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For the Inventor, By the Inventor

Eskilstuna, Sweden

Erik R Tranberg

This inventor holds 4 USPTO granted patents. Top assignee: Gkn-Stenman Ab. Active years: 1980-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Erik R Tranberg. Retrieved from https://idiyas.com/inventor/erik-r-tranberg

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 24(Granted Patents)


Company Filing History:

goldMedal4 out of 19 
 
Gkn-Stenman Ab
 patents

Years Active: 1980-1982

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4 patents (USPTO):Explore Patents
1. 4329768 - Method of manufacturing a lock follower arm with a press-fitted hub (1982-05-18),
2. 4266711 - Method of manufacturing a lock cylinder follower (1981-05-12),
3. 4226454 - Lock follower, particularly a handle or pressure follower, and a method (1980-10-07),
4. 4185481 - Lock follower, particularly a cylinder follower, and a method of (1980-01-29),

Title: Innovations of Erik R Tranberg

Introduction

Erik R Tranberg is a notable inventor based in Eskilstuna, Sweden. He has made significant contributions to the field of lock manufacturing, holding a total of 4 patents. His innovative designs focus on enhancing the functionality and efficiency of lock components.

Latest Patents

One of his latest patents is a method of manufacturing a lock follower arm with a press-fitted hub. This invention involves a lock follower that comprises a hub part made from a machined rod-like or tubular material and an arm part made from punched sheet-metal material. The two parts are rigidly joined together through the flow of material from the arm part to a peripheral groove in the hub part. The design includes features that facilitate the secure joining of the two components, ensuring durability and reliability.

Another significant patent by Erik is a method of manufacturing a lock cylinder follower. This invention consists of a central part and a cylindrical bearing part that are attached to each other. The central part is punched from a sheet-metal blank, while the cylindrical bearing part partially surrounds it. The two components can be joined through welding or material deformation, showcasing Erik's innovative approach to lock follower design.

Career Highlights

Erik R Tranberg is associated with GKN-Stenman AB, a company known for its expertise in manufacturing high-quality lock components. His work at GKN-Stenman AB has allowed him to apply his inventive skills in a practical setting, contributing to advancements in the industry.

Collaborations

Erik has collaborated with Bo G Widen, further enhancing the innovative efforts within their field. Their partnership has likely led to the development of new ideas and improvements in lock manufacturing processes.

Conclusion

Erik R Tranberg's contributions to lock manufacturing through his patents demonstrate his commitment to innovation and excellence. His work continues to influence the industry, showcasing the importance of inventive thinking in practical applications.

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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