Inventor · disambiguated record
Zhenggang Zhao
Also filed as: ZHAO ZHENGGANG
4 granted patents·2 pending applications·2 citations·filing 2015–2020
58Inventor score
Files withGUANGZHOU SINOGEN PHARMACEUTICAL CO LTD3NANJING SINOGEN BIOTECH & PHARMACEUTICAL INC2GUANGZHOU HUAZHEN PHARMACEUTICAL CO LTD1
Top patents by PatentIndex Score
6 records- 0176US9439934B1Application of an attenuated salmonella typhimurium, its genetically engineered bacterium in preparing drugs for the treatment of prostate cancerNANJING SINOGEN BIOTECH & PHARMACEUTICAL INC·Filed 2015·Granted Sep 13, 2016·2 cites·5 claims
- 0261US11318172B2Use of genetically engineered bacterium of attenuated Salmonella typhimurium in for treating liver cancerGUANGZHOU SINOGEN PHARMACEUTICAL CO LTD·Filed 2020·Granted May 3, 2022·0 cites·5 claims
- 0347US2023250451A1Application of methioninase gene therapy in treatment of malignant tumorGUANGZHOU SINOGEN PHARMACEUTICAL CO LTD·Filed 2020·Application pending·0 cites
- 0446US12478664B2Use of genetically engineered strain VNP20009-M in preventing and treating cancer metastasisGUANGZHOU SINOGEN PHARMACEUTICAL CO LTD·Filed 2017·Granted Nov 25, 2025·0 cites·6 claims
- 0538US2018339032A1Application of genetically genineered bacterium of attenuated salmonella typhimurium in preparation of medicine for treatment of liver cancerNANJING SINOGEN BIOTECH & PHARMACEUTICAL INC·Filed 2016·Application pending·0 cites
- 0636US12441732B2Potassium salt crystal form B of phosphodiesterase type 5 inhibitor, and preparation method and use thereforGUANGZHOU HUAZHEN PHARMACEUTICAL CO LTD·Filed 2020·Granted Oct 14, 2025·0 cites·19 claims
Join the waitlist — get patent alerts
Get an alert when Zhenggang Zhao files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →