Ping-Xiao Guan

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Tianhe, CN

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Patents Grantslast 30 patents

Information Patent Grant
Methods for making controlled-release ammonium phosphate fertilizer
- Patent number 7,252,697
- Issue date Aug 7, 2007
- South China Agricultural University
- Zongwen Liao
- C05 - FERTILISERS MANUFACTURE THEREOF

Patents Applicationslast 30 patents

Information Patent Application
Methods for making controlled-release ammonium phosphate fertilizer
- Publication number 20040003636
- Publication date Jan 8, 2004
- Zongwen Liao
- C05 - FERTILISERS MANUFACTURE THEREOF