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Billerica, MA, United States of America

Sipex Corporation

USPTO Granted Patents = 23

% Expired Patents = 13.0

Forward Citations = 354

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18 inventors (with patents filed for the assignee):

Jeffrey B Van Auken (6 out of 9 patents)

Paul S Chan (6 out of 12 patents)

Raymond W Chow (6 out of 6 patents)

4. Henry K Wong (4 out of 13 patents)

5. Christopher John Sanzo (4 out of 15 patents)

6. Claudio Tuozzolo (2 out of 5 patents)

7. Alex Gusinov (2 out of 8 patents)

8. Joseph L Sousa (2 out of 10 patents)

9. Dimitry Goder (1 out of 21 patents)

10. Richard W Randlett (1 out of 5 patents)

11. Kendall Willis (1 out of 1 patent)

12. Frank B Jaworski (1 out of 2 patents)

13. Jeffery B Van Auken (1 out of 1 patent)

14. Michael J DeLurio (1 out of 1 patent)

15. Joost Decupere (1 out of 1 patent)

23 patents: Sort by Forward Citations

1. 7382191 - Multiplier-transimpedance amplifier combination with input common mode feedback (2008-06-03),

2. 6922041 - Apparatus for and method of adjusting a switching regulator output for a circuit having a pre-charge voltage (2005-07-26),

3. 6611166 - Charge pump load determination circuit (2003-08-26),

4. 6593796 - Method and apparatus for powering multiple AC loads using overlapping H-bridge circuits (2003-07-15),

5. 6577110 - DC-to-DC converter with constant ripple current regulation for continuous and discontinuous conduction mode operation (2003-06-10),

6. 6570748 - Method and apparatus for indicating an over-current condition (2003-05-27),

7. 6566905 - Method and apparatus for a multi-state single program pin (2003-05-20),

8. 6512353 - Synchronized, ripple independent window comparator for switch-mode power converters (2003-01-28),

9. 6504349 - Pulse width modulated voltage regulation circuit and related methods (2003-01-07),

10. 6486645 - Voltage regulation circuit and related methods having a dynamically determined minimum discharge time (2002-11-26),

11. 6378026 - Connection detection circuit and method (2002-04-23),

12. 6376934 - Voltage waveform generator (2002-04-23),

13. 6172555 - Bandgap voltage reference circuit (2001-01-09),

14. 6147517 - Voltage comparator circuit (2000-11-14),

15. 5973486 - Differential power sensor circuit (1999-10-26),

Sipex Corporation, based in Billerica, MA, specializes in the design and manufacture of high-performance analog and mixed-signal integrated circuits. The company focuses on providing innovative solutions for a variety of applications, including telecommunications, consumer electronics, and industrial systems. Sipex is recognized for its expertise in power management, data conversion, and signal processing technologies, contributing to advancements in electronic systems across diverse industries.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

23 Patents

#33 in Billerica, MA

#866 in Massachusetts

#14,415 in US

#27,649 in the World

Billerica, MA, United States of America

Sipex Corporation

Forward Citations = 354

18 inventors:

Jeffrey B Van Auken (6 out of 9 patents)

Paul S Chan (6 out of 12 patents)

Raymond W Chow (6 out of 6 patents)

4. Henry K Wong (4 out of 13 patents)

5. Christopher John Sanzo (4 out of 15 patents)

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