George Francis Cardas

This inventor holds 8 USPTO granted patents and 1 published patent application. Top assignees: Cardas Audio Ltd., Tp Orthodontics Inc., Other. Active years: 1986-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: George Francis Cardas. Retrieved from https://idiyas.com/inventor/george-francis-cardas

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

USPTO Granted Patents = 8 (Patent Applications = 1)

% Patents Active = 62.5

Average Co-Inventor Count = 1.0

ph-index = 4

Forward Citations = 69(Granted Patents)

Location History:

Ontario, CA (US) (1986 - 1990)
Bandon, OR (US) (1994 - 2019)

Company Filing History:

6 out of 834,570

Other

patents

Years Active: 1986-2019

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10212509 - Headphones with audio cross-connect (2019-02-19),

2. 9699565 - Loudspeaker using contour field hard magnet poles and yoke construction (2017-07-04),

3. 9288565 - Earphone system (2016-03-15),

4. 7674973 - Electrical conductor and cable utilizing same (2010-03-09),

5. 6004166 - Electrical connector for plural circuits (1999-12-21),

6. 5335282 - Signal summing non-microphonic differential microphone (1994-08-02),

7. 4980517 - Multi-strand electrical cable (1990-12-25),

8. 4628151 - Multi-strand conductor cable having its strands sized according to the (1986-12-09),

Title: George Francis Cardas: Innovator in Audio Technology

Introduction

George Francis Cardas is a notable inventor based in Bandon, Oregon, known for her contributions to audio technology. With a total of 8 patents, she has made significant advancements in headphone design and loudspeaker technology. Her innovative approach has garnered attention in the field of audio engineering.

Latest Patents

One of her latest patents is for headphones with an audio cross-connect. This invention features an acoustical cross-connect duct and includes multiple embodiments that enhance audio performance. The first embodiment utilizes a time delay circuit to generate a time-delayed stereo signal, while the second embodiment incorporates a Resistor-Inductor-Capacitor (RLC) circuit for improved sound quality. Another significant patent involves a loudspeaker design that employs contour field hard magnet poles and yoke construction. This design replaces traditional soft magnetic materials with critically formed hard magnetic structures, optimizing the magnetic field for superior sound delivery.

Career Highlights

Throughout her career, George has worked with various companies, including Tp Orthodontics Inc. Her experience in the industry has allowed her to develop innovative solutions that address common challenges in audio technology.

Collaborations

Due to space constraints, the details of her collaborations will not be included.

Conclusion

George Francis Cardas continues to be a pioneering force in audio technology, with her patents reflecting her commitment to innovation and excellence in sound engineering. Her work has undoubtedly left a lasting impact on the industry.

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]

1 patent pending: