There are various searches which need to be considered in order to ensure that your invention or something similar is not already out there. It is imperative to conduct a search at the earliest time possible to ensure that expenses are kept to a bare minimum. Patent application can become very costly and some of these costs can be avoided if due diligence is taken in preparing conducting a thorough search.
Identifying your position can certainly be more defined by conducting searches against published patents and the relevant trade journals. Lawdit can conduct a search on your behalf alternately you can instruct the Patent Office. As inventors usually know their market better than the lawyers they can certainly conduct a search themselves however it would be prudent to ensure that a comprehensive search is undertaken at the outset.