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Santa Clara, CA, United States of America

Turnstone Systems, Inc.

USPTO Granted Patents = 21

% Expired Patents = 52.4

Forward Citations = 648

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14 inventors (with patents filed for the assignee):

Ramon C W Chea, Jr (15 out of 15 patents)

P Kingston Duffie (9 out of 13 patents)

Shawn Jay Cunningham (3 out of 15 patents)

4. Dana Richard DeReus (2 out of 25 patents)

5. Subham Sett (2 out of 5 patents)

6. Timothy John Hodgkinson (2 out of 2 patents)

7. Svetlana Tatic-Lucic (2 out of 3 patents)

8. P Kingston Duffle (2 out of 2 patents)

9. Harry Rodriguez (1 out of 68 patents)

10. Franz C Chen (1 out of 4 patents)

11. Kuo-Chung Lin (1 out of 1 patent)

12. Robert Crofford (1 out of 1 patent)

13. Jayant Ragde (1 out of 1 patent)

14. Wojtek Antoszkiewicz (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 6937157 - Smart cable for design of high density metallic cross connect systems (2005-08-30),

2. 6917086 - Trilayered beam MEMS device and related methods (2005-07-12),

3. 6903939 - Physical architecture for design of high density metallic cross connect systems (2005-06-07),

4. 6876482 - MEMS device having contact and standoff bumps and related methods (2005-04-05),

5. 6876047 - MEMS device having a trilayered beam and related methods (2005-04-05),

6. 6870724 - Protection of double end exposed systems (2005-03-22),

7. 6856936 - Method and system to provide an improved time domain reflectrometry technique (2005-02-15),

8. 6847114 - Micro-scale interconnect device with internal heat spreader and method for fabricating same (2005-01-25),

9. 6741675 - Method and apparatus for generating an audible tone in DSL environment (2004-05-25),

10. 6700770 - Protection of double end exposed systems (2004-03-02),

11. 6683768 - Circuit topology for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices (2004-01-27),

12. 6671149 - Systems and methods for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices (2003-12-30),

13. 6594343 - Splitter bypass architecture for testing multiple ports (2003-07-15),

14. 6574313 - Voice over DSL method and system for supporting a lifeline (2003-06-03),

15. 6574309 - Remotely actuated splittler bypass system and method (2003-06-03),

Turnstone Systems, Inc. is a technology company based in Santa Clara, California, specializing in advanced networking solutions. The organization focuses on developing innovative software and hardware that enhance network performance and security for various applications. With a commitment to research and development, Turnstone Systems aims to address the evolving needs of businesses in an increasingly connected world, providing reliable and efficient solutions that support digital transformation initiatives.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

21 Patents

#161 in Santa Clara, CA

#3,754 in California

#15,668 in US

#29,893 in the World

Santa Clara, CA, United States of America

Turnstone Systems, Inc.

Forward Citations = 648

14 inventors:

Ramon C W Chea, Jr (15 out of 15 patents)

P Kingston Duffie (9 out of 13 patents)

Shawn Jay Cunningham (3 out of 15 patents)

4. Dana Richard DeReus (2 out of 25 patents)

5. Subham Sett (2 out of 5 patents)

Please report any incorrect information to [email protected]

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