For the Inventor, By the Inventor

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New York, NY, United States of America

Signa Chemistry, Inc.

USPTO Granted Patents = 26

% Expired Patents = 88.5

CIPO Patents = 10

EPO Patents = 4

Forward Citations = 85

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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)

Core Competencies:

Alkali Metal Silicides

Hydrocarbon Production

Enhanced Oil Recovery

Catalytic Dehydration

Foamed Cement Compositions

High Temperature Wettability

Silica Gel Compositions

Lithium-Porous Metal Oxides

Subterranean Well Operations

Aryl Sulfonamides

Anionic Polymerization

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),

Company Overview

Signa Chemistry, Inc. is a New York-based company specializing in advanced chemical synthesis and materials science. The organization focuses on developing innovative solutions for various industries, including pharmaceuticals, biotechnology, and specialty chemicals. With a commitment to research and development, Signa Chemistry leverages cutting-edge technologies to enhance product performance and sustainability. Their expertise in chemical engineering and formulation science positions them as a key player in driving advancements within the chemical sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

26 Patents

#330 in New York, NY

#767 in New York

#12,859 in US

#24,806 in the World

New York, NY, United States of America

Signa Chemistry, Inc.

Forward Citations = 85

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Signa Chemistry, Inc.. Retrieved from https://idiyas.com/company/signa-chemistry

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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