Introduction
Filing defensive trademark is a common strategy used by
trademark owners to prevent trademark infringement and trademark
squatting. There is no unified definition for defensive trademarks,
but there is one neat definition which could deliver their core
value-Trademarks, which has been registered for the purpose of
creating a "defensive" perimeter around the mark
actually used by the proprietor,1 that is, a shield.
A typical defensive trademark application is usually filed
identical with the mark actually used by the owner, but in relation
to goods and services unrelated to the major trade of the
owner. For example, while subclass 4506 for "legal
services" indicates a law firm's core field of business,
if our law firm filed for "MINGDUN" mark in subclass 3501
for "advertisements", that doesn't necessarily mean
that we were diving into the business of advertisements but might
just imply that we would like to place a defensive mark in subclass
3501 so
