San Jose, CA, United States of America

Kostadin Dimitrov Djordjev

This inventor holds 76 USPTO granted patents and 41 published patent applications, plus 5 CIPO patents and 18 EPO patents, primarily in Ultrasonic Sensors (CPC class G06K). Top assignees: Qualcomm Incorporated, Qualcomm Mems Technologies, Inc., Agilent Technologies, Inc.. Active years: 2005-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kostadin Dimitrov Djordjev. Retrieved from https://idiyas.com/inventor/kostadin-dimitrov-djordjev

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

Calculating rank
USPTO Granted Patents = 76 

% Patents Active = 76.3

 

 

Average Co-Inventor Count = 4.2

ph-index = 10

Forward Citations = 415(Granted Patents)

Forward Citations (Not Self Cited) = 367(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Cupertino, CA (US) (2005 - 2006)
  • San Jose, CA (US) (2008 - 2021)
  • Los Gatos, CA (US) (2019 - 2023)

Company Filing History:


Years Active: 2005-2026

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Areas of Expertise:
Ultrasonic Fingerprint Sensor
Photoacoustic Sensor
Multi-Frequency Sensor
Sensor Array Control
Under-Display Technology
Acoustic Imaging
Liveness Sensing
Piezoelectric Polymer
Anti-Spoofing Devices
Flexible Substrate
High-Impedance Layers
Compact Sensor Design
76 patents (USPTO):Explore Patents

Title: The Innovations of Kostadin Dimitrov Djordjev in the Field of Ultrasonic Technology

Introduction

Kostadin Dimitrov Djordjev, based in San Jose, California, is a prolific inventor with an impressive portfolio of 56 patents. His work, particularly in the realm of ultrasonic fingerprint sensors for foldable displays, has garnered significant attention in technology circles. Djordjev’s innovations represent cutting-edge advancements in user authentication and display technology, responding to the growing demand for seamless integration in modern devices.

Latest Patents

Among his latest patented inventions is a sophisticated apparatus that includes an ultrasonic sensor stack and a foldable display stack. This assembly features a transmission enhancement layer that significantly improves the performance of ultrasonic waves in a first frequency range. Djordjev has also developed an innovative configuration of an ultrasonic fingerprint sensor relative to a flexible display, introducing an acoustics configuration layer to optimize signal strength for more accurate fingerprint detection. These patents exemplify his commitment to enhancing device functionality while maintaining user convenience.

Career Highlights

Throughout his career, Djordjev has made substantial contributions to renowned technology companies, including Qualcomm Incorporated and Qualcomm MEMS Technologies, Inc. His tenure at these organizations has allowed him to push the boundaries of technology and develop groundbreaking solutions that propel the industry forward. Djordjev's insight into ultrasonic technology continues to influence the future design of portable devices.

Collaborations

Djordjev has collaborated with notable colleagues in his field, such as Hrishikesh Vijaykumar Panchawagh and Jessica Liu Strohmann. These partnerships have fostered an environment of creativity and innovation, leading to remarkable advancements in the ultrasonic sensing technology landscape. The collaborative efforts in his projects highlight the importance of teamwork in achieving groundbreaking inventions.

Conclusion

Kostadin Dimitrov Djordjev's extensive work in ultrasonic technology undoubtedly positions him as a leading figure in the innovation space. His impressive list of patents reflects a commitment to enhancing user experience through technology. As new devices demand advanced features, Djordjev's contributions will remain pivotal in shaping the future of consumer electronics.

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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