Avoiding patent strategy
Patents often do have weaknesses. This stays especially for patens from USA and some of the EU countries. This analysis of the weaknesses can be useful tool to avoid patenting or for technical development and improvement.
However, there are other methods. Let assume, for example, that you need to install some electronic device and that you are not sure whether this device is already protected by someone else. What is to be done in such a circumstance? The analysis of the state of the patent within current technologies can not be final having in mind that the many processes of patenting are still on going. Only is the uncertainty left. Skilful attitude in the process of designing the product can make the product economically less attractive to the eventual attack