Posts Tagged ‘Classen’

Prometheus v. Mayo and Classen v. Biogen Sent Back to Federal Circuit

Tuesday, June 29th, 2010

Not unexpectedly, today the Supreme Court granted cert. in Prometheus v. Mayo, (09-490) vacated, and remanded to the Fed. Cir. for reconsideration in view of Bilski v. Kappos, decided yesterday. While this clears the Court’s collective desk, I don’t see anything in Bilski that would either cause the Fed. Cir. to reverse its original decision or cause the Supreme Court to reverse an affirmance.  As you will recall, the claims in Prometheus were directed to a method of administering an immunosuppressive drug and monitoring the level of its metabolites to determine the appropriate dosage. While the Fed. Cir. found that certain of the steps were “mental steps,” the panel both found the administration steps and the sampling steps to be transformative, and strongly reaffirmed that methods of medical treatment were patentable methods or processes under s. 101. Given that the M or T test is still viable and given that even the Justices who sided with Justice Stevens should find that these claims are not directed to a business method and involve more than simply organizing human activity, it is hard to envision what circumstances would cause any of the Justices to reverse a decision below that the claims are patentable subject matter.

The Supreme Court also granted cert., vacated and remanded Classen Immunotherapeutics Inc. v. Biogen IDEC (08-1509) for reconsideration in view of Bilski. The Fed. Cir. summary affirmance of the district court’s holding that the claims of US Pat No 5,723,283 are invalid as failing the M or T test was the subject of one of my first posts on this blog in March 2009. The claims were directed to determining whether or not an immunization schedule is effective in treating a chronic immune-related disorder. Claim 1 contains the steps of immunizing mammals with dose(s) of immunogens according to the schedule and comparing the results with that of a control group. The district court found that the claims were invalid; an attempt to patent a natural phenomenon. The Fed. Cir. affirmed on the basis that the claims fail the M or T test. I argued at the time that immunization transforms the immune system. The immunization schedule can, in some cases, ameliorate the symptoms of the disorder. Regardless of whether or not the Fed. Cir. reapplies the M or T test, this claim is not directed to an abstract idea or a law of nature. The Fed. Cir. got it wrong the first time, even if it were proper to use the M or T test as the sole test to evaluate whether this method is patentable subject matter (which we now know it is not). The Bilski decision gives the court a rare opportunity to change its mind.

As I have noted in earlier posts, more problematic are certain of the diagnostic or “screening” method claims the Fed. Cir. will be required to consider after the Ass’n of Molecular Pathology (read “ACLU”) vs. USPTO and Myriad district court decision crosses their threshold.  The ultimate decision in this case will not turn on whether or not a diagnostic method is a business method, since none of the parties ever urged that it is. (Query: Is a surgical method a business method? What about a chiropractic technique?)

“Abstract idea” was also not defined by the Court’s opinion, and since this exception to patentable subject matter sealed Bilski’s fate, should we now be asking: “Can diagnostic methods be so technologically disembodied that they are ‘abstract ideas’”?  Judge Sweet found that the “analyzing” and “comparing” steps in Myriad’s screening claims were abstract mental processes that failed the M or T test.  Of course, post-Bilski, the Fed. Cir. has more to work with than just the M or T test – too bad we don’t know how much more!

Appeal Summary Disposition

PTO Issues Interim Examination Instructions for Patentable Subject Matter and Invites Comments

Monday, August 31st, 2009

On August 24, the PTO issued interim instructions (not rules) to guide Examiners post-Bilski. I did not see this as a major event, given that the Supreme Court will soon be reviewing the Bilski “machine or transformation” (M or T) test to see if it will continue to control the fate of process/method claims. However, the PTO recently invited comments and I cannot entirely resist.

In the first place, given that Bilski has already been applied to affirm rejection of a claim to a medical screening method (in Classen), it is a bit surprising that the “instructions” do not mention the application of Bilski to diagnostic, screening or surgical methods or to methods of medical treatment. The application of the instructions to the chemical arts is only mentioned directly twice, and once indirectly:

“For purposes of efficiency, it is recommended that the claim be first evaluated for the presence of the prong (M or T) most likely to be satisfied in the particular technological field because once one prong is satisfied, it is not necessary to evaluate the claim under the other prong. For example, in the mechanical and electrical arts, it may be more likely that a process is machine implemented, while in the chemical arts it may be more likely that a process results in a transformation of a substance.”

I agree, and as noted below in my post that discusses Classen, I remain at a loss to explain why the claim at issue was found by the Fed. Cir. to fail to recite the transformation of a substance. Remember, the claim was directed to a method of determining the efficacy of an immunization schedule to reduce the severity of an immune-mediated disorder that recited the step of immunizing a “treatment group” of animals. The PTO even defines “transformation” in the instructions in a way that would seem to include vaccination, which does transform one type of cell of the immune system into another kind:

“‘Transformation’ of an article [defined as "a physical object or substance"] means that the “article” has changed to a different state or thing…. A new or different function or use can be evidence that the article has been transformed.”

If the article is a T cell or a B cell, it would seem that Examiners are being instructed to ignore Classen and to continue to examine claims directed to (or reciting) immunization schedules. Good thing, with another the swine flu season looming.

The other oblique reference to chem/biotech claims is 8 lines from the end, where Examiners are instructed to:

“[c]onfirm that the [M or T] test was conducted correctly by considering whether the method is so abstract and sweeping as to have no real world application or pre-empts substantially all practical uses of a … law of nature or a natural phenomenon. In either case, the claim would be ineligible and should not have passed the M-or-T test.”

Although the fact we all have immune systems may be a natural phenomenon, the screening test claimed in Classen does not pre-empt all “uses” of the immune system or even of immunization; it is not even a method-of-treatment claim (which, after all, is another substantial use of immunization.

The only blatant misstatement of precedent in the instructions appears early on, where “A naturally occurring organism” is given as an example of non-statutory subject matter. This should be reworded as “An organism as it occurs in nature.” Pure cultures of microorganisms have been patentable at least since In re Bergy, 596 F.2d 952 (CCPA 1979). The court gave weight to Bergy’s expert who declared:

“The ‘biological pure culture’ of claim 5 is a well-defined product of the microbiologist which is capable of producing the desired antibiotic lincomycin under controlled fermentation conditions. In contrast, the soil source in which the microorganism was discovered is a complex microbial environment which, as such, could not be used to produce a desired product under any known fermentation conditions.”

The court recognized the importance of “bringing them back alive” from the jungle of nature. Thirty years later, we should not be having a debate to decide whether this is enough “transformation” to be worthy of a patent.

101-memo-to-directors.pdf
101-examiner-instructions-8-24-09.pdf
flowchartmort-8-24-09.pdf
flowchartprod-8-24-09.pdf