For the Inventor, By the Inventor

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Tempe, AZ, United States of America

Inter-Tel, Inc.

USPTO Granted Patents = 34

% Expired Patents = 2.9

EPO Patents = 3

Trademarks = 2

Forward Citations = 464

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37 inventors (with patents filed for the assignee):

Joseph Weidinger (9 out of 10 patents)

David E Williams (5 out of 5 patents)

Jerry L Holsinger (4 out of 8 patents)

4. Robert Lawrence Gallick (3 out of 9 patents)

5. David L Lyon (3 out of 5 patents)

6. Michael McLaughlin (2 out of 47 patents)

7. N Thomas Peiffer, Jr (2 out of 3 patents)

8. Toby R Ambrose (2 out of 2 patents)

9. Clark C Rines (2 out of 2 patents)

10. David E Mello (2 out of 2 patents)

11. Don I Falkenstein (2 out of 5 patents)

12. Frank B Lezotte (2 out of 2 patents)

13. Billy Verso (1 out of 14 patents)

14. Mark Joseph Dancho (1 out of 27 patents)

15. Mervyn Wongso (1 out of 6 patents)

34 patents: Sort by Forward Citations

1. 8103722 - Endpoint status notification system (2012-01-24),

2. 7995721 - System and method for remote access to a telephone (2011-08-09),

3. 7818295 - Methods for handling communication requests received for former users of a communication system (2010-10-19),

4. 7778399 - System and method for real-time call log status (2010-08-17),

5. 7600044 - System and method for networked endpoint registration (2009-10-06),

6. 7600006 - Peer-to-peer distribution of firmware (2009-10-06),

7. 7526079 - System and method for data attachment in live call transfers (2009-04-28),

8. 7398215 - Prompt language translation for a telecommunications system (2008-07-08),

9. D569865 - Voice over internet protocol device (2008-05-27),

10. D541264 - PBX communication system (2007-04-24),

11. 7133465 - Modified Tomlinson-Harashima precoding method circuit for infinite impulse response (IIR) channels (2006-11-07),

12. D529892 - Hybrid voice communication system (2006-10-10),

13. 7031443 - System and method for remote access to a telephone (2006-04-18),

14. 6999431 - Voice over internet protocol (2006-02-14),

15. 6944215 - Method and apparatus for transmitting data from an analogue modem to a digital modem through an analogue channel (2005-09-13),

Inter-Tel, Inc. specializes in advanced telecommunications solutions, focusing on the development and manufacturing of innovative communication systems. The company is known for its expertise in voice and data integration, offering products that enhance connectivity and streamline business operations. With a strong presence in the telecommunications sector, Inter-Tel serves a diverse range of clients, providing tailored solutions that meet the evolving needs of modern communication environments.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Inter-Tel, Inc.

34 Patents

#19 in Tempe, AZ

#116 in Arizona

#9,991 in US

#19,594 in the World

Tempe, AZ, United States of America

Inter-Tel, Inc.

Forward Citations = 464

37 inventors:

Joseph Weidinger (9 out of 10 patents)

David E Williams (5 out of 5 patents)

Jerry L Holsinger (4 out of 8 patents)

4. Robert Lawrence Gallick (3 out of 9 patents)

5. David L Lyon (3 out of 5 patents)

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