Here is an example, I thought about patenting the solid diff bushings we just developed:
Max expected sales - 50 to 100 sets a year Max total revenue in 1 year = 100 * $150 = $15,000 Max profit in 1 year = much much less than $15,000 Cost to patent = ~$10,000 Legal costs to sue = ?????? Expected return/damages from suing a ebay seller working out of his mom's house = forget it
If we could raise the price to $400 a set, we might risk patenting it, but expected sales at $400/set = 0.