Naperville, IL, United States of America

Sivalingam Sivananthan

This inventor holds 13 USPTO granted patents and 4 published patent applications. Top assignees: Epir Technologies, Inc., Epir, Inc.. Active years: 2003-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sivalingam Sivananthan. Retrieved from https://idiyas.com/inventor/sivalingam-sivananthan

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 13 (Patent Applications = 4)

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 3

Forward Citations = 52(Granted Patents)

Company Filing History:

11 out of 14

Epir Technologies, Inc.

Years Active: 2003-2024

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12007323 - Compact apparatus for high-speed chemical spectral signature measurement and method of using same (2024-06-11),

2. 11506598 - Compact apparatus for high-speed chemical spectral signature measurement and method of using same (2022-11-22),

3. 11257973 - Method for passing photovoltaic current between a subcell formed from a group II-VI semiconductor material and a subcell formed from a group IV semiconductor material (2022-02-22),

4. 10340405 - Tunnel heterojunctions in Group IV/Group II-IV multijunction solar cells (2019-07-02),

5. 9837563 - MBE growth technique for group II-VI inverted multijunction solar cells (2017-12-05),

6. 9455364 - Tunnel homojunctions in group IV / group II-VI multijunction solar cells (2016-09-27),

7. 8912428 - High efficiency multijunction II-VI photovoltaic solar cells (2014-12-16),

8. 8072801 - Method for creating nonequilibrium photodetectors with single carrier species barriers (2011-12-06),

9. 7821807 - Nonequilibrium photodetectors with single carrier species barriers (2010-10-26),

10. 7820971 - Photodetector with dark current reduction (2010-10-26),

11. 7045378 - Forming a photodiode to include a superlattice exclusion layer (2006-05-16),

12. 6906358 - Nonequilibrium photodetector with superlattice exclusion layer (2005-06-14),

13. 6657194 - Multispectral monolithic infrared focal plane array detectors (2003-12-02),

Title: Innovations of Sivalingam Sivananthan

Introduction

Sivalingam Sivananthan is a prominent inventor based in Naperville, Illinois. He holds a total of 13 patents, showcasing his significant contributions to the field of chemical spectral signature measurement. His work has advanced the capabilities of sensors used in various applications.

Latest Patents

One of his latest patents is a compact apparatus for high-speed chemical spectral signature measurement. This multiband IR adjunct (MIRA) sensor is designed to spectroscopically determine the content and concentration of chemical compositions in targeted objects. The apparatus includes a sensor housing, front optics in an optical channel, an acousto-optic tunable filter (AOTF), and a photo detector (PD). The PD converts polarized narrow-band light beams into electrical signals, which are then collected by a data acquisition unit. The design allows for multiple optical channels to analyze various wavelength ranges, including UV/VIS/near infrared (NIR), short-wavelength infrared (SWIR), mid-wavelength infrared (MWIR), and long-wavelength infrared (LWIR).

Career Highlights

Sivalingam has worked with notable companies such as Epir Technologies, Inc. and Epir, Inc. His experience in these organizations has contributed to his expertise in developing advanced sensor technologies.

Collaborations

He has collaborated with professionals like Silviu Velicu and Christoph H. Grein, further enhancing his innovative projects and research.

Conclusion

Sivalingam Sivananthan's work in the field of chemical spectral signature measurement exemplifies his dedication to innovation and technology. His patents and collaborations reflect his significant impact on the industry.

Profile summary based on public USPTO records.

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]

4 patents pending: