For the Inventor, By the Inventor

Enter assignee name

Morristown, NJ, United States of America

At&t Information Systems Inc.

USPTO Granted Patents = 243

Forward Citations = 8,204

Loading Chart...

Loading Chart...

412 inventors (with patents filed for the assignee):

Gordon E Sylvester (13 out of 59 patents)

John N McGarvey (12 out of 109 patents)

Chris G Johnson (10 out of 20 patents)

4. Gary J Grimes (7 out of 73 patents)

5. Stephen G Miggels (7 out of 47 patents)

6. Cecil William Farrow (5 out of 24 patents)

7. Donald M Genaro (5 out of 115 patents)

8. Richard J Cubbison, Jr (5 out of 10 patents)

9. Thomas J Kelly (5 out of 9 patents)

10. Sompoppol Jampathom (5 out of 7 patents)

11. Michael P Zambelli (5 out of 117 patents)

12. Richard M Joffe (5 out of 19 patents)

13. Norman W Petty (4 out of 34 patents)

14. Robert Louis Cupo (4 out of 23 patents)

15. Douglas C Smith (4 out of 15 patents)

Core Competencies:

Telephone Answering Machine

Wideband Transmission

Infrared Signal Detector

Data Transmission Security

Multiprocessor System

Voice Switched Speakerphone

Communication Workstation

Optical Coupler

Digital Delay Circuit

Frequency Hopping

Portable Computer Housing

Static Electric Discharge

243 patents: Sort by Forward Citations

1. 4959852 - Telephone answering machine having solid state and magnetic tape storage (1990-09-25),

2. D307748 - Keyboard (1990-05-08),

3. 4924492 - Method and apparatus for wideband transmission of digital signals (1990-05-08),

4. D307560 - Housing for an infrared signal detector (1990-05-01),

5. D306576 - Circuit module housing (1990-03-13),

6. D306429 - Circuit module mounting apparatus (1990-03-06),

7. 4902237 - Adaptor for surface mount and through-hole components (1990-02-20),

8. 4901348 - Data transmission security arrangement for a plurality of data stations (1990-02-13),

9. 4901346 - Computer controlled speakerphone for adapting to a communication line (1990-02-13),

10. 4901231 - Extended process for a multiprocessor system (1990-02-13),

11. 4899377 - Communication terminal telephone directory with dynamic directory tabbing (1990-02-06),

12. 4898444 - Non-invasive optical coupler (1990-02-06),

13. 4897798 - Adaptive environment control system (1990-01-30),

14. 4896350 - Arrangement for providing a call-connection service (1990-01-23),

15. D305538 - Communications workstation (1990-01-16),

AT&T Information Systems Inc. is a global telecommunications company providing a wide range of communication and information technology services. As a leader in the industry, we offer solutions including networking, voice and data communications, cloud computing, cybersecurity, and more. Our mission is to connect people, businesses, and things globally to create a more connected world. Visit our website to learn more about our services and how we can help your business succeed.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

243 Patents

#4 in Morristown, NJ

#83 in New Jersey

#1,668 in US

#3,433 in the World

Morristown, NJ, United States of America

At&t Information Systems Inc.

Forward Citations = 8,204

412 inventors:

Gordon E Sylvester (13 out of 59 patents)

John N McGarvey (12 out of 109 patents)

Chris G Johnson (10 out of 20 patents)

4. Gary J Grimes (7 out of 73 patents)

5. Stephen G Miggels (7 out of 47 patents)

Please report any incorrect information to support@idiyas.com

Loading…