Hamburg, Germany

Lasse Kuparinen

This inventor holds 6 USPTO granted patents. Top assignee: Koh-I-Noor Rapidograph, Inc.. Active years: 1976-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lasse Kuparinen. Retrieved from https://idiyas.com/inventor/lasse-kuparinen

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 = 1.1

ph-index = 3

Forward Citations = 36(Granted Patents)


Location History:

  • Sulfeld, DE (1978)
  • Hamburg, DE (1976 - 1980)

Company Filing History:


Years Active: 1976-1980

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6 patents (USPTO):Explore Patents

Title: Innovations by Lasse Kuparinen

Introduction

Lasse Kuparinen is a notable inventor based in Hamburg, Germany. He has made significant contributions to the field of writing instruments, particularly through his innovative designs that enhance the functionality of capillary pens. With a total of six patents to his name, Kuparinen's work reflects a commitment to improving user experience in everyday writing tools.

Latest Patents

Among his latest patents is the "Ink Compensating Chamber for Scriber." This invention features a capillary writing pen equipped with an expansion or compensation chamber located between the ink reservoir and ambient air. The design prevents inadvertent ink flow from the reservoir to the pen tip due to pressure or temperature changes. The interior wall of the expansion chamber is uniquely profiled with a series of transverse indentations, creating successive expansion areas for air entrapment and constrictive areas for ink menisci formation. This innovative design effectively traps air bubbles within the ink, increasing resistance to capillary flow.

Another significant patent is the "Cover for Scriber," which shares similar features with the ink compensating chamber. This capillary writing pen also includes an expansion chamber that mitigates unintended ink flow. The profiled interior wall with transverse indentations serves the same purpose of enhancing air entrapment and controlling ink flow, showcasing Kuparinen's dedication to refining writing technology.

Career Highlights

Lasse Kuparinen is currently associated with Koh-i-noor Rapidograph, Inc., where he continues to develop innovative writing solutions. His work has garnered attention for its practical applications and technical advancements in the field of writing instruments.

Collaborations

Kuparinen collaborates with Gerold Anderka, contributing to the development of new technologies and designs in the writing instrument industry.

Conclusion

Lasse Kuparinen's inventive spirit and dedication to enhancing writing instruments have led to significant advancements in capillary pen technology. His patents reflect a deep understanding of user needs and technical challenges, making him a valuable contributor to 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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