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For the Inventor, By the Inventor

Montreal, Canada

Northern Telecom Limited


USPTO Granted Patents = 2,276


Trademarks = 7

Forward Citations = 62,516

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2,211 inventors (with patents filed for the assignee):

goldMedal Clifford D Read (55 out of 68 patents)

silverMedal Ernst A Munter (43 out of 55 patents)

bronzeMedal John N Garner (31 out of 31 patents)

4.  Michael Brown (27 out of 27 patents)

5.  George Debortoli (24 out of 28 patents)

6.  Leonard J Charlebois (22 out of 22 patents)

7.  Jorg-Hein Walling (17 out of 19 patents)

8.  Stanley D Rosenbaum (17 out of 18 patents)

9.  Helmut H Lukas (17 out of 23 patents)

10.  Beverley W Gumb (17 out of 17 patents)

11.  Kevin C Byron (16 out of 30 patents)

12.  Joseph P Ellul (15 out of 15 patents)

13.  Richard E Epworth (14 out of 53 patents)

14.  Alan Frank Graves (13 out of 91 patents)

15.  Anthony K Brown (13 out of 20 patents)


Core Competencies:
Unified Messaging
Digital Telephone Switchboard
Broadband Wireless Access
Cellular Radio Communications
Opto-Electronic Device Packaging
Adaptive Radio Communications
Telecommunications Network Architecture
Mobile Satellite Systems
Network Management Systems
Voice-over-ATM Networks
CDMA Power Control
Optical Amplifiers

2,276 patents:

1. 8687773 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls (2014-04-01),
2. 7162014 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls (2007-01-09),
3. 6868144 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls (2005-03-15),
4. 6697842 - Dynamic context filters for communication and information management (2004-02-24),
5. 6584111 - ABR flow control using single bit congestion indication and wavelet transform filtering (2003-06-24),
6. 6563814 - Method and apparatus for controlling the operation of a digital telephone switchboard (2003-05-13),
7. 6501766 - Generic bus system (2002-12-31),
8. 6421328 - Neighborhood list assimilation for cell-based microsystem (2002-07-16),
9. 6411629 - Data interleaving method (2002-06-25),
10. 6407438 - Semiconductor opto-electronic device packaging (2002-06-18),
11. 6400698 - State machine and random reserve access protocol for IS136 based TDMA packet date mobile stations (2002-06-04),
12. 6381219 - Channel integrity in a voice-on-ATM network (2002-04-30),
13. 6370654 - Method and apparatus to extend the fault-tolerant abilities of a node into a network (2002-04-09),
14. 6363262 - Communication device having a wideband receiver and operating method therefor (2002-03-26),
15. 6363187 - Chromatic dispersion compensation (2002-03-26),
Northern Telecom Limited (NTL) is a leading provider of telecommunications solutions, specializing in advanced networking and communication technologies. With a diverse portfolio of products and services, NTL offers innovative solutions for businesses of all sizes. Their expertise includes data networking, unified communications, cloud solutions, and managed services. The company is committed to delivering reliable and scalable solutions tailored to meet the unique needs of each client. Visit their website to learn more about NTL and explore their comprehensive range of telecommunications solutions.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

2,276 Patents

#2 in Montreal

#5 in Canada

#432 in the World

...
Montreal, Canada

Northern Telecom Limited

Forward Citations = 62,516

2,211 inventors:

goldMedal Clifford D Read (55 out of 68 patents)

silverMedal Ernst A Munter (43 out of 55 patents)

bronzeMedal John N Garner (31 out of 31 patents)

4.  Michael Brown (27 out of 27 patents)

5.  George Debortoli (24 out of 28 patents)

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