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For the Inventor, By the Inventor

Sunnyvale, CA, United States of America

Virtual Silicon Technology, Inc.

Calculating rank
USPTO Granted Patents = 10

% Expired Patents = 50.0

Forward Citations = 52

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12 inventors (with patents filed for the assignee):

goldMedal Michael J McManus (4 out of 8 patents)

silverMedal William Gordon Walker (4 out of 19 patents)

bronzeMedal Billie Jean Rivera (4 out of 5 patents)

4.  Michael Anthony Zampaglione (3 out of 25 patents)

5.  Richard Talburt (3 out of 3 patents)

6.  John M Callahan (2 out of 27 patents)

7.  Glen Arnold Rosendale (1 out of 39 patents)

8.  Jackie Chu (1 out of 2 patents)

9.  Michael Tooher (1 out of 10 patents)

10.  Gregorio Spadea (1 out of 10 patents)

11.  Olivier A Saint-Luc (1 out of 1 patent)

12.  Albert M Bergemont (1 out of 156 patents)


10 patents:

1. 7051308 - Method and apparatus for integrated circuit design with library cells (2006-05-23),
2. 6977860 - SRAM power reduction (2005-12-20),
3. 6900687 - Circuitry and method to provide a high speed comparator for an input stage of a low-voltage differential signal receiver circuit (2005-05-31),
4. 6844770 - Circuitry to provide a low power input buffer (2005-01-18),
5. 6839882 - Method and apparatus for design of integrated circuits (2005-01-04),
6. 6809965 - Control circuitry for a non-volatile memory (2004-10-26),
7. 6766496 - Method and apparatus for integrated circuit design with a software tool (2004-07-20),
8. 6687880 - Integrated circuit having a reduced spacing between a bus and adjacent circuitry (2004-02-03),
9. 6657880 - SRAM bit line architecture (2003-12-02),
10. 6606265 - Common source EEPROM and flash memory (2003-08-12),
Company Overview
Virtual Silicon Technology, Inc. is a prominent provider of semiconductor intellectual property (IP) solutions, specializing in the development of advanced process technologies for integrated circuits. The company focuses on delivering high-quality, customizable IP cores that enable efficient design and manufacturing processes for various applications in the electronics industry. Headquartered in Sunnyvale, California, Virtual Silicon plays a crucial role in supporting innovation across multiple sectors, including consumer electronics, telecommunications, and automotive technologies.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

10 Patents

#311 in Sunnyvale, CA

#7,121 in California

#29,892 in US

#56,119 in the World

Sunnyvale, CA (US)
Sunnyvale, CA, United States of America

Virtual Silicon Technology, Inc.

Forward Citations = 52

12 inventors:

goldMedal Michael J McManus (4 out of 8 patents)

silverMedal William Gordon Walker (4 out of 19 patents)

bronzeMedal Billie Jean Rivera (4 out of 5 patents)

4.  Michael Anthony Zampaglione (3 out of 25 patents)

5.  Richard Talburt (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Virtual Silicon Technology, Inc.. Retrieved from https://idiyas.com/company/virtual-silicon-technology

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]
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