Jyväskylä, Finland

Esa Lehtovirta

This inventor holds 2 USPTO granted patents. Top assignee: Valmet Corporation. Active years: 1998-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Esa Lehtovirta. Retrieved from https://idiyas.com/inventor/esa-lehtovirta

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1998-1999

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2 patents (USPTO):Explore Patents

Title: Esa Lehtovirta: Innovator in Paper Making Technology

Introduction

Esa Lehtovirta is a notable inventor based in Jyvaskyla, Finland. He has made significant contributions to the field of paper making technology, particularly in the area of vibration prevention in roll sets. With a total of 2 patents, his work has been instrumental in enhancing the efficiency and quality of paper production processes.

Latest Patents

Esa Lehtovirta's latest patents include an "Apparatus for preventing vibrations of a roll set" and a "Method for preventing vibrations of a roll set." The apparatus is designed to reduce or prevent vibrations in a roll set of a paper making apparatus. This roll set consists of at least two rolls, with at least one being a soft roll coated with a compressible coating and equipped with a temperature control system. By altering the temperature of the coating on the soft roll, the natural vibrational frequency of the roll set can be modified during operation. This adjustment helps to prevent resonance at the natural frequency of the roll set, thereby improving the overall performance of the paper making process.

Career Highlights

Esa Lehtovirta is currently employed at Valmet Corporation, a leading company in the field of paper and board technology. His innovative approaches and patented technologies have contributed to the advancement of the industry.

Collaborations

Esa has collaborated with notable colleagues such as Jorma Kolio and Markku Salo, further enhancing the impact of his work in the field.

Conclusion

Esa Lehtovirta's contributions to paper making technology through his innovative patents demonstrate his commitment to improving industrial processes. His work continues to influence the efficiency and quality of paper production, marking him as a significant figure in the field.

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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