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 leading technology company that specializes in providing advanced software solutions for various industries. With over 20 years of experience, Sparta has become a trusted partner for businesses worldwide. We offer a wide range of innovative products and services, including enterprise software, data analytics, and cybersecurity solutions. Our team of experts is committed to delivering exceptional quality and customer satisfaction. Visit our website to learn more about how Sparta can help drive your business success.

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USPTO Data Jan 1 1976 - Sep 15 2026

22 Patents

#14 in Lake Forest, CA

#3,579 in California

#15,001 in US

#28,690 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)

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