Ari Lehto

This inventor holds 8 USPTO granted patents. Top assignees: Metso Paper Inc., Valmet Corporation. Active years: 1997-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ari Lehto. Retrieved from https://idiyas.com/inventor/ari-lehto-j6was6dx

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

Calculating rank

USPTO Granted Patents = 8

% Patents Active = 37.5

Average Co-Inventor Count = 3.4

ph-index = 3

Forward Citations = 23(Granted Patents)

Location History:

Leppavesi, FI (1997 - 1999)
Leppävesi, FI (2002 - 2011)

Company Filing History:

Years Active: 1997-2011

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7883454 - Inner elongated structure of the roll of a paper/board machine or finishing machine (2011-02-08),

2. 7022056 - Roll in a paper or board machine (2006-04-04),

3. 6699164 - Method for providing a roll for a paper machine with sliding bearings and a roll for a paper machine with sliding bearings (2004-03-02),

4. 6692421 - End packing for a deflection compensated roll (2004-02-17),

5. 6662630 - Method for measuring slide bearing pressure in a deflection-compensated roll with a fixed shell (2003-12-16),

6. 6443880 - Arrangement for removing oil in a roll (2002-09-03),

7. 5896813 - Gradient calender (1999-04-27),

8. 5599263 - Oil feed system for a variable-crown roll (1997-02-04),

Title: Ari Lehto: Innovator in Paper and Board Machinery

Introduction

Ari Lehto is a notable inventor based in Leppävesi, Finland. He has made significant contributions to the field of paper and board machinery, holding a total of eight patents. His innovative designs and methods have advanced the efficiency and functionality of machinery used in the paper industry.

Latest Patents

Ari Lehto's latest patents include an inner elongated structure of the roll of a paper or board machine. This roll features an inner structure that is partially made of composite material, incorporating reinforcing fibers within a matrix material. Additionally, he has developed a method for fitting a tubular roll shell in a paper or board machine. This method utilizes hydrostatic slide bearing elements to support the roll shell on a stationary roll shaft, ensuring optimal performance under various loading conditions.

Career Highlights

Throughout his career, Ari Lehto has worked with prominent companies such as Metso Paper Inc. and Valmet Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced machinery in the paper industry.

Collaborations

Ari has collaborated with several professionals in his field, including Jori Onnela and Kari Holopainen. These partnerships have fostered innovation and the sharing of ideas, further enhancing the advancements in paper and board machinery.

Conclusion

Ari Lehto's contributions to the paper and board machinery industry through his patents and collaborations highlight his role as a key innovator. His work continues to influence the efficiency and design of machinery in this vital sector.

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]