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Morristown, NJ, United States of America

At&t Information Systems Inc.

USPTO Granted Patents = 243

Forward Citations = 8,228

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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:

Data Transmission Security

Digital Signal Processing

Multiprocessor Systems

Telephone Handset

Communication Workstation

Voice Switched Speakerphone

Adaptive Environment Control

Optical Coupler

Dynamic Directory Tabbing

Multi-Channel Memory Access

Virtual Execution

Telephony Solutions

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),

Company Overview

AT&T Information Systems Inc., based in Morristown, NJ, specializes in advanced communication systems, focusing on enhancing data transmission security and digital signal processing. The company is known for its innovations in multiprocessor systems and various telecommunication devices, including telephone handsets and communication workstations. Its expertise extends to voice-switched speakerphones and adaptive environment control technologies, positioning it as a key player in the evolving landscape of communication solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

243 Patents

#5 in Morristown, NJ

#82 in New Jersey

#1,753 in US

#3,569 in the World

Morristown, NJ, United States of America

At&t Information Systems Inc.

Forward Citations = 8,228

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: At&t Information Systems Inc.. Retrieved from https://idiyas.com/company/at-and-t-information-systems

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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