Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Roma, IT ranks #234 worldwide for total patents filed in 2021, with 596 patents from 337 inventors. Leading employers of inventors based in Roma, IT include IBM, Luxury Goods International (L.G.I.) Sa, Ericsson.

Showing 1–50 of 337 inventors

Rank Inventor Primary Company Patents
1 Giuseppe Longobardi IBM 15
2 Gianluca Della Corte IBM 13
2 Antonio M. Sgro IBM 13
#4 Giuseppe Ciano IBM 11
#5 Luigi Pichetti IBM 10
#6 Andrea Tortosa IBM 8
#7 Alessandro Michele Luxury Goods International (L.G.I.) Sa 7
#7 Stefano Sidoti IBM 7
#7 Roberto Ragusa IBM 7
#7 Alessandro Donatelli IBM 7
#7 Paolo Ottaviano IBM 7
#7 Alice Guidotti IBM 7
#13 Marco Imperia IBM 6
#14 Antonio Di Cocco IBM 5
#14 Ilaria Gorga IBM 5
#14 Leonida Gianfagna IBM 5
#14 Giulia Carnevale IBM 5
#14 Fabio Cerri IBM 5
#14 Stefano Ruffini Ericsson 5
#20 Patrizia Manganelli IBM 4
#20 Daniele Morgantini IBM 4
#20 Marco Toscano Bridgestone Europe Nv/Sa 4
#20 Gianluca Gargaro IBM 4
#20 Claudio Falcone IBM 4
#20 Maurizio Carbonara Honda Motor Co. 4
#20 Mario Sgreccia Bridgestone 4
#20 Cristina Bonanni IBM 4
#20 Sandro Piccinini IBM 4
#20 Nicola Milanese IBM 4
#20 Leonardo Rosati IBM 4
#20 Fabio Mungo Accenture Global Services Limited 4
#20 Francesco Maria Carteri IBM 4
#33 Lucia Silvestri Bulgari S.P.A. 3
#33 Antonio Perrone IBM 3
#33 Marco Borgianni IBM 3
#33 Stefano Proietti IBM 3
#33 Alessandra Del Rio Ares Trading S.A. 3
#33 Stefano Scialla The Procter & Gamble 3
#33 Viviana Tripodi IBM 3
#33 Claudio Marinelli IBM 3
#33 Marco Martino IBM 3
#33 Silvano Lutri IBM 3
#33 Elisabetta Bianchi Merck 3
#33 Alessio Fioravanti IBM 3
#33 Alessandro Scotti IBM 3
#33 Vincenzo Guida The Procter & Gamble 3
#33 Raffaele Di Ronza Bridgestone 3
#33 Fabio Galasso Osram Gmbh 3
#33 Gianluca Perreca IBM 3
#33 Claudia Aurisicchio Bridgestone 3