Do thorough research and analysis prior to filing Research as just mentioned, before you apply to any patents - this is one of the best ways to help avoid wasted spend on patents that are duds when it comes down to a return on investment (ROI). This should account for market size, competition and potential profit to be made on the patented invention. Constantly reconsidering, and reevaluating the value and relevance of current patents can provide opportunities to abandon patents which no longer makes sense, or are under-performing. Patent management software can also be very useful to this end, offering insights and information about patent portfolios. But as always, don't fall back in to relying on just an app, and stay vigilant and strategic for the best patents possible.