Abdul Rafi Khwaja

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East Norriton, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tannin based polymeric coagulants composition and method of use
- Patent number 7,998,351
- Issue date Aug 16, 2011
- Vinod Kumar Rai
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
TANNIN BASED POLYMERIC COAGULANTS COMPOSITION AND METHOD OF USE
- Publication number 20080149569
- Publication date Jun 26, 2008
- Vinod Kumar Rai
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE