This document discusses patenting computer implemented inventions in the US. It provides an overview of patent eligibility requirements, including the importance of foreign associates, the two-part test used to determine eligibility, and strategies for drafting eligible claims. Key exceptions to eligible subject matter are products of nature, natural laws/phenomena, and abstract ideas. The US takes a more strict approach than Europe, requiring improvements to technology rather than commonly known technical means alone. The document advises focusing claims on technical improvements and analogizing to eligible examples to overcome eligibility rejections.