Patent prosecution arises in each and every country as there is a keen competition among business rivals to protect their own reputation and invention. It simply refers to the interaction between an applicant and patent agent or patent office for the regarding proposed patent. Patent prosecution can be done at both time like it can be at pre-grant and post-grant of patent. At pre-grant patent prosecution level, the negotiation is gone on between an applicant and the patent representative over the invention an applicant mad. Patent prosecution case arises due to if there is already an invention created with the same name before and that contradicts with the present one. Therefore, patent prosecution services should be care d by patent attorneys or legal professionals those have experience in handling this matter in before for clients otherwise it will create many unavoidable issues in future while running the business.