Hacker News Reader

It's not the sole purpose but EFF does do a lot in this area: https://www.eff.org/patent-busting

I love the EFF but they have their pokers in a lot of (important) fires. I’d ultimately like to donate to both causes.

These joke patents are relatively harmless. The real problem is the "good patents" which can actually be enforced and used to stifle competition.

Not an organization for challenging in court, but "crowdbrain" support for people who do: https://patents.stackexchange.com/