For the Inventor, By the Inventor

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Maumee, OH, United States of America

Spectra Group Limited, Inc.

USPTO Granted Patents = 20

Forward Citations = 1,352

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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),

Spectra Group Limited, Inc. is a leading provider of secure communications and information systems for use in remote and challenging environments. They specialize in delivering solutions for military, government, and commercial clients around the world. With a focus on innovation and reliability, Spectra Group offers a range of products and services designed to enhance situational awareness and connectivity in the most demanding situations.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

20 Patents

#9 in Maumee, OH

#675 in Ohio

#15,887 in US

#30,350 in the World

Maumee, OH, United States of America

Spectra Group Limited, Inc.

Forward Citations = 1,352

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)

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