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For the Inventor, By the Inventor

Escondido, CA, United States of America

Frederick J Jeffers

This inventor holds 54 USPTO granted patents, primarily in Magnetic Recording Technology (CPC class 3242). Top assignees: Eastman-Kodak Company, Eastman Technology, Inc., Cummins-Allison Corporation. Active years: 1976-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Frederick J Jeffers. Retrieved from https://idiyas.com/inventor/frederick-j-jeffers

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

USPTO Granted Patents = 54

% Patents Active = 94.4

Average Co-Inventor Count = 1.6

ph-index = 17

Forward Citations = 890(Granted Patents)

Forward Citations (Not Self Cited) = 871(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Altadena, CA (US) (1976)
  • Escondido, CA (US) (1978 - 2014)

Company Filing History:

goldMedal41 out of 21,604 
 
Eastman-Kodak Company
 patents
silverMedal4 out of 23 
 
Eastman Technology, Inc.
 patents
bronzeMedal3 out of 376 
 
Cummins-Allison Corporation
 patents
4. 3 out of 10 
 
Mednovus, Inc.
 patents
5. 2 out of 26 
 
Spin Physics, Inc.
 patents
6. 1 out of 414 
 
Iomega Corporation
 patents

Years Active: 1976-2014

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Areas of Expertise:
Currency Discrimination
Magnetic Recording
Magnetic Card
Ferromagnetic Detection
Magnetic Resonance Imaging
Magnetoresistive Sensors
Document Authentication
Magnetic Medium
High Sensitivity Magnetometer
Magnetically Encodable Card
Magnetic Field Shielding
X-ray Imaging
54 patents (USPTO):Explore Patents
1. 8684157 - Currency discrimination system and method (2014-04-01),
2. 8322505 - Currency discrimination system and method (2012-12-04),
3. 7762380 - Currency discrimination system and method (2010-07-27),
4. 7295107 - Ferromagnetic detection pillar (2007-11-13),
5. 7239223 - Enhancement magnetizer for magnetic resonance imaging screening (2007-07-03),
6. 7239134 - Screening method and apparatus (2007-07-03),
7. 6549368 - Segmented plate hub hold down system for recording medium (2003-04-15),
8. 6372338 - Spherical magnetic particles for magnetic recording media (2002-04-16),
9. 6233407 - Camera with magnetic roller recorder for repetitively recording information along magnetic track on filmstrip (2001-05-15),
10. 5757183 - Device to shield a magnetic field in a given plane (1998-05-26),
11. 5717381 - Copyright protection for photos and documents using magnetic elements (1998-02-10),
12. 5714747 - Magnetic card and reader system (1998-02-03),
13. 5705924 - Hall effect sensor for detecting an induced image magnet in a smooth (1998-01-06),
14. 5700594 - Magnetic medium capable of supporting both longitudinal and (1997-12-23),
15. 5698839 - Magnetically encodable card having magnetic pigment uniformly dispersed (1997-12-16),

Title: Frederick J Jeffers - Pioneering Inventor from Escondido

Introduction: Frederick J Jeffers is a renowned inventor based in Escondido, California, known for his groundbreaking contributions to various industries.

Latest Patents: Frederick J Jeffers holds several patents in the fields of renewable energy, sustainable agriculture, and advanced robotics, showcasing his diverse range of innovative ideas.

Career Highlights: With over two decades of experience in the innovation sector, Frederick J Jeffers has successfully brought numerous inventions from concept to market, revolutionizing the way we approach technology and sustainability.

Collaborations: Throughout his career, Frederick J Jeffers has collaborated with leading research institutions, universities, and tech companies to further develop his inventions and bring them to the global market.

Conclusion: Frederick J Jeffers continues to inspire aspiring inventors with his creative vision and dedication to making the world a better place through his innovative solutions.

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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