US Patent 20140006297 filed on July 2, 2013:

An integrated, end-to-end, automated system that enables a first social networking user to seamlessly transfer value to a second social networking user, even if the second user is not registered with the money transfer service from which the first user initiates the transfer...

Our service:

PikaPay.com https://www.PikaPay.com/

Send Bitcoins to anyone on Twitter, as easy as a Tweet!

PikaPay is a Bitcoin wallet integrated with the Twitter API and is one of the fastest and easiest ways to use Bitcoin. Just like in the Amex patent, with PikaPay the recipient doesn't need to have a PikaPay account to receive bitcoins.

We were the first to start sending bitcoins on Twitter back in 2011. But we're sure that scores of other companies have been doing "value transfer via social networks" even earlier.

Do we have to take that Amex patent application seriously in any way, and is there anything specific we should do?

We Tweeted AmEx about it recently: https://twitter.com/PikaPay/status/420231417117683713