feedback control based on reflected signal strength. This design allows for the amplification and combination of input signals through a sophisticated feedback loop, optimizing signal quality and performance.

Career Highlights

Throughout his career, Martikkala has worked with prominent companies in the telecommunications sector, including Nokia Corporation and Nokia Solutions and Networks Oy. His experience in these organizations has allowed him to develop and refine his innovative ideas in antenna technology.

Collaborations

Martikkala has collaborated with several professionals in his field, including Tapio Mikael Vuopala and Pekka Adolfsen. These collaborations have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Risto Tapani Martikkala is a distinguished inventor whose work in antenna technology has led to several impactful patents. His contributions continue to influence the field and enhance communication systems worldwide.

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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