Munich, Germany

Karl Trey

This inventor holds 1 USPTO granted patent. Top assignee: Siemens Aktiengesellschaft. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl Trey. Retrieved from https://idiyas.com/inventor/karl-trey

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 = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1984

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1 patent (USPTO):Explore Patents

Title: Karl Trey: Inventor of a Piezoelectric Transducer Contacting Device

Introduction

Karl Trey is an inventor associated with Munich, Germany, and Siemens Aktiengesellschaft. His patent work includes a device designed to electrically connect tubular piezoelectric transducers in an ink-printing device.

Latest Patents

Trey is credited with 1 patent: “Device for Contacting Tubular Piezo-Electric Transducers.” The invention describes a printed circuit board with separate conductor paths and feedthrough holes corresponding to rows of transducer elements. Contact components connect to the inside and outside surfaces of each element, while flexible and resilient parts are soldered to the board’s conductor paths. This arrangement positions the transducer above its feedthrough hole and enables electrical current to be applied.

Career Highlights

The patent reflects work on electrical connections for tubular piezoelectric transducers used in ink-printing equipment. Its design combines internal and external contacts with flexible components to connect the transducers to a printed circuit board.

Collaborations

Klaus Bork and Rolf Humbs are identified as Trey’s coworkers. The available information does not specify their roles in the patent or their particular contributions.

Conclusion

Karl Trey’s recorded patent describes a practical contacting system for connecting tubular piezoelectric transducers in an ink-printing device.

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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