For the Inventor, By the Inventor

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San Jose, CA, United States of America

Opnext Subsystems, Inc.

USPTO Granted Patents = 16

% Expired Patents = 12.5

EPO Patents = 1

Forward Citations = 175

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15 inventors (with patents filed for the assignee):

Theodore John Schmidt (10 out of 47 patents)

Christian Malouin (8 out of 37 patents)

Sunil Kumar Singh Khatana (6 out of 8 patents)

4. Edem Ibragimov (4 out of 19 patents)

5. Brian Lee Heffner (4 out of 23 patents)

6. Andrew Wagner (2 out of 2 patents)

7. Steven William Keck (1 out of 15 patents)

8. Roberto Marcoccia (1 out of 36 patents)

9. Bo Zhang (1 out of 26 patents)

10. George Zarris (1 out of 1 patent)

11. Lee Dardis (1 out of 1 patent)

12. Hong Jiang (1 out of 1 patent)

13. Yannick Keith Lize (1 out of 1 patent)

14. Gordon Ries (1 out of 1 patent)

15. Ross Alexander Saunders (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 8768178 - Automatic gain control for high-speed coherent optical receivers (2014-07-01),

2. 8644420 - Alignment of in-phase and quadrature data in quadrature phase shift keying optical transmitters (2014-02-04),

3. 8634726 - Polarization and differential-group-delay insensitive digital timing error detection for polarization-multiplexed coherent optical systems (2014-01-21),

4. 8565621 - Quadrature time skew detection for coherent optical signals (2013-10-22),

5. 8565271 - Multiplexer lane alignment for high-speed data systems (2013-10-22),

6. 8532504 - Coherent optical receiver with adaptive equalizer initialization system (2013-09-10),

7. 8437632 - Polarization monitoring in polarization division multiplexing in optical communications (2013-05-07),

8. 8428183 - In-phase and quadrature pattern alignment for quadrature phase shift keying optical transmitters (2013-04-23),

9. 8244142 - Optical receiver having fractional sampling (2012-08-14),

10. 8126337 - Balanced phase-shaped binary transmission in optical communications (2012-02-28),

11. 8032025 - Polarization monitoring in polarization division multiplexing in optical communications (2011-10-04),

12. 8023833 - Optical receivers with controllable transfer function bandwidth and gain imbalance (2011-09-20),

13. 7991300 - Optical receiver having bandwidth control for intersymbol interference compensation (2011-08-02),

14. 7986878 - Adjustable bit rate optical transmission using programmable signal modulation (2011-07-26),

15. 7983573 - Optical receiver having FSR phase compensation (2011-07-19),

Opnext Subsystems, Inc. is a leading innovator and global supplier of advanced optical communications products and solutions. With a focus on high-performance optical modules and components, Opnext Subsystems offers cutting-edge technology to telecommunications, data communications, and consumer electronics markets. They strive to enable faster, more efficient, and reliable optical communications solutions for a connected world.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

16 Patents

#397 in San Jose, CA

#4,763 in California

#19,887 in US

#37,739 in the World

San Jose, CA, United States of America

Opnext Subsystems, Inc.

Forward Citations = 175

15 inventors:

Theodore John Schmidt (10 out of 47 patents)

Christian Malouin (8 out of 37 patents)

Sunil Kumar Singh Khatana (6 out of 8 patents)

4. Edem Ibragimov (4 out of 19 patents)

5. Brian Lee Heffner (4 out of 23 patents)

Please report any incorrect information to [email protected]

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