[rahimnathwani]

IANAL, and may be wrong about how US patent law works but AIUI:

- A patent isn't infringed unless an independent claim is infringed

- Claim #7 (the one with the equations) is a dependent claim (dependent on claim #1, which is independent)

The key questions seem to be:

- whether claim #1 is being infringed, and

- whether the patent is valid

[noname120]

This is exactly correct. The point about the formulas was meant as an illustrative example about the fact that the patent might well apply rather than an argumentative one.

[greglindahl]

It's a good choice of example... of why it might be invalid due to Alice.