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Snam S.p.a.

USPTO Granted Patents = 17

Trademarks = 1

Forward Citations = 273

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32 inventors (with patents filed for the assignee):

Giampaolo Bonfiglioli (5 out of 5 patents)

Raffaello Sisto (2 out of 9 patents)

Lucio De Angelis (2 out of 5 patents)

4. Arnaldo Roggero (2 out of 46 patents)

5. Costantino Vinciguerra (2 out of 30 patents)

6. Alberto Gandini (2 out of 11 patents)

7. Claudio Valentini (2 out of 6 patents)

8. Alessandro Stopponi (2 out of 3 patents)

9. Amalia Assogna (2 out of 2 patents)

10. Stefano Venzi (2 out of 2 patents)

11. Adalberto Colombo (2 out of 2 patents)

12. Gian P Ferrari Aggradi (2 out of 3 patents)

13. Thomas Paul Lockhart (1 out of 25 patents)

14. Roberto Bruschi (1 out of 5 patents)

15. Floriano Casola (1 out of 5 patents)

17 patents: Sort by Forward Citations

1. 5540522 - Seismic joint for underwater floating tunnels (1996-07-30),

2. 5453172 - Solid-state sensor for determining the concentration of a gas with a (1995-09-26),

3. 5447054 - Gas sensors formed of thin tin oxide films, for gaseous hydro-carbon (1995-09-05),

4. 5445848 - Tape for reinforcing pressure-supporting hollow bodies and a method for (1995-08-29),

5. 5400643 - Gas sensor based on semiconductor oxide, for gaseous hydrocarbon (1995-03-28),

6. 5348801 - Tape for reinforcing pressure-supporting hollow bodies and a method for (1994-09-20),

7. 5345972 - Method for repairing local damage to pipelines by applying cladding with (1994-09-13),

8. 5261944 - Nickel cermet, and process for preparing it (1993-11-16),

9. 5171794 - Modified poly(2,6-dimethyl-p-oxyphenylene), a process for its (1992-12-15),

10. 5169416 - Process for preparing modified poly-(2,6-dimethyl-p-oxyphenylene) (1992-12-08),

11. 4648626 - Telescopic joint for repairing underwater pipelines laid at a great depth (1987-03-10),

12. 4593917 - Seal system, particularly suitable for the ball joint of installations (1986-06-10),

13. 4593448 - Method for tightly jointing a sleeve to a submarine pipe laid at great (1986-06-10),

14. 4494893 - Adjustable apparatus for supporting an underwater pipe laid at great (1985-01-22),

15. 4488867 - Method for controlling the heat load of a plant fed with natural gas of (1984-12-18),

Company Overview

Snam S.p.a. is a leading Italian energy infrastructure company headquartered in Milan, specializing in the transportation and storage of natural gas. The organization plays a crucial role in the European energy landscape, focusing on the development and management of gas pipelines and storage facilities. Snam is also actively engaged in advancing sustainable energy solutions, including the integration of renewable energy sources and promoting energy efficiency initiatives, thereby contributing to the transition towards a low-carbon economy.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

17 Patents

#105 in Milan

#537 in Italy

#35,948 in the World

Snam S.p.a.

Forward Citations = 273

32 inventors:

Giampaolo Bonfiglioli (5 out of 5 patents)

Raffaello Sisto (2 out of 9 patents)

Lucio De Angelis (2 out of 5 patents)

4. Arnaldo Roggero (2 out of 46 patents)

5. Costantino Vinciguerra (2 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Snam S.p.a.. Retrieved from https://idiyas.com/company/snam

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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