For the Inventor, By the Inventor

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Fort Worth, TX, United States of America

Tandy Corporation

USPTO Granted Patents = 130

Trademarks = 11

Forward Citations = 3,315

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93 inventors (with patents filed for the assignee):

Bryan K Clark (15 out of 17 patents)

Joel D Finegan (10 out of 11 patents)

Jerry J Heep (10 out of 15 patents)

4. Paul T Schreiber (9 out of 10 patents)

5. Robert Guerra (7 out of 7 patents)

6. Michael F Berger (7 out of 7 patents)

7. Bernard A Grae (7 out of 9 patents)

8. Steven Leininger (6 out of 8 patents)

9. Paul R Goldberg (5 out of 25 patents)

10. Carl K Wakeland (5 out of 7 patents)

11. Douglas R Curtis (5 out of 9 patents)

12. Nam D Tran (4 out of 5 patents)

13. Ernest D Boshek (4 out of 4 patents)

14. Peter H Haagen (4 out of 4 patents)

15. Dale Chatham (4 out of 6 patents)

Core Competencies:

Optical Media

Erasable Recording

Audio Processing

Dynamic VOX Circuit

Overvoltage Protection

Echo Cancellation

Automatic Detection

Digital Multimeter

Universal Remote Control

Optical Scanning

Compact Disk Systems

Video Data Encoding

130 patents: Sort by Forward Citations

1. 5955996 - Tunable fiberglass antenna (1999-09-21),

2. 5742671 - Self-adjusting telephone line status detection indication (1998-04-21),

3. 5657384 - Full duplex speakerphone (1997-08-12),

4. 5606481 - Overvoltage protection for battery powered equipment (1997-02-25),

5. 5594601 - Method of programming audio tracks in a sequential medium (1997-01-14),

6. 5563952 - Automatic dynamic VOX circuit (1996-10-08),

7. 5548784 - Automatic disk change detection without causing head movement by step (1996-08-20),

8. 5533120 - Acoustic feedback cancellation for equalized amplifying systems (1996-07-02),

9. 5480325 - Coaxial connector plug and method for assembly (1996-01-02),

10. 5473686 - Echo cancellation apparatus (1995-12-05),

11. 5467463 - System independent timing reference for computer (1995-11-14),

12. 5434394 - Automated order and delivery system (1995-07-18),

13. 5424903 - Intelligent power switcher (1995-06-13),

14. 5418910 - Dual buffer cache system for transferring audio compact disk subchannel (1995-05-23),

15. 5414859 - Interprocessor communication protocol with built-in error prevention (1995-05-09),

Company Overview

Tandy Corporation, headquartered in Fort Worth, Texas, specializes in optical data storage technologies. The company is known for its innovations in optical media and erasable recording, contributing significantly to advancements in audio processing and related fields. Tandy's core technologies include dynamic VOX circuits, overvoltage protection, echo cancellation, and automatic detection systems. With a focus on enhancing data storage solutions, Tandy Corporation plays a pivotal role in the evolution of optical technology and its applications across various industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

130 Patents

#8 in Fort Worth, TX

#167 in Texas

#2,982 in US

#6,184 in the World

Fort Worth, TX, United States of America

Tandy Corporation

Forward Citations = 3,315

93 inventors:

Bryan K Clark (15 out of 17 patents)

Joel D Finegan (10 out of 11 patents)

Jerry J Heep (10 out of 15 patents)

4. Paul T Schreiber (9 out of 10 patents)

5. Robert Guerra (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tandy Corporation. Retrieved from https://idiyas.com/company/tandy

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

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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