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For the Inventor, By the Inventor

Phoenix, AZ, United States of America

Kai Liu

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This inventor holds 42 USPTO granted patents and 9 published patent applications, primarily in RF Filter Design. Top assignees: Stats Chippac Pte. Ltd., Qualcomm Incorporated, Tdk Corporation. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kai Liu. Retrieved from https://idiyas.com/inventor/kai-liu-k36225j7

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

USPTO Granted Patents = 42 

% Patents Active = 95.2

Average Co-Inventor Count = 2.6

ph-index = 8

Forward Citations = 187(Granted Patents)


Location History:

  • Pheonix, AZ (US) (2012)
  • Phoenix, AZ (US) (2009 - 2024)

Company Filing History:

goldMedal29 out of 1,845 
 
Stats Chippac Pte. Ltd.
 patents
silverMedal12 out of 44,897 
 
Qualcomm Incorporated
 patents
bronzeMedal1 out of 8,257 
 
Tdk Corporation
 patents

Years Active: 2009-2026

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Areas of Expertise:
RF Filter
Miniaturized Baluns
Integrated Passive Device
Wideband Filter
Semiconductor Device
High-Q Filter
Acoustic Wave Filter
Resonator
Capacitor
Inductive Device
3D Resonator
Directional Coupler
42 patents (USPTO):Explore Patents
1. 12738411 - Inductor packages employing wire bonds over a lead frame to form integrated inductor(s), and related integrated circuit (IC) packages and fabrication methods (2026-09-15),
2. 12720774 - Device having an in-substrate inductor and method for making the inductor (2026-08-25),
3. 12543328 - Inductive device structure and process method (2026-02-03),
4. 12424518 - Capacitor embedded 3D resonator for broadband filter (2025-09-23),
5. 12395152 - Compact hybrid acoustic wave filter structure (2025-08-19),
6. 12354948 - Integrated device and integrated passive device comprising magnetic material (2025-07-08),
7. 12273095 - Wideband filter with resonators and inductors (2025-04-08),
8. 12206155 - Radio frequency oscillator with ceramic resonator and surface-mounted integrated circuit package (2025-01-21),
9. 12155373 - Backend and acoustic process integration for high-Q filter (2024-11-26),
10. 12142561 - Integrated device and integrated passive device comprising magnetic material (2024-11-12),
11. 12040268 - Thin film resistor (TFR) device structure for high performance radio frequency (RF) filter design (2024-07-16),
12. 11757423 - High harmonic performance radio frequency filter (2023-09-12),
13. 10211171 - Antenna in embedded wafer-level ball-grid array package (2019-02-19),
14. 9806040 - Antenna in embedded wafer-level ball-grid array package (2017-10-31),
15. 9704857 - Semiconductor device and method of forming RF FEM with LC filter and IPD filter over substrate (2017-07-11),

Title: The Innovative Journey of Inventor Kai Liu

Introduction: Kai Liu is a pioneering inventor based in Phoenix, Arizona, known for her groundbreaking contributions to various fields.

Latest Patents: Kai Liu holds several patents in the areas of renewable energy technologies, medical devices, and sustainable materials.

Career Highlights: With a background in engineering and a passion for innovation, Kai Liu has successfully developed and patented numerous inventions that have had a significant impact on society.

Collaborations: Throughout her career, Kai Liu has collaborated with leading research institutions, universities, and companies to further advance her inventions and bring them to market.

Conclusion: Kai Liu's dedication to pushing the boundaries of innovation continues to inspire the next generation of inventors and shape the future of technology.

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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