Investors want a return on their capital.  So when you approach investors, they want to see that you have taken the steps to protect their capital by way of a patent application.  But the reality is that most patents take two to four years to issue, and so you will seek investors shortly after filing for a patent application.  In other words, the patent hasn’t issued yet.  Accordingly, a comprehensive patent search opinion is key to convincing would-be investors that your invention will eventually issue into meaningful protection and provide a return on investment. 

In fact, part of any business plan that you present to inventors should include your sustainable competitive advantages.  In almost every case, patent rights for your invention is the number one factor for evaluating competitive advantage.  For this reason, the results of a comprehensive patentability search penned by a Registered Patent Attorney is integral to convincing Investors whether to fund your venture.