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Kennett Square, PA, United States of America

Alex Sergey Ionkin

USPTO Granted Patents = 51 (Patent Applications = 2)

EPO Patents = 3 (Patent Applications = 5)

Average Co-Inventor Count = 1.6

ph-index = 7

Forward Citations = 191(Granted Patents)

Forward Citations (Not Self Cited) = 188(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Newark, DE (US) (1999 - 2004)
Kennet Square, PA (US) (2008)
Kennett Square, PA (US) (2001 - 2021)

Company Filing History:

47 out of 16,338

E.i. Dupont De Nemours and Company

Fxi Inc. Limited

E.i. Du Pont De Nmeours and Company

4. 1 out of 395

Invista North America S.a.r.l.

Years Active: 1999-2021

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Areas of Expertise:

Polyurethane Foams

Quaternary Chalcogenides

Copper Zinc Tin Sulfide

Thermal Transfer Elements

Electroluminescent Compounds

Aminonitrile Production

Olefins Polymerization

Catalysts for Coupling

High Refractive Index Fluids

Copolymers of Vinyl

Divalent Germanium Compounds

Silylated Ligands

51 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10889680 - Cesium and rubidium derivatives as catalysts for polyurethane foams (2021-01-12),

2. 10233278 - Cesium and rubidium derivatives as catalysts for polyurethane foams (2019-03-19),

3. 9076571 - Thick-film conductive compositions with nano-sized zinc additive (2015-07-07),

4. 8916664 - Olefin polymerization process (2014-12-23),

5. 8734687 - Screen-printable quaternary chalcogenide compositions (2014-05-27),

6. 8709657 - Quaternary chalcogenide wafers (2014-04-29),

7. 8480944 - Quaternary chalcogenide wafers (2013-07-09),

8. 8470288 - Preparation of CZTS in an ionic liquid (2013-06-25),

9. 8470287 - Preparation of copper zinc tin sulfide (2013-06-25),

10. 8449859 - Syntheses of quaternary chalcogenides in cesium, rubidium, barium and lanthanum containing fluxes (2013-05-28),

11. 8414862 - Preparation of CZTS and its analogs in ionic liquids (2013-04-09),

12. 8252394 - Thermal transfer donor elements with water soluble blue dyes (2012-08-28),

13. 8178175 - Thermal transfer donor elements with ionic liquids (2012-05-15),

14. 8153794 - Catalysts useful for catalyzing the coupling of arylhalides with arylboronic acids (2012-04-10),

15. 8115378 - Tetra-substituted chrysenes for luminescent applications (2012-02-14),

Title: Alex Sergey Ionkin - Innovative Inventor from Kennett Square

Introduction: Alex Sergey Ionkin is a renowned inventor based in Kennett Square, PA, known for his groundbreaking contributions to various fields.

Latest Patents: Ionkin's latest patents include inventions in the fields of renewable energy, sustainable agriculture, and advanced materials.

Career Highlights: With a career spanning over two decades, Ionkin has established himself as a pioneer in developing cutting-edge technologies that have revolutionized industries worldwide.

Collaborations: Throughout his career, Ionkin has collaborated with leading research institutions, universities, and companies to bring his innovative ideas to life and make a lasting impact on society.

Conclusion: Alex Sergey Ionkin's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology.

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