Wolfratshausen, Germany

Karlheinz Schreyer

This inventor holds 5 USPTO granted patents and 2 published patent applications and 6 EPO patents. Top assignees: Siemens Aktiengesellschaft, Siemens Gebaudesicherheit Gmbh & Co. Ohg. Active years: 1981-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karlheinz Schreyer. Retrieved from https://idiyas.com/inventor/karlheinz-schreyer

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

USPTO Granted Patents = 5 

% Patents Active = 80.0

 

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1981-2009

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5 patents (USPTO):Explore Patents

Title: Karlheinz Schreyer: Radio-System and Safety-Alarm Inventions.

Introduction

Karlheinz Schreyer is an inventor associated with Wolfratshausen, Germany. His work includes radio communication methods designed for safety and alarm systems. He is credited with 5 patents.

Latest Patents

Schreyer’s listed patents include “Method of Radio Transmission in a Danger Alarm System.” The invention describes a battery-saving radio method that uses repeaters and cyclically activated receivers. Devices transmit a preamble that helps intended recipients determine whether to remain active and when to wake again to receive the data telegram.

Another listed invention is “Procedure for Registering a New Subscriber in a Radio System Through Routers.” In this method, a new subscriber searches for reachable participants, selects a router, and sends a registration request to a central system. If the request is accepted, the central system returns a subscriber number and system identifier, allowing the new device to join the radio network.

Career Highlights

Schreyer’s listed company affiliations include Siemens Aktiengesellschaft and Siemens Gebäudesicherheit GmbH & Co. OHG. The patent descriptions reflect work on radio networking and energy-efficient communication for danger-alarm systems.

Collaborations

His listed collaborators include Werner Schropp and Karla Oberstein.

Conclusion

Karlheinz Schreyer’s patent work focuses on practical radio-system technologies, including energy-conscious alarm transmission and router-assisted registration of new subscribers.

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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