Magneto-optic films on GGG (1", 2", 3") substrates-Trade secret of Litton Industries, Corporate Head Quarters, Litton Industries Inc., Beverley Hills, California, USA, 1983.

Magneto-optic films on LLC (1", 2", 3") substrates-Trade secret of Litton Industries, Corporate Head Quarters, Litton Industries Inc., Beverley Hills, California, USA, 1983.

A process for the electroless deposition of copper on polytetra fluoro ethylene substrates – Patent filed by DRDO, New Delhi, 1992.

Temperature compensated dielectrics-Diractors – Patent filed by DRDO, New Delhi, 1992.