Marbach am Neckar, Germany

Christian Stewen

This inventor holds 4 USPTO granted patents and 28 EPO patents. Top assignees: Alfred Kaercher Gmbh & Co. Kg, Alfred Kärcher Se Co. Kg. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Christian Stewen. Retrieved from https://idiyas.com/inventor/christian-stewen-lt11nn0o

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


% Patents Active = 100.0

 

Average Co-Inventor Count = 2.7

ph-index = 3

Forward Citations = 21(Granted Patents)


Location History:

  • Marbach a.N., DE (2011 - 2012)
  • Marbach, DE (2019)

Company Filing History:


Years Active: 2011-2025

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4 patents (USPTO):Explore Patents

Title: Christian Stewen: Innovator in Cleaning Technology

Introduction

Christian Stewen is a notable inventor based in Marbach a.N., Germany. He has made significant contributions to the field of cleaning technology, holding a total of three patents. His innovative designs focus on enhancing the efficiency and functionality of cleaning appliances.

Latest Patents

One of his latest patents is a portable hard surface cleaning appliance. This device features a suction nozzle with a suction opening, equipped with at least one drawing-off lip. It includes a suction unit that is in flow connection with the suction nozzle for sucking up a liquid-air mixture. The design incorporates a separation chamber that separates liquid from the mixture, along with a tank accommodating compartment for a dirty liquid tank. This innovative appliance is designed for ease of use and effective cleaning.

Another significant patent is for a vacuum cleaning device. This invention comprises a dirt collection container with a suction inlet, which is connected to at least one suction unit via a filter and suction line. It also features an external air inlet that can be closed by a closing valve. The design aims to simplify the structure of the closing valve while ensuring that the filter can be cleaned quickly and efficiently.

Career Highlights

Christian Stewen has worked with prominent companies in the cleaning industry, including Alfred Kärcher GmbH & Co. KG and Alfred Kärcher SE & Co. KG. His experience in these organizations has contributed to his expertise in developing innovative cleaning solutions.

Collaborations

Throughout his career, Christian has collaborated with talented individuals such as Uli Haeussermann and Anne Oberländer. These partnerships have fostered a creative environment that has led to the development of his patented technologies.

Conclusion

Christian Stewen is a distinguished inventor whose work in cleaning technology has resulted in practical and innovative solutions. His patents reflect a commitment to improving the efficiency of cleaning appliances, making a significant impact in the industry.

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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