Let's conclude our series of articles on In Re Bilski by looking at what the ruling may mean for Microsoft's threats against Linux. We can start by figuring out what kinds of patents Microsoft might think it owns.

Continuing our series on the In Re Bilski ruling [PDF], here is Judge Mayer's dissenting opinion as text, the one that points out how utterly damaging all business methods patents are. Also, a reader sent me this link to what I agree is the best overview of the ruling that we've seen yet, by the law firm of Ladas & Parry.

This interview is part of a series following the Supreme Court's Bilski decision, which left the laws on what you can get a patent on largely as they are, after a four-justice minority failed to ban "business method" patents.

Novell's attitude and warnings following the Bilski ruling suggest that it longs for software patents

I'm getting a lot of email about Microsoft suing TomTom for alleged patent infringement, first reported by Todd Bishop on TechFlash. I've put lots of links in NewsPicks for you, and here are the two complaints, the regular complaint filed in federal court and the ITC complaint [PDFs]. I'll restrict myself for now to two quick words: Think Bilski

More intriguing Bilski briefs filed. The door is shut now, so there will be no more, I gather. Both the ABA and Patently O have them all listed, and the latter includes a helpful brief blurb giving an outline of the theme of each. So read them all if you wish.

The U.S. is known for its patent friendliness. But a Supreme Court decision in 2008 overturned a patent application by Bernard L. Bilski and Rand A. Warsaw for a risk mitigation process. Now Red Hat is using the so-called Bilski case in support of software non-patentability.

FSF has now filed an amicus brief in Bilski, and they too ask the Supreme Court "to affirm that software ideas are not patentable":End Software Patents (ESP) executive director Ciaran O'Riordan explained, "Every software patent is a restriction on software developers and users of computers, and there are currently 200,000 software patents in the USA.

A couple of important court decisions may constitute a change of law, but it’s too early to tell for sure. Bilski is due very soon and the SSP Web site suggests that immense lobbying is likely to ensue