Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sofia, BG ranks #1,118 worldwide for total patents filed all time, with 3,011 patents from 1,349 inventors. Leading employers of inventors based in Sofia, BG include Broadcom, GE, Bovie Medical.

Showing 51–100 of 1,349 inventors

Rank Inventor Primary Company Patents
#46 Tony Ganchev Broadcom 8
#52 Ljudmil Slavchev Grigorov GE 7
#52 Ivaylo Petkov Strandzhev Broadcom 7
#52 Nickolay Dimitrov Shilev Bovie Medical 7
#52 Nikola I. Marchev Sap Ag 7
#52 Zhan Ivanov Broadcom 7
#52 Borislav Marinov Gilat Satellite Networks 7
#52 Hristo Iliev Sap Se 7
#52 Victor Boyanov Gilat Satellite Networks 7
#52 Tina Nakova Broadcom 7
#52 Stefan Yotov Wacom Co. 7
#52 Radoslav I. Nikolov Sap Ag 7
#63 Ivo Simeonov Sap Ag 6
#63 Stoyan Georgiev Gaydov 6
#63 Ivan Dimov Nikolov Institute Po Metaloznanie I Technologia Nametalite 6
#63 Borislav Vasilev Hitachi Energy 6
#63 Ivan V. Genev 6
#63 Stanislav Asenov Hadjiiski Broadcom 6
#63 Vesselin Y. Georgiev Institute Po Mechanika I Biomechanika 6
#63 Viktor Kassovski 6
#63 Hristo K. Sabev Sap Ag 6
#63 Svetlana Mintova CNRS 6
#63 Hristo Dobtchev Sap Ag 6
#63 Ivaylo Iliev Sap Ag 6
#63 Ivanka Baneva Broadcom 6
#63 Radostin Georgiev Broadcom 6
#63 Vladimir S. Mednikarov Institute Po Mechanika I Biomechanika 6
#63 Ivan Ivanov Sap Ag 6
#63 Asen Alexandrov Broadcom 6
#63 Krasimir I. Topchiyski Sap Ag 6
#63 Milen Manov Sap Se 6
#63 Ilian Vladimirov Milinov Ort Joint Stock 6
#63 Ilko Dragoev Broadcom 6
#63 Jasen Minov Sap Se 6
#63 Alexander Y. Valchev 6
#86 Todor Kokev Hitachi Energy 5
#86 Emil Gelev Broadcom 5
#86 Stoil Rangelov Trifonov International Power Supply Ad 5
#86 Tzolo V. Rashev Institute Po Metaloznanie I Technologia Nametalite 5
#86 Alexander Stoilov Rangelov International Power Supply Ad 5
#86 Filip Stoilov Rangelov International Power Supply Ad 5
#86 Violeta Georgieva Sap Ag 5
#86 Georgi Kostov E.I. Du Pont De Nemours And 5
#86 Ivan Tsonev Ivanov Gilat Satellite Networks 5
#86 Constantin Staykoff 5
#86 Pham Quang Sap Ag 5
#86 Kiril Karaatanassov Broadcom 5
#86 Boriana Mladenova Wacom Co. 5
#86 Georgi Gerganov Viewray Technologies 5
#86 Tomo Vladimirov Simeonov Broadcom 5