For the Inventor, By the Inventor

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New York, NY, United States of America

Signa Chemistry, Inc.

USPTO Granted Patents = 26

CIPO Patents = 10

EPO Patents = 4

Trademarks = 1

Forward Citations = 82

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19 inventors (with patents filed for the assignee):

Michael Lefenfeld (26 out of 33 patents)

James L Dye (13 out of 18 patents)

Paul H Krumrine (7 out of 7 patents)

4. James S Falcone, Jr (5 out of 5 patents)

5. Robert Hoch (2 out of 48 patents)

6. James E Jackson (2 out of 34 patents)

7. Gregory Arthur Romney (2 out of 2 patents)

8. Muhammad Imran (2 out of 2 patents)

9. Kelvin Dean Knorr (2 out of 2 patents)

10. Robert Raja (2 out of 11 patents)

11. Alexander James Paterson (2 out of 3 patents)

12. Partha Nandi (2 out of 2 patents)

13. Matthew Edward Potter (2 out of 6 patents)

14. Ralph George Jonasson (1 out of 2 patents)

15. Stéphane Carlotti (1 out of 4 patents)

26 patents: Sort by Forward Citations

1. 10309204 - Use of alkali metal silicides in post-chops oilfield recovery operations (2019-06-04),

2. 10240443 - Alkali metal silicides for high temperature wettability improvement in carbonate reservoirs (2019-03-26),

3. 10024500 - Use of metal silicides in hydrocarbon production and transportation (2018-07-17),

4. 9791108 - Use of metal silicides in hydrocarbon production and transportation (2017-10-17),

5. 9677392 - Use of metal silicides in hydrocarbon production and transportation (2017-06-13),

6. 9657549 - Enhanced crude oil recovery using metal silicides (2017-05-23),

7. 9494012 - Foamed cement compositions containing metal silicides usable in subterranean well operations (2016-11-15),

8. 9409832 - Catalytic dehydration of alcohols using non-volatile acid catalysts (2016-08-09),

9. 9040741 - Catalytic dehydration of alcohols using non-volatile acid catalysts (2015-05-26),

10. 9012709 - Catalytic dehydration of alcohols using phase pure, calcined single- and multi-site heterogeneous catalysts (2015-04-21),

11. 8986643 - Silicide compositions containing alkali metals and methods of making the same (2015-03-24),

12. 8759599 - Catalytic dehydration of alcohols using phase pure, calcined single- and multi-site heterogeneous catalysts (2014-06-24),

13. 8632928 - Water reactive hydrogen fuel cell power system (2014-01-21),

14. 8501036 - Silica gel compositions containing alkali metals and alkali metal alloys (2013-08-06),

15. 8372371 - Silicide compositions containing alkali metals and methods of making the same (2013-02-12),

SIGNA CHEMISTRY, INC. is a leading chemical manufacturer specialized in the production of high-quality chemical compounds. With state-of-the-art facilities and a team of dedicated professionals, we deliver innovative solutions to various industries, including pharmaceuticals, agrochemicals, and advanced materials. Our commitment to research and development ensures that our products are of the highest standards, meeting the unique needs of our clients. Visit our website to learn more about our extensive product range and how we can partner with you for your chemical requirements.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

26 Patents

#287 in New York, NY

#696 in New York

#12,451 in US

#24,091 in the World

New York, NY, United States of America

Signa Chemistry, Inc.

Forward Citations = 82

19 inventors:

Michael Lefenfeld (26 out of 33 patents)

James L Dye (13 out of 18 patents)

Paul H Krumrine (7 out of 7 patents)

4. James S Falcone, Jr (5 out of 5 patents)

5. Robert Hoch (2 out of 48 patents)

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