"
Liquid Soap
William Shepphard first patented liquid soap on August 22, 1865. The first modern liquid soap was introduced in 1980 by Minnetonka Corporation. Minnetonka cornered the liquid soap market by buying up the entire supply of the plastic pumps needed for the liquid soap dispensers. The Colgate Company acquired the liquid soap business from Minnetonka and renamed the product Softsoap in 1987."