For the Inventor, By the Inventor

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Lake Forest, CA, United States of America

Sparta, Inc.

USPTO Granted Patents = 22

% Expired Patents = 9.1

Trademarks = 1

Forward Citations = 534

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23 inventors (with patents filed for the assignee):

Philip Dennis Henshaw (8 out of 12 patents)

Steven A Lis (4 out of 7 patents)

Pierre C Trepagnier (3 out of 14 patents)

4. Irving B Osofsky (3 out of 6 patents)

5. John J Smith (2 out of 19 patents)

6. Stephen C Kenyon (2 out of 8 patents)

7. Robert F Dillon (2 out of 10 patents)

8. John W Monroe (2 out of 2 patents)

9. Michael E Anderson (2 out of 2 patents)

10. Matthew B Campbell (1 out of 2 patents)

11. Andrew J Dally (1 out of 2 patents)

12. Merrick Joseph DeWitt (1 out of 2 patents)

13. Laurie E Law (1 out of 1 patent)

14. Brian J Matt (1 out of 2 patents)

15. Jeffrey E Thoma (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 8014959 - Population of background suppression lists from limited data in agent detection systems (2011-09-06),

2. 7890763 - Method of identifying invalid digital signatures involving batch verification (2011-02-15),

3. 7869043 - Automated passive skin detection system through spectral measurement (2011-01-11),

4. 7525102 - Agent detection in the presence of background clutter (2009-04-28),

5. 7242342 - Super-resolution based on frequency domain interferometric processing of sparse multi-sensor measurements (2007-07-10),

6. 7088495 - Method and apparatus for time-division multiplexing to improve the performance of multi-channel non-linear optical systems (2006-08-08),

7. 6273914 - Spinal implant (2001-08-14),

8. 6040843 - System for transmission and recovery of digital data using video (2000-03-21),

9. 5991033 - Interferometer with air turbulence compensation (1999-11-23),

10. 5835102 - System for transmission and recovery of digital data using video (1998-11-10),

11. 5543914 - Apparatus and methods employing harmonic analysis for measuring the (1996-08-06),

12. 5537881 - Fluid sampling device (1996-07-23),

13. 5537209 - An interferometric measuring system having temperature compensation and (1996-07-16),

14. 5404222 - Interferametric measuring system with air turbulence compensation (1995-04-04),

15. 5355456 - Pebble-bed evaporation and superheater assembly for vaporizing and (1994-10-11),

Sparta, Inc. is a technology-driven company based in Lake Forest, California, specializing in advanced solutions for the defense and aerospace sectors. The organization focuses on developing innovative software and hardware systems that enhance operational efficiency and safety in complex environments. With a commitment to research and development, Sparta, Inc. leverages cutting-edge technologies to address the evolving needs of its clients, ensuring robust support for mission-critical applications across various domains.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

22 Patents

#14 in Lake Forest, CA

#3,582 in California

#15,012 in US

#28,724 in the World

Lake Forest, CA, United States of America

Sparta, Inc.

Forward Citations = 534

23 inventors:

Philip Dennis Henshaw (8 out of 12 patents)

Steven A Lis (4 out of 7 patents)

Pierre C Trepagnier (3 out of 14 patents)

4. Irving B Osofsky (3 out of 6 patents)

5. John J Smith (2 out of 19 patents)

Please report any incorrect information to [email protected]

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