It's impossible to do any real software development and be sure that you aren't violating patents.
Imagine that I want to set out to deliberately violate Lodsys's patents.
He deliberately chose not to sue companies that violated his patents, satisfied instead that they were being put to good use.
Digital and Compaq accused Intel of violating various patents that they held.
Apple responded by claiming Nokia violated its patents on smartphone design and technology.
Is this Google implicitly admitting that Android violated others' patents?
And not patent squatting never gave Google the right to violate patents, which I truly believe they knowingly did.
The suits contend that the companies violated patents earned as part of Fujitsu's 30-year development of plasma-display technology.
They charged that Kodak knew early in its production process that it was under attack by Polaroid for violating patents.