All the types of patent searches are the same in the sense that searchers are trying to find closely related documents. However, to make it effective, the ways and approach must be different from each other according to the aims of search. The basic purpose of various types of patent search is described herein-below:

• researchers can easily understand the state-of-the-art technology and so minimize researching time;
• product developers can be free from anticipated infringement suits;
• inventors can modify their ideas to be suitable for the patentability criteria;
• tentative applicants can determine whether they will apply or will save application fee;
• examiners can determine patentability of applications; and
• patentees can assess the strength of their patents.
• Patentability Searches, Bibliographic Searches, State-of-the-Art Searches, Infringement Searches, Validity Searches, Novelty Search , Continuing Searches, Assignment Searches,

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