This patent claim should contain several claims, should it be three claims or should all features be included? Each feature is particularly important.

This alone cannot determine several claims. It mainly depends on your technical solution itself, what problems you want to solve, and which technical features are not required. If you do not need technical features, they must be included in the right. Yes, when comparing the distinguishing technical features with the existing technology, the distinguishing technical features should also be written into the first right. The subsequent technical features that are not necessary nor the distinguishing technical features can be written as dependent claims. As for the following items, you need to write Let’s decide based on the actual situation.

Another important point is that you have to look at how many technical problems your technical solution solves. What are the necessary technical features to solve each technical problem? Any technical solution for each technical problem can be Write independent claims.