Karlstadt, Germany

Friedrich Johann Zapf

This inventor holds 21 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Exhaust Aftertreatment Systems. Top assignees: Hydraulik-Ring Gmbh, Cummins Emission Solutions Inc., Cummins Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Friedrich Johann Zapf. Retrieved from https://idiyas.com/inventor/friedrich-johann-zapf

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

Calculating rank
USPTO Granted Patents = 21 

% Patents Active = 66.7

 

Average Co-Inventor Count = 2.8

ph-index = 7

Forward Citations = 100(Granted Patents)


Company Filing History:


Years Active: 2002-2026

Loading Chart...
Loading Chart...
Areas of Expertise:
Doser Mount
Dosing Module
Filtration Assembly
Exhaust-Gas Aftertreatment
SCR Device
Pressure Control Valve
Throttle Valve
Proportional Solenoid Valve
Hydraulic Valve
Directional Seat Valve
Compensation Device
Urea-Water Solution
21 patents (USPTO):Explore Patents

Title: **Friedrich Johann Zapf: Innovator in Aftertreatment Systems for Internal Combustion Engines**

Introduction

Friedrich Johann Zapf, an inventor based in Karlstadt, Germany, is known for his significant contributions to the field of engineering, particularly in aftertreatment systems for internal combustion engines. With an impressive portfolio comprising 19 patents, Zapf has established himself as a notable figure in innovation and invention.

Latest Patents

Among his latest innovations, Zapf has developed groundbreaking patents that enhance the efficiency and functionality of aftertreatment systems. One such invention is a **dosing module for use in aftertreatment systems for internal combustion engines**. This system includes various components, such as an inlet exhaust section and a first dosing module, which is specifically designed to selectively dose exhaust with reductant. The second dosing module operates similarly along the outlet exhaust section, improving the treatment of exhaust emissions.

Another significant patent is the **filtration assembly for use in aftertreatment systems for internal combustion engines**. This assembly features a unique design with an outer and inner housing, where the inner housing can transition between different states. This innovation ensures effective filtration of reductant and optimizes the aftertreatment process.

Career Highlights

Throughout his career, Friedrich Johann Zapf has worked with prominent companies such as Hydraulik-Ring GmbH and Cummins Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions for engine aftertreatment systems.

Collaborations

Zapf has collaborated with notable professionals in the industry, including his coworkers Rolf Neuhaus and Heico Stegmann. These partnerships have likely fostered knowledge exchange and driven advancements in their respective fields, further enhancing the impact of Zapf's inventions.

Conclusion

Friedrich Johann Zapf's contributions to technology and engineering exemplify the spirit of innovation. His advancements in aftertreatment systems demonstrate a commitment to improving environmental standards and enhancing the efficiency of internal combustion engines. With a substantial number of patents to his name, Zapf continues to inspire future inventors and innovators 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]
Loading…