Forward Citations = 18

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4 inventors (with patents filed for the assignee):

Giuseppe Raspanti (3 out of 26 patents)

Angelo Bresciani (1 out of 3 patents)

Massimo Barzaghi (1 out of 1 patent)

4. Massimo Quintini (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 5278310 - Methyl piperidine derivatives of cinnamic acids, benzoic acids, (1994-01-11),

2. 5256737 - Thickening agents, processes for the preparation thereof and use thereof (1993-10-26),

3. 5250292 - Use of cyclic organic amines in dermatological compositions (1993-10-05),

4. 5250223 - Solution of a fluorescent whitening agent (1993-10-05),

5. 5233040 - 1,3,5-triazine derivatives (1993-08-03),

6. 5162474 - Synthetic thickeners, obtained by water-in-oil emulsion polymerization, (1992-11-10),

Company Overview

Sigma Prodotti Chimici S.p.a. is a leading chemical company specialized in the production and distribution of a wide range of chemical products for various industries. With over 50 years of experience, Sigma Prodotti Chimici S.p.a. is known for its high-quality products, innovative solutions, and excellent customer service. The company is committed to sustainability and environmental protection, ensuring that their products meet the highest standards of safety and compliance.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#252 in Milan

#1,398 in Italy

Milan, Italy

Sigma Prodotti Chimici S.p.a.

Forward Citations = 18

4 inventors:

Giuseppe Raspanti (3 out of 26 patents)

Angelo Bresciani (1 out of 3 patents)

Massimo Barzaghi (1 out of 1 patent)

4. Massimo Quintini (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sigma Prodotti Chimici S.p.a.. Retrieved from https://idiyas.com/company/sigma-prodotti-chimici

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]