For the Inventor, By the Inventor

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St. Charles, IL, United States of America

Teltrend, Inc.

USPTO Granted Patents = 25

Forward Citations = 241

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17 inventors (with patents filed for the assignee):

Laurence L Sheets (10 out of 14 patents)

Frank X Garcia (6 out of 7 patents)

Nicholas J Arnone (3 out of 4 patents)

4. Peter W Pesetski (3 out of 4 patents)

5. Bruce R Miller (3 out of 4 patents)

6. John A Washburn (3 out of 3 patents)

7. Richard A Yndestad (3 out of 7 patents)

8. Eric P Bergstrom (3 out of 3 patents)

9. Van Nguyen (2 out of 2 patents)

10. Guy C Cerulli (2 out of 2 patents)

11. Michael T Fitzgerald (2 out of 4 patents)

12. Chan-En Li (1 out of 2 patents)

13. James Albanese (1 out of 1 patent)

14. Earl L Smith (1 out of 3 patents)

15. Daniel C Peterson (1 out of 1 patent)

Core Competencies:

Remote Reporting System

Digital Transmission Lines

Network Interface Unit

Hybrid Balancing

AGC Amplifier

Ground Fault Detector

Error Correction

Performance Monitoring

Multiplexing Interface

Trans-hybrid Loss Compensator

Caller Identification

Testing System

25 patents: Sort by Forward Citations

1. 6151691 - Remote reporting system for digital transmission line elements (2000-11-21),

2. 6111949 - Method of rapid automatic hybrid balancing (2000-08-29),

3. 5974137 - AGC amplifier for two-wire line conditioner (1999-10-26),

4. 5963638 - Adjustable hybrid having improved biasing configuration (1999-10-05),

5. 5953412 - Method and apparatus for controlling line conditioner equalizer (1999-09-14),

6. 5907614 - High density telephone network interface unit (1999-05-25),

7. 5889785 - Remote reporting system for digital transmission line elements (1999-03-30),

8. 5862200 - Ground fault detector for T1 span equipment (1999-01-19),

9. 5691998 - Data transmission protection circuit with error correction (1997-11-25),

10. 5689546 - Performance monitoring system for T1 telephone lines (1997-11-18),

11. 5682385 - Enhancement for a multiplexing telecommunications interface (1997-10-28),

12. 5680405 - Remote reporting system for digital transmission line elements (1997-10-21),

13. 5631956 - High density telephone network interface unit (1997-05-20),

14. 5566239 - Floating digital loop carrier telephone interface (1996-10-15),

15. 5555274 - Phantom data link for digital transmission lines (1996-09-10),

Teltrend, Inc. is a technology company based in St. Charles, Illinois, specializing in the development and manufacturing of advanced telecommunications equipment. The company focuses on providing innovative solutions for voice and data communication, catering to a diverse range of industries. With a commitment to quality and performance, Teltrend leverages its expertise in electronic design and engineering to deliver reliable products that enhance connectivity and operational efficiency for its clients.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

25 Patents

#2 in St. Charles, IL

#695 in Illinois

#13,350 in US

#25,681 in the World

St. Charles, IL, United States of America

Teltrend, Inc.

Forward Citations = 241

17 inventors:

Laurence L Sheets (10 out of 14 patents)

Frank X Garcia (6 out of 7 patents)

Nicholas J Arnone (3 out of 4 patents)

4. Peter W Pesetski (3 out of 4 patents)

5. Bruce R Miller (3 out of 4 patents)

Please report any incorrect information to [email protected]

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