Inventor · disambiguated record
Zhengcao Guo
Also filed as: GUO ZHENGCAO
9 granted patents·0 citations·filing 2020–2021
72Inventor score
Files withSHANGHAI ROYE ELECTRIC CO LTD9
Top patents by PatentIndex Score
9 records- 0157US12292358B2Gas density relay with sealing performance self-checking function, and implementation method thereforSHANGHAI ROYE ELECTRIC CO LTD·Filed 2021·Granted May 6, 2025·0 cites·19 claims
- 0248US12181525B2Field detection device, system and method for achieving no maintenance of gas density relaySHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Dec 31, 2024·0 cites·19 claims
- 0347US12154738B2Method for modifying gas density relay, and gas density relay having online self-checking function and checking method thereforSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Nov 26, 2024·0 cites·13 claims
- 0446US12046433B2Electrical system with on-line sampling verification function and verification method thereofSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Jul 23, 2024·0 cites·20 claims
- 0545US12259300B2Self-diagnostic gas density relay and use method thereofSHANGHAI ROYE ELECTRIC CO LTD·Filed 2021·Granted Mar 25, 2025·0 cites·20 claims
- 0645US12099093B2Method for modifying gas density relay, and gas density relay having online self-checking function and checking method thereforSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Sep 24, 2024·0 cites·20 claims
- 0744US12136530B2Transformation method for gas density relay, and gas density relay having online self-check function and check method thereofSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Nov 5, 2024·0 cites·20 claims
- 0843US12038480B2Electrical system with on-line sampling verification function and verification method thereofSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Jul 16, 2024·0 cites·18 claims
- 0942US12255032B2Maintenance-free gas density relay and cross-checking method thereforSHANGHAI ROYE ELECTRIC CO LTD·Filed 2020·Granted Mar 18, 2025·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →