Inventor · name-matched record

Zhou zhi guo

1 granted patent·0 citations·filing 2020–2020

9Inventor score

Technology areasC07C

Files withSHANGHAI HAOYUAN MEDCHEMEXPRESS CO LTD1

This identity is grouped by exact name match (no disambiguated inventor record was available for these filings) — it may combine same-named inventors.

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1 record

0144US12534476B2Intermediate for synthesizing camptothecin derivative, preparation method therefor, and use thereofSHANGHAI HAOYUAN MEDCHEMEXPRESS CO LTD·Filed 2020·Granted Jan 27, 2026·0 cites·17 claims

Identity basis: exact name match across USPTO filings. How scoring works →