Osnabrueck, Germany

Stefan Kiefer

This inventor holds 3 USPTO granted patents and 1 published patent application and 19 EPO patents. Top assignee: Amazonen-Werke H. Dreyer Se & Co. Kg. Active years: 2024-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stefan Kiefer. Retrieved from https://idiyas.com/inventor/stefan-kiefer-ntfys56i

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.6

ph-index = 1


Company Filing History:


Years Active: 2024-2025

Loading Chart...
Loading Chart...
3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Stefan Kiefer

Introduction

Stefan Kiefer is a notable inventor based in Osnabrück, Germany. He has made significant contributions to agricultural technology, holding a total of 3 patents. His work focuses on improving the efficiency and effectiveness of agricultural distribution and spraying devices.

Latest Patents

One of Kiefer's latest patents is a method of spreading granular material. This method involves using an agricultural distribution device that spreads granular material onto agricultural land through multiple distribution elements. The device detects plant rows during the spreading process, allowing for targeted application in row areas and row-free areas of the land. Another significant patent is for an agricultural spraying device. This device features main dispensing units arranged on a sprayer boom, designed to dispense liquid onto agricultural land. The innovative design includes a distributor housing with a liquid inlet and multiple outlets, enabling selective advancement or distribution of liquid.

Career Highlights

Throughout his career, Stefan Kiefer has worked with reputable companies such as Amazonen-Werke H. Dreyer Se & Co. Kg and Amazonen-Werke H. Dreyer GmbH & Co. Kg. His experience in these organizations has contributed to his expertise in agricultural technology and innovation.

Collaborations

Kiefer has collaborated with notable colleagues, including Timo Klemann and Volker Ehlen. These partnerships have likely enhanced his work and contributed to the development of his patents.

Conclusion

Stefan Kiefer's innovative contributions to agricultural technology demonstrate his commitment to improving farming practices. His patents reflect a deep understanding of the challenges faced in agriculture and offer practical solutions to enhance efficiency.

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]
Loading…