*We will implement the IPA later this year, and it will apply to all patents iss...

		rfrey on April 17, 2012 \| parent \| context \| favorite \| on: Twitter Introduces Innovators Patent Agreement We will implement the IPA later this year, and it will apply to all patents issued to our engineers, which is different than the acquired patent you mention, but at least indicates the intention to make the policy retroactive.