Inventor · disambiguated record
Longguan Zhang
Also filed as: ZHANG LONGGUAN
0 granted patents·2 pending applications·0 citations·filing 2021–2021
Files withCHINA RAILWAY ENG SERVICES CO LTD2
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2 records- 0148US2024300555A1Method and system for three dimensional positioning in subway construction site, and mediumCHINA RAILWAY ENG SERVICES CO LTD·Filed 2021·Application pending·0 cites
- 0248US2024227873A9Power decentralized electric locomotive apparatusCHINA RAILWAY ENG SERVICES CO LTD·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →