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San Donato Milanese, Italy

Versalis S.p.a.

USPTO Granted Patents = 118

CIPO Patents = 81

EPO Patents = 179

Trademarks = 31

Forward Citations = 76

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331 inventors (with patents filed for the assignee):

Francesco Masi (29 out of 64 patents)

Anna Sommazzi (26 out of 50 patents)

Giovanni Ricci (21 out of 22 patents)

4. Giuseppe Leone (19 out of 19 patents)

5. Alessandro Casalini (13 out of 19 patents)

6. Guido Pampaloni (12 out of 18 patents)

7. Riccardo Felisari (11 out of 12 patents)

8. Dario Ghidoni (7 out of 21 patents)

9. Aldo Longo (7 out of 13 patents)

10. Alessandro Del Seppia (7 out of 7 patents)

11. Antonio Ponticiello (6 out of 11 patents)

12. Stefano Ramello (6 out of 12 patents)

13. Roberto Buzzoni (6 out of 23 patents)

14. Giovanni Antonio Fois (5 out of 5 patents)

15. Paolo Mariani (5 out of 5 patents)

Core Competencies:

Omega-Amino-Carboxylic Acids

Butadiene-Isoprene Copolymers

Bio-1,3-Butanediol Purification

Graphene Nanoplatelets

Oxo-Nitrogenated Iron Complex

Enzymatic Hydrolysis

Vinyl Aromatic Polymers

Olefinic Compounds

Phase Change Materials

Expandable Vinyl Aromatic Polymers

Lignocellulosic Biomass

Polymer Composition

118 patents: Sort by Forward Citations

1. 12486468 - Method for the preparation of omega-amino-carboxylic acids and derivatives thereof (2025-12-02),

2. 12247095 - Process for preparing random butadiene-isoprene copolymers having a high content of cis-1,4 units (2025-03-11),

3. 12227467 - Process for bio-1,3-butanediol purification from a fermentation broth (2025-02-18),

4. 12157906 - Process for producing a fermentation broth (2024-12-03),

5. 12030222 - Circuit and process for managing transients in a plant for continuous mass production of granulated expandable polymers (2024-07-09),

6. 11912840 - Composition containing graphene and graphene nanoplatelets and preparation process thereof (2024-02-27),

7. 11872548 - Oxo-nitrogenated iron complex, catalytic system comprising said oxo-nitrogenated iron complex and process for the (co)polymerization of conjugated dienes (2024-01-16),

8. 11851385 - Process for producing dienes (2023-12-26),

9. 11840494 - Process for treating polyalkylaromatic hydrocarbons (2023-12-12),

10. 11788104 - Process for enzymatic hydrolysis of lignocellulosic material and fermentation of sugars (2023-10-17),

11. 11773420 - Process for enzymatic hydrolysis of lignocellulosic material and fermentation of sugars (2023-10-03),

12. 11746167 - Process for the preparation of polyisoprene with a mainly alternating cis-1,4- alt-3,4 structure in the presence of a catalytic system comprising a pyridyl iron complex (2023-09-05),

13. 11725070 - Polymerization process for the synthesis of vinyl aromatic polymers with a controlled structure (2023-08-15),

14. 11661470 - Butadiene-isoprene diblock copolymers and process for the preparation thereof (2023-05-30),

15. 11518776 - Oxo-nitrogenated iron complex, catalytic system comprising said oxo-nitrogenated iron complex and process for the (co)polymerization of conjugated dienes (2022-12-06),

Versalis S.p.A. is a leading global petrochemical company specializing in the production of chemicals, polymers, and elastomers. With a strong commitment to sustainability, Versalis delivers innovative and sustainable solutions to various industries like automotive, energy, packaging, and more. The company focuses on research and development to constantly improve its products and processes, ensuring high-quality and eco-friendly solutions. Visit their website to learn more about Versalis and their extensive range of products and applications.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

118 Patents

#4 in San Donato Milanese

#74 in Italy

#6,528 in the World

San Donato Milanese, Italy

Versalis S.p.a.

Forward Citations = 76

331 inventors:

Francesco Masi (29 out of 64 patents)

Anna Sommazzi (26 out of 50 patents)

Giovanni Ricci (21 out of 22 patents)

4. Giuseppe Leone (19 out of 19 patents)

5. Alessandro Casalini (13 out of 19 patents)

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