Sang Hea Shim, Dennis P Bakalik, Donald A Johnson, Bo Yang, Frank F Lu: Carbon steel corrosion inhibitors. Nalco Chemical Company, James J Drake, Robert A Miller, December 31, 1996: US05589106 (40 worldwide citation)

The prevention of corrosion on the surfaces of metallic pipes, heat exchangers, and the like which are in contact with industrial cooling waters, and particularly industrial cooling waters containing low levels of hardness is controlled utilizing a corrosion inhibiting amount of a composition includ ...

Narasimha M Rao, Frank F Lu, Donald A Johnson, Nhuan P Nghiem: Method of preventing yellow metal corrosion in aqueous systems with superior corrosion performance in reduced environmental impact. Nalco Chemical Company, James J Drake, Robert A Miller, April 2, 1996: US05503775 (4 worldwide citation)

The invention provides a method of preventing the corrosion of yellow metal surfaces in contact with water. The method comprising the step of adding to the water an environmentally safe mixed tolyltriazole composition including at least 65% of the 5-methylbenzotriazole isomer by weight.