Meaning that the patches for the problem didn't exist then because vendors were kind of wandering off.

Brown patches exist here and there, but the lawns are mowed.

Bad patches of ground still existed, and the terrain looked no different, but already he could feel some changes in the earth.

A few patches of Miombo woodland and grassland also exist in the park.

A small patch of water still exists south of US 24.

A small patch of water exists inside the loop of the ramp.

A bare patch in the trees along the north bank of the river still exists today.

In other areas, a patch exists in place of the bars.

(A patch existed for the vulnerability, but many administrators had not applied it.)

There are three states that a patch can exist in: potential, active, and degraded.