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Maumee, OH, United States of America

Spectra Group Limited, Inc.

Calculating rank

USPTO Granted Patents = 20

% Expired Patents = 10.0

Forward Citations = 1,405

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24 inventors (with patents filed for the assignee):

Douglas C Neckers (19 out of 50 patents)

Alexandre Mejiritski (6 out of 11 patents)

Oleg V Grinevich (5 out of 5 patents)

4. Jianmin Shi (3 out of 33 patents)

5. John H Malpert (3 out of 7 patents)

6. Dustin B Martin (2 out of 6 patents)

7. Kathleen G Specht (2 out of 2 patents)

8. Afranio Torres-Filho (2 out of 2 patents)

9. Wolter F Jager (2 out of 2 patents)

10. Jian Chang Song (2 out of 2 patents)

11. Violeta Lungu (1 out of 2 patents)

12. Kesheng Feng (1 out of 2 patents)

13. Alexander Mejiritski (1 out of 1 patent)

14. Petr Serguievski (1 out of 1 patent)

15. Thomas F Marino (1 out of 8 patents)

20 patents: Sort by Forward Citations

1. 6586494 - Radiation curable inkjet composition (2003-07-01),

2. 6479217 - Method for producing selectively colorable printing plates (2002-11-12),

3. 6433035 - Selectively colorable polymerizable compositions (2002-08-13),

4. 6309797 - Selectively colorable polymerizable compositions (2001-10-30),

5. 6211262 - Corrosion resistant, radiation curable coating (2001-04-03),

6. 6200646 - Method for forming polymeric patterns, relief images and colored polymeric bodies using digital light processing technology (2001-03-13),

7. 6166233 - Onium gallates cationic initiators (2000-12-25),

8. 616623 - Onium gallates cationic initiators (2000-12-26),

9. 5998496 - Photosensitive intramolecular electron transfer compounds (1999-12-07),

10. 5955002 - Method for determining properties of a polymer coating or film cured by (1999-09-21),

11. 5942554 - Method for forming highly colored polymeric bodies (1999-08-24),

12. 5717217 - Method for determining thickness, degree of cure and other properties of (1998-02-10),

13. 5677107 - Production of three-dimensional objects (1997-10-14),

14. 5639802 - Cationic polymerization (1997-06-17),

15. 5623080 - Fluorone and pyronin Y derivatives (1997-04-22),

Company Overview

Spectra Group Limited, Inc. is a technology-driven organization based in Maumee, Ohio, specializing in advanced communication solutions. The company focuses on developing innovative products that enhance secure and reliable data transmission across various sectors. With a strong emphasis on research and development, Spectra Group is dedicated to pushing the boundaries of technology in fields such as telecommunications and defense, ensuring robust connectivity and operational efficiency for its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

20 Patents

#9 in Maumee, OH

#714 in Ohio

#16,416 in US

#31,315 in the World

Maumee, OH, United States of America

Spectra Group Limited, Inc.

Forward Citations = 1,405

24 inventors:

Douglas C Neckers (19 out of 50 patents)

Alexandre Mejiritski (6 out of 11 patents)

Oleg V Grinevich (5 out of 5 patents)

4. Jianmin Shi (3 out of 33 patents)

5. John H Malpert (3 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Spectra Group Limited, Inc.. Retrieved from https://idiyas.com/company/spectra-group

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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