For the Inventor, By the Inventor

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Sms Demag S.p.a.

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 11

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4 inventors (with patents filed for the assignee):

Piergiorgio Fontana (2 out of 4 patents)

Giovanni De Marchi (2 out of 4 patents)

Alessandro Molinari (1 out of 1 patent)

4. Francesco Perugi (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 7455810 - Metallurgical reactor for the production of cast iron (2008-11-25),

2. 6426969 - Discharge screw for moving hearth (2002-07-30),

3. 6305931 - Rotary hearth furnace with lightened construction (2001-10-23),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#139 in

#2,503 in Italy

Sms Demag S.p.a.

Forward Citations = 11

4 inventors:

Piergiorgio Fontana (2 out of 4 patents)

Giovanni De Marchi (2 out of 4 patents)

Alessandro Molinari (1 out of 1 patent)

4. Francesco Perugi (1 out of 1 patent)

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