The phrase "finds extensive use" is correct and usable in written English.
You could use it in a sentence like this: "This computer program finds extensive use in many classrooms."
Active carbon due to high surface area, an open pore structure, excellent thermal and chemical stability, and low price is widely used as catalyst support and adsorbent, and finds extensive uses in the chemical and pharmaceutical-manufacturing industries [1, 2, 3].
The technique of palladium catalysis found extensive use in the pharmaceutical, agricultural, and electronics industries.
Radioisotopes have found extensive use in diagnosis and therapy, and this has given rise to a rapidly growing field called nuclear medicine.
Both groups of stainless steels find extensive use in seawater applications, demanding process fluids and sour service.
Titanium has found extensive use in various engineering applications due to its attractive physical, mechanical, and chemical characteristics.
Inverse modeling is an application for adaptive filters that has found extensive use in many engineering disciplines.
In recent years plastics have found extensive use in the fabrication of important engineering components like gears, piping, etc.
Synthetic hydroxyapatite has found extensive use as a bone replacement material due to its chemical similarity to the apatites found in vertebrates.
