Council of Scientific and Industrial Research (1988) A direct reading four probe resistivity meter. 163185.

Council of Scientific and Industrial Research (1987) An electronic control device for automatically controlling cathodic or anodic potentials for the protection of electrical equipment/installations. 160088.

Krishnamurthy, S. and Udupa, K.S. and Mahadevaiyer, Y. and Venkobarao, H.N. (1986) Amperometry for monitoring of azopigment production. Bulletin of Electrochemistry , 2 (5). pp. 521-523. ISSN 0256-1654

Krishnamurthy, S. and Udupa, K.S. and Mahadevaiyer, Y. and Venkobarao, H.N. (1986) Electrode monitoring of diazotisation of aromatic amines. Bulletin of Electrochemistry , 2 (5). pp. 519-520. ISSN 0256-1654

Pandiammal, M. and Ramakrishnan, K.R. and Venkobarao, H.N. (1985) Digital current integrator. Bulletin of Electrochemistry , 01 (03). pp. 325-327. ISSN 0256-1654

Venkobarao, H.N. and Mahadevaiyer, Y. and Rengaswamy, N.S. and Sureshbapu, R.H. (1985) Novel resistance probe corrosion monitor for concrete reinforcement. Bulletin of Electrochemistry , 01 (01). pp. 77-79. ISSN 0256-1654

Council of Scientific and Industrial Research (1973) Improvements in or relating to preparation of a plastic filter to transmit near infrared radiation. 129035.

Council of Scientific and Industrial Research (1970) Improvements in or relating to lead sulfide photoconductive cells for infrared detection. 116538.

Counsil of Scientific and Industrial Research (1968) Improvements in or relating to chemical deposition of thin films of lead selenide layers. 110877.