EPO Patents = 2

Forward Citations = 2

Loading Chart...

7 inventors (with patents filed for the assignee):

Hitoshi Dohnomae (3 out of 8 patents)

Yutaka Kishida (2 out of 4 patents)

Masataka Hiyoshi (1 out of 9 patents)

4. Shigeru Nakazawa (1 out of 1 patent)

5. Kozo Onoue (1 out of 1 patent)

6. Shinji Tokumaru (1 out of 8 patents)

7. Jiro Kondo (1 out of 9 patents)

3 patents: Sort by Forward Citations

1. 10370253 - Silicon refining device (2019-08-06),

2. 10167199 - Method for manufacturing highly pure silicon, highly pure silicon obtained by this method, and silicon raw material for manufacturing highly pure silicon (2019-01-01),

3. 9937436 - Silicon refining equipment and method for refining silicon (2018-04-10),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#100 in Madrid

#661 in Spain

Madrid, Spain

Silicio Ferrosolar S.l.

Forward Citations = 2

7 inventors:

Hitoshi Dohnomae (3 out of 8 patents)

Yutaka Kishida (2 out of 4 patents)

Masataka Hiyoshi (1 out of 9 patents)

4. Shigeru Nakazawa (1 out of 1 patent)

5. Kozo Onoue (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Silicio Ferrosolar S.l.. Retrieved from https://idiyas.com/company/silicio-ferrosolar-s-l

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]

2 patents (EPO):

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]