PATENTS of Dr.John Philip

 

1. John Philip, C.B.Rao & B. Raj

            Patent No. 186620 

            An optical probe for qualitative evaluation/measurement of defects in a ferromagnetic material component case I 

 

2. John Philip, C.B.Rao & B. Raj

            Patent No. 186574

 An optical probe for  quantitative evaluation/measurement  of defects in a ferromagnetic material component Case II  

 

3. John Philip, T.Jayakumar & B.Raj

            Patent No. 189001

 A process for producing articles of metals, alloys and ceramics with etched surfaces and an apparatus for laser based etching of the said articles (427/BOM/98)

 

4. John Philip, T.Jayakumar , P.Kalyanasundaram & B. Raj

A tunable optical filter   (500/MUM/2002 dt.05/06/2002)

 

5. John Philip, T.Jayakumar , P.Kalyanasundaram & Baldev Raj

An improved  apparatus for measuring colloidal forces (501/MUM/2002 dt. dt.05/06/2002)

 

6. John Philip, T.Jayakumar , P.Kalyanasundaram & B. Raj

 Stabilized magnetic emulsion and a process of making it   (1134/MUM/02 dt.19Dec02)

 

 

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