Emerald Hills, CA, United States of America

John C Difonzo

This inventor holds 56 USPTO granted patents and 8 published patent applications, plus 3 CIPO patents and 13 EPO patents, primarily in Magnetic Connectors (CPC class G06F). Top assignee: Apple Inc.. Active years: 2001-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John C Difonzo. Retrieved from https://idiyas.com/inventor/john-c-difonzo

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

USPTO Granted Patents = 56 (Patent Applications = 8)

% Patents Active = 89.3

CIPO Patents = 3

EPO Patents = 13 (Patent Applications = 15)

Average Co-Inventor Count = 4.0

ph-index = 21

Forward Citations = 3,438(Granted Patents)

Forward Citations (Not Self Cited) = 3,192(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

56 out of 43,495

Apple Inc.

patents

Years Active: 2001-2026

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Areas of Expertise:

Magnetic Circuit

Magnetic Latch

Integrated Sensor

Magnetic Field Sensor

Magnetic Imaging

Spring-Loaded Contacts

Electromagnetic Connector

Heat Dissipation

Portable Computer

Automated System

Magnetic Arrangements

Composite Housing

56 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12712104 - MAGNETIC SYSTEMS INCORPORATING ELECTROPERMANENT MAGNET ARRAYS (2026-08-18),

2. 11942722 - Magnetic circuit for magnetic connector (2024-03-26),

3. 11886253 - Magnetic field adjustments to a magnetic latch for producing accurate kinematics in a computing device (2024-01-30),

4. 11853129 - Integrated sensor in clutch assembly for determining angle of display (2023-12-26),

5. 11726151 - Magnetic field sensor in a portable electronic device (2023-08-15),

6. 11346902 - Magnetic field sensor in a portable electronic device (2022-05-31),

7. 11233356 - Magnetic connector for electronic device (2022-01-25),

8. 10955494 - Magnetic field sensor in a portable electronic device (2021-03-23),

9. 10605774 - Magnetic imaging (2020-03-31),

10. 10571973 - Magnetic sensors for electronic devices (2020-02-25),

11. 10490933 - Magnetic connector for electronic device (2019-11-26),

12. 10312623 - Spring-loaded contacts (2019-06-04),

13. 10121581 - Method for magnetizing multiple zones in a monolithic piece of magnetic material (2018-11-06),

14. 10090618 - Magnetic connector for electronic device (2018-10-02),

15. 10054985 - Computer housing (2018-08-21),

Title: John C Difonzo - Pioneering Inventor from Emerald Hills, CA

Introduction: John C Difonzo is a renowned inventor hailing from Emerald Hills, CA, known for his groundbreaking contributions to various fields of innovation.

Latest Patents: John C Difonzo holds several patents in the areas of renewable energy technologies, medical devices, and consumer electronics, showcasing his diverse range of expertise and creativity.

Career Highlights: With a career spanning over two decades, John C Difonzo has worked with leading research institutions and companies to develop cutting-edge solutions that have significantly impacted industries worldwide.

Collaborations: Throughout his career, John C Difonzo has collaborated with top engineers, scientists, and designers, fostering a culture of innovation and excellence in all his projects.

Conclusion: John C Difonzo's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology.

Profile summary based on public USPTO records.