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Forward Citations = 250

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14 inventors (with patents filed for the assignee):

Tsuhan Chen (1 out of 15 patents)

Joseph S Kovalchick (1 out of 3 patents)

John C Baumhauer, Jr (1 out of 22 patents)

4. Ralph A Treder (1 out of 5 patents)

5. William Vincent Jackwicz (1 out of 12 patents)

6. Frederick Henry Koster (1 out of 3 patents)

7. Harold J Hershey (1 out of 4 patents)

8. Harry Kaemmerer (1 out of 2 patents)

9. Tommy L Poteat (1 out of 5 patents)

10. Theodore J Sikorski (1 out of 1 patent)

11. M Fatein Mahmoud (1 out of 1 patent)

12. Sompoppol Jampathom (1 out of 7 patents)

13. Charles F Liebler (1 out of 6 patents)

14. Richard M Joffe (1 out of 19 patents)

7 patents: Sort by Forward Citations

1. 6330023 - Video signal processing systems and methods utilizing automated speech analysis (2001-12-11),

2. 4882743 - Multi-location video conference system (1989-11-21),

3. D301143 - Telephone stand (1989-05-16),

4. 4731663 - Method and apparatus for color identification (1988-03-15),

5. 4533795 - Integrated electroacoustic transducer (1985-08-06),

6. 4175271 - Helical video tape insert recording editing method with flying erase (1979-11-20),

7. 4093826 - Tone signaling conversion apparatus (1978-06-06),

American Telephone and Telegraph Corporation (AT&T) is a telecommunications company providing wireless, voice, video, data, and internet services to consumers, businesses, and government agencies. With a history dating back to 1885, AT&T is one of the largest telecommunications companies in the world, serving millions of customers. They offer a range of products and services, including mobile phones, home phone services, internet, and TV packages.

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USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#7 in undefined, NY

#2,235 in New York

#38,762 in US

NY, United States of America

American Telephone and Telegraph Corporation