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Escondido, CA, United States of America

Frederick J Jeffers

USPTO Granted Patents = 54

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:

41 out of 21,594

Eastman-kodak Company

Eastman Technology, Inc.

Cummins-allison Corporation

Spin Physics, Inc.

6. 1 out of 414

Iomega Corporation

Years Active: 1976-2014

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Areas of Expertise:

Currency Discrimination

Ferromagnetic Detection

Magnetic Resonance Imaging

Magnetic Recording Media

Magnetic Field Shielding

Document Authentication

Magnetoresistive Sensors

High Sensitivity Magnetometers

Magnetic Playback Head

Magnetic Card Systems

X-ray Imaging Screens

Magnetic Duplication Techniques

54 patents (USPTO):Sort by Forward CitationsExplore 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.

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