Inventor · disambiguated record
Jifeng Duan
Also filed as: DUAN JIFENG
13 granted patents·6 pending applications·34 citations·filing 2005–2016
89Inventor score
Files withHUTCHISON MEDIPHARMA ENTPR LTD10NUTRITION SCIENCE PARTNERS LTD3DUAN JIFENG2SU WEI-GUO2YAN XIAOQIANG2
Top patents by PatentIndex Score
19 records- 0185US7341748B2Crude extracts from Andrographis paniculataHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2005·Granted Mar 11, 2008·7 cites·7 claims
- 0282US8349859B2Pyrimidine derivativesHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2008·Granted Jan 8, 2013·6 cites·12 claims
- 0381US8212033B2Use of substituted quinazoline compounds in treating angiogenesis-related diseasesSU WEI-GUO·Filed 2010·Granted Jul 3, 2012·5 cites·10 claims
- 0480US8901143B2Pyrimidine derivativesHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2012·Granted Dec 2, 2014·5 cites·11 claims
- 0580USRE42718ECrude extracts from andrographis paniculataHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2010·Granted Sep 20, 2011·4 cites·13 claims
- 0679USRE43423ECrude extracts from Andrographis paniculataYAN XIAOQIANG·Filed 2011·Granted May 29, 2012·4 cites·13 claims
- 0778US7488836B2Costunolide derivativesHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2007·Granted Feb 10, 2009·2 cites·12 claims
- 0872US7829574B2Substituted quinazoline compounds and their use in treating angiogenesis-related diseasesHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2008·Granted Nov 9, 2010·1 cites·17 claims
- 0966US7622465B2Costunolide derivativesHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2008·Granted Nov 24, 2009·0 cites·21 claims
- 1063US8557302B2Andrographis paniculata extractDUAN JIFENG·Filed 2008·Granted Oct 15, 2013·0 cites·2 claims
- 1163US2009117209A1Andrographis paniculata extractHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2007·Application pending·0 cites
- 1258US8557308B2Andrographis paniculata extractDUAN JIFENG·Filed 2012·Granted Oct 15, 2013·0 cites·9 claims
- 1357US2014315846A1Andrographis paniculata extractNUTRITION SCIENCE PARTNERS LTD·Filed 2014·Application pending·0 cites
- 1455US8497372B2Use of substituted quinazoline compounds in treating age-related macular degenerationSU WEI-GUO·Filed 2012·Granted Jul 30, 2013·0 cites·10 claims
- 1555US2014004212A1Andrographis paniculata extractNUTRITION SCIENCE PARTNERS LTD·Filed 2013·Application pending·0 cites
- 1654US2007286906A1Dihydrobenzoquinone compoundsHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2007·Application pending·0 cites
- 1750US2016193268A1Andrographis paniculata extractNUTRITION SCIENCE PARTNERS LTD·Filed 2016·Application pending·0 cites
- 1848US2005288379A1Benzoquinone compounds as anti-cancer agentsYAN XIAOQIANG·Filed 2005·Application pending·0 cites
- 1947US7902359B2Decahydronaphthalene compoundsHUTCHISON MEDIPHARMA ENTPR LTD·Filed 2007·Granted Mar 8, 2011·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →