Munich, Germany

Dirk Friedrich

This inventor holds 2 USPTO granted patents. Top assignee: Siemens Aktiengesellschaft. Active years: 1995-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dirk Friedrich. Retrieved from https://idiyas.com/inventor/dirk-friedrich-kvfs0cje

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 = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1995-1996

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2 patents (USPTO):Explore Patents

Title: Dirk Friedrich: Innovator in Inverter Technology

Introduction

Dirk Friedrich is a notable inventor based in Munich, Germany. He has made significant contributions to the field of electronics, particularly in inverter technology. With a total of 2 patents to his name, Friedrich continues to push the boundaries of innovation.

Latest Patents

Friedrich's latest patents include an "Inverter stage having diode load and ring oscillator using same." This invention features an inverter stage that incorporates a supply voltage terminal and a reference potential terminal. It utilizes an npn transistor with a base terminal for receiving an input signal, a collector terminal for supplying an output signal, and an emitter terminal. A controllable current source is connected between the emitter terminal of the transistor and the reference potential terminal. Additionally, a series circuit of at least two diodes is connected between the supply voltage terminal and the collector terminal of the transistor. The design also includes a symmetrical inverter stage assembly with two inverter stages connected in parallel.

Another significant patent is the "Common mode logic multiplexer configuration." This multiplexer configuration consists of at least one first and one second group of transistors, each containing one first, one second, and at least one third transistor. Current sources are connected to a first supply potential terminal, and the emitters of the transistors in each group are interconnected. The configuration allows for efficient data signal processing through complementary selection signals.

Career Highlights

Dirk Friedrich is currently employed at Siemens Aktiengesellschaft, a leading global technology company. His work at Siemens has allowed him to collaborate with other talented professionals in the field of electronics.

Collaborations

One of his notable coworkers is Wilhelm Wilhelm, with whom he has shared insights and expertise in their projects.

Conclusion

Dirk Friedrich's contributions to inverter technology and his innovative patents highlight his role as a significant figure in the electronics industry. His work continues to inspire advancements in technology and engineering.

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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