A "patent defect" is a defect that is easily noticeable or visible during a reasonable inspection of a property. It is a defect that is apparent and could have been identified by an ordinary person using reasonable care. For example, a crack in a wall, a leaky roof, or a broken window are all examples of patent defects.
On the other hand, a "material latent defect" is a hidden or concealed defect that is not readily apparent during a reasonable inspection. It is a defect that cannot be easily detected by an ordinary person using reasonable care. A material latent defect is a defect that would not be discovered by a purchaser upon a reasonable inspection of the property. For example, a hidden termite infestation, structural damage, or hidden water damage are examples of material latent defects.
In summary, a patent defect is an obvious defect that can be easily noticed during a reasonable inspection, while a material latent defect is a hidden or concealed defect that would not be detected during a reasonable inspection.