The patent quoted in the article has to do with software api compatibility. Other than a repeated reference to an OCR wrapper, I don't see how this has to do w

The patent quoted in the article has to do with software api compatibility. Other than a repeated reference to an OCR wrapper, I don't see how this has to do with email, printing or using a single button to send. In fact, it seems like Mr. Klien is asserting that he has discovered middleware. In 1998. Is there some other non-referenced case law that narrows the scope of this patent to the above printer scenario?