Urbana, IL, United States of America

Predrag Hrnjak

This inventor holds 5 USPTO granted patents. Top assignee: Audi Ag. Active years: 2020-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Predrag Hrnjak. Retrieved from https://idiyas.com/inventor/predrag-hrnjak

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 = 4.8

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2020-2021

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Predrag Hrnjak

Introduction

Predrag Hrnjak is a notable inventor based in Urbana, IL (US). He has made significant contributions to the field of refrigeration technology, holding a total of 5 patents. His work focuses on improving the efficiency and functionality of evaporators in refrigerant circuits.

Latest Patents

Hrnjak's latest patents include two innovative designs for evaporators in refrigerant circuits. The first patent describes an evaporator with a bottom-side inlet chamber connected to an outlet side via evaporator tubes. This design features a separator that divides a two-phase liquid/vapour mixture into a vapour phase and a liquid phase. The vapour phase is directed through a bypass line to the outlet side, while the liquid phase is guided counter to gravity into the evaporator tubes, utilizing flat tubes with micro-channels. The second patent builds upon this concept, incorporating a first evaporator tube set that directs refrigerant from the inlet chamber to an upper-side deflecting chamber, enhancing the overall efficiency of the system.

Career Highlights

Predrag Hrnjak is currently employed at Audi AG, where he continues to innovate in the field of refrigeration technology. His expertise and dedication to improving refrigerant systems have made him a valuable asset to the company.

Collaborations

Hrnjak has collaborated with notable colleagues such as Hans Hammer and Andrew Musser. Their combined efforts contribute to the advancement of refrigeration technologies and the development of new solutions in the industry.

Conclusion

Predrag Hrnjak's contributions to refrigeration technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of efficient refrigerant systems.

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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