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Richardson, TX, United States of America

Chorum Technologies Inc.

USPTO Granted Patents = 42

% Expired Patents = 9.5

Forward Citations = 624

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18 inventors (with patents filed for the assignee):

Kuang-Yi Wu (38 out of 54 patents)

Jian-Yu Liu (33 out of 44 patents)

Charles Wong (8 out of 10 patents)

4. Gan Zhou (6 out of 10 patents)

5. Yen-Chen Chen (4 out of 58 patents)

6. Chi-Hao Cheng (3 out of 3 patents)

7. Ming Xu (2 out of 6 patents)

8. Chongchang Mao (2 out of 5 patents)

9. Seng-Ieong Wong (2 out of 2 patents)

10. Ye Li (1 out of 11 patents)

11. Tizhi Huang (1 out of 5 patents)

12. Shuxin Li (1 out of 2 patents)

13. Sihan Lin (1 out of 1 patent)

14. Ding Wang (1 out of 1 patent)

15. Tiejun J Xia (1 out of 116 patents)

Core Competencies:

Optical Wavelength Router

Chromatic Dispersion Compensation

Optical Add/Drop Multiplexer

Liquid Crystal Devices

Synchronous Optical Network

Dynamic Gain Equalizer

Programmable Optical Switch

Wavelength Multiplexing

Optical Interferometer

Polarization Beamsplitter

Multi-Wavelength Cross-Connect

Tunable Optical Filters

42 patents: Sort by Forward Citations

1. 6690846 - Dispersion-compensated optical wavelength router (2004-02-10),

2. 6621632 - Optical interferometer for demultiplexing an optical signal (2003-09-16),

3. 6600582 - Optical add/drop wavelength switch (2003-07-29),

4. 6559992 - Adjustable chromatic dispersion compensation (2003-05-06),

5. 6545783 - Optical wavelength add/drop multiplexer (2003-04-08),

6. 6545779 - System for dealing with faults in an optical link (2003-04-08),

7. 6519060 - Synchronous optical network in frequency domain (2003-02-11),

8. 6519022 - Optical routing switch using symmetric liquid crystal cells (2003-02-11),

9. 6515786 - Bandwidth variable wavelength router and method of operation (2003-02-04),

10. 6512615 - Method and apparatus for wavelength multiplexing/demultiplexing (2003-01-28),

11. 6510004 - Temperature insensitive polarization filter (2003-01-21),

12. 6498680 - Compact tunable optical wavelength interleaver (2002-12-24),

13. 6455841 - Optical wavelength router based on polarization interferometer (2002-09-24),

14. 6452702 - N×M digitally programmable optical routing switch (2002-09-17),

15. 6429962 - Dynamic gain equalizer for optical amplifiers (2002-08-06),

Chorum Technologies Inc. is a global technology company specializing in providing innovative software solutions. With a focus on delivering cutting-edge technology solutions, Chorum Technologies helps businesses streamline their operations and drive digital transformation. Our team of experts is dedicated to creating high-quality software products that meet the unique needs of our clients. By leveraging the latest technologies and industry best practices, we enable businesses to enhance their efficiency, competitiveness, and customer experience. Visit our website to learn more about our comprehensive range of technology services and solutions.

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Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

42 Patents

#16 in Richardson, TX

#457 in Texas

#8,240 in US

#16,304 in the World

Richardson, TX, United States of America

Chorum Technologies Inc.

Forward Citations = 624

18 inventors:

Kuang-Yi Wu (38 out of 54 patents)

Jian-Yu Liu (33 out of 44 patents)

Charles Wong (8 out of 10 patents)

4. Gan Zhou (6 out of 10 patents)

5. Yen-Chen Chen (4 out of 58 patents)

Please report any incorrect information to [email protected]

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