For the Inventor, By the Inventor

Enter assignee name

Richardson, TX, United States of America

Chorum Technologies Inc.

Calculating rank

USPTO Granted Patents = 42

% Expired Patents = 9.5

Forward Citations = 624

Loading Chart...

Loading Chart...

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 Router

Wavelength Multiplexing

Tunable Filter

Liquid Crystal

Optical Switch

Demultiplexing

Optical Amplifiers

Programmable Multiplexer

Gain Equalizer

Polarization Filter

Cross-Connect Network

Spatial Light Modulators

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),

Company Overview

Chorum Technologies Inc., based in Richardson, TX, specializes in advanced optical networking solutions. The company focuses on developing innovative technologies such as optical wavelength routers, chromatic dispersion compensation systems, and optical add/drop multiplexers. Their expertise extends to liquid crystal devices, synchronous optical networks, dynamic gain equalizers, programmable optical switches, and wavelength multiplexing. Chorum's contributions are pivotal in enhancing the efficiency and performance of optical communication systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

42 Patents

#16 in Richardson, TX

#459 in Texas

#8,270 in US

#16,383 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chorum Technologies Inc.. Retrieved from https://idiyas.com/company/chorum-technologies

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

Loading…