Skövde, Sweden

Stig-ake Ljungkvist

This inventor holds 2 USPTO granted patents. Top assignee: Other. Active years: 1986-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stig-ake Ljungkvist. Retrieved from https://idiyas.com/inventor/stig-ake-ljungkvist

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 = 1.3

ph-index = 2

Forward Citations = 14(Granted Patents)


Company Filing History:

goldMedal2 out of 834,601 
Other
 patents

Years Active: 1986-1989

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2 patents (USPTO):Explore Patents

Title: Stig-ake Ljungkvist: Innovator in Ventilation Solutions

Introduction

Stig-ake Ljungkvist is a notable inventor based in Skovde, Sweden. He has made significant contributions to the field of ventilation technology, holding 2 patents that showcase his innovative approach to solving practical problems.

Latest Patents

Ljungkvist's latest patents include an arrangement for improved ventilation and a method of using this arrangement. This invention utilizes a U-shaped rail as a casing for a bar of wood, featuring barbs on the inner walls and ribs at the bottom. The design incorporates tracks on the underside of the rail that align with corresponding tracks on the mountings. This innovative rail system is designed to secure bars of wood on an underfloor that has been damaged by moisture, while also allowing for the placement of insulating material. The arrangement facilitates natural or forced ventilation between the underfloor and the isolating material, effectively preventing radon from penetrating the premises above.

Career Highlights

Throughout his career, Ljungkvist has focused on developing practical solutions that enhance living conditions. His work in ventilation technology has been instrumental in addressing issues related to moisture and air quality in buildings.

Collaborations

Ljungkvist has collaborated with various professionals in his field, including his coworker Lennart Nils Johansson. Their combined expertise has contributed to the successful development of innovative solutions in ventilation.

Conclusion

Stig-ake Ljungkvist is a dedicated inventor whose work in ventilation technology has made a significant impact. His innovative patents reflect his commitment to improving living conditions through practical solutions.

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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