For the Inventor, By the Inventor

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Oak Brook, IL, United States of America

Wescom Switching, Inc.

USPTO Granted Patents = 16

Forward Citations = 534

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16 inventors (with patents filed for the assignee):

Satyan G Pitroda (9 out of 57 patents)

John Frederick Regan (6 out of 23 patents)

Byung C Min (5 out of 5 patents)

4. Carl J Stehman (3 out of 5 patents)

5. William A Fechalos (2 out of 12 patents)

6. Bernard J Pepping (1 out of 2 patents)

7. Tej N Chaddha (1 out of 1 patent)

8. Ronald C Fischer (1 out of 1 patent)

9. Robert F Wojcinski (1 out of 1 patent)

10. Richard S Surma (1 out of 1 patent)

11. Madhu A Mehta (1 out of 1 patent)

12. Sagunabalan Vasanthkumar (1 out of 1 patent)

13. Madhukumar A Mehta (1 out of 1 patent)

14. Bakulesh A Mehta (1 out of 1 patent)

15. Lacrence G Gierut (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 4377843 - Data distribution interface (1983-03-22),

2. 4359679 - Switching d-c. regulator and load-sharing system for multiple regulators (1982-11-16),

3. 4289934 - Integrated automatic call distribution facility and PBX system (1981-09-15),

4. 4267593 - Method and means for digital conferencing (1981-05-12),

5. 4266292 - Method and apparatus for testing analog-to-digital and digital-to-analog (1981-05-05),

6. 4259549 - Dialed number to function translator for telecommunications switching (1981-03-31),

7. 4257119 - PCM switching system for wide and narrow band signals (1981-03-17),

8. 4256926 - Microprocessor control complex for a telecommunication switching system (1981-03-17),

9. 4218589 - Method and apparatus for testing tone generators (1980-08-19),

10. 4205203 - Methods and apparatus for digitally signaling sounds and tones in a PCM (1980-05-27),

11. 4185250 - Voice frequency RC active filter (1980-01-22),

12. 4154988 - Method and means for accessing program memory of a common control (1979-05-15),

13. 4149038 - Method and apparatus for fault detection in PCM muliplexed system (1979-04-10),

14. 4146749 - Telecommunications network having multi-function spare network block (1979-03-27),

15. 4140882 - Methods and apparatus for special status indication in telephone systems (1979-02-20),

Wescom Switching, Inc. is a technology company based in Oak Brook, Illinois, specializing in advanced switching solutions for telecommunications and data networks. The organization focuses on developing innovative products that enhance connectivity and improve network performance. With a commitment to research and development, Wescom is dedicated to delivering high-quality solutions that meet the evolving needs of the telecommunications industry, ensuring reliable and efficient communication systems for its clients.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#18 in Oak Brook, IL

#1,012 in Illinois

#19,907 in US

#37,788 in the World

Oak Brook, IL, United States of America

Wescom Switching, Inc.

Forward Citations = 534

16 inventors:

Satyan G Pitroda (9 out of 57 patents)

John Frederick Regan (6 out of 23 patents)

Byung C Min (5 out of 5 patents)

4. Carl J Stehman (3 out of 5 patents)

5. William A Fechalos (2 out of 12 patents)

Please report any incorrect information to [email protected]

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