For the Inventor, By the Inventor

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Herndon, VA, United States of America

International Telesystems Corporation

USPTO Granted Patents = 16

CIPO Patents = 1

Forward Citations = 541

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13 inventors (with patents filed for the assignee):

Bruno A Rist (4 out of 8 patents)

Adrian J DeVries (4 out of 4 patents)

James J Frimmel, Jr (4 out of 4 patents)

4. Richard N Deglin (3 out of 3 patents)

5. Thomas Ouellette (3 out of 3 patents)

6. John Ramsay (2 out of 2 patents)

7. Dzu-Wan Syu (2 out of 2 patents)

8. Alan R Trefzger (2 out of 4 patents)

9. Bassem M Girgis (1 out of 1 patent)

10. Thomas Quellette (1 out of 1 patent)

11. Charles A Baldi (1 out of 1 patent)

12. Douglas A Samuelson (1 out of 1 patent)

13. Lester A Potter (1 out of 1 patent)

14. Devries Adrian J (0 patent)

15. Rist Bruno A (0 patent)

16 patents: Sort by Forward Citations

1. 5446795 - Universal decoder for television signal scramble systems (1995-08-29),

2. 5425093 - System for integrating a stand alone inbound automatic call distributor (1995-06-13),

3. 5327491 - Method for pacing calls to reduce nuisance calls (1994-07-05),

4. 5235640 - Master decoder for television signal scramble systems (1993-08-10),

5. 5179589 - Call progress pacing (1993-01-12),

6. 5007000 - Classification of audio signals on a telephone line (1991-04-09),

7. 4933964 - Pacing of telephone calls for call origination management systems (1990-06-12),

8. 4903297 - Restricted access television transmission system (1990-02-20),

9. 4894827 - Redundancy and buffering circuits (1990-01-16),

10. 4875157 - Alternate memory addressing for information storage and retrieval (1989-10-17),

11. 4864605 - Telephone trunk interface circuit (1989-09-05),

12. 4858120 - System for regulating arrivals of customers to servers (1989-08-15),

13. 4829514 - Digital voice recording and reproduction and telephone network (1989-05-09),

14. 4825467 - Restricted access television transmission system (1989-04-25),

15. 4817130 - Call management system with protocol converter and port controller (1989-03-28),

International Telesystems Corporation is a leading provider of advanced telecommunications solutions for businesses worldwide. With over 20 years of experience in the industry, we offer a comprehensive range of services including voice, data, and video communication solutions. Our cutting-edge technology and unmatched customer support make us the preferred choice for organizations looking to streamline their communication systems and enhance productivity.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

16 Patents

#13 in Herndon, VA

#340 in Virginia

#19,278 in US

#36,652 in the World

Herndon, VA, United States of America

International Telesystems Corporation

Forward Citations = 541

13 inventors:

Bruno A Rist (4 out of 8 patents)

Adrian J DeVries (4 out of 4 patents)

James J Frimmel, Jr (4 out of 4 patents)

4. Richard N Deglin (3 out of 3 patents)

5. Thomas Ouellette (3 out of 3 patents)

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