Secondary Considerations are Primary in the Post-KSR Obviousness Analysis

Two recent Federal Circuit cases emphasize the importance of the so-called “secondary considerations of non-obviousness” in deciding the question of patent validity.  In Transocean v. Maersk Contractors, the Federal Circuit reversed the district court’s grant of summary judgment of obviousness because the district court did not give any weight to “significant objective evidence of nonobviousness” presented by the patentee, Transocean.  The Federal Circuit held that:

The district court erred by failing to consider Transocean’s objective evidence of nonobviousness…While it is true that we have held in individual cases that objective evidence of nonobviousness did not overcome the strong prima facie case – this is a case-by case determination. [citations omitted] To be clear, a district court must always consider any objective evidence of nonobviousness presented in a case.

Opinion at 11.



Two days after deciding Transocean, the Federal Circuit decided Geo M. Martin Co. v. Alliance Machine Sys. Int’l LLC, 2009-1132, -1151 (Fed. Cir., August 20, 2010). In Geo M. Martin, the Court affirmed the district court’s JMOL holding (following a hung jury) that the asserted claims were obvious as a matter of law. In this case, the district court properly considered the “secondary considerations” of non-obviousness, but concluded that they did not overcome the strong prima facie showing of obviousness. For several points argued by the patentee, such as commercial success, failure of others, and industry praise, the Federal Circuit found insufficient evidence of a nexus between the alleged “secondary consideration” and the claimed invention. In addition, the patent owner argued that alleged copying by others also supported a finding of non-obviousness. The timing of the alleged copying, however, had the opposite impact on the Court. Rather than supporting non-obviousness, both the district court and Federal Circuit found the evidence supported acts of “simultaneous invention” and that “simultaneous inventions, made ‘within a comparatively short space of time,” are persuasive evidence that the claimed apparatus ‘was the product only of ordinary mechanical or engineering skill.’” [citations omitted] Opinion at 20. When all was said and done, “[b]alancing all of the secondary considerations, this court agrees…the [patentees] evidence of non-obviousness, even if fully considered by a jury, would fail to make a difference in this case.”  Opinion at 21.

These cases do not break significant new ground on the law of obviousness, but do provide continuing guidance as to the growing importance of secondary considerations of non-obviousness in determining patent validity.

** One final note:  Congratulations to my Dorsey & Whitney partners Tom Vitt and Sri Sankaran, who successfully represented Alliance Machine Systems in the Geo M. Martin case.

The Federal Circuit Reviews the Standard for Preliminary Injunctions in Design Patent Cases

Titan Tire Corporation et al. v. Case New Holland Inc., et al. 2008-1078

In Titan Tire, the Federal Circuit affirmed the trial court’s denial of a preliminary injunction (“PI”) in a design patent case. (www.cafc.uscourts.gov/opinions/08-1078.pdf) The opinion begins with a recitation of the four factors required to obtain a preliminary injunction which “are of longstanding and universal applicability.” That is, the movant “must establish [1] that he is likely to succeed on the merits, [2] that he is likely to suffer irreparable harm in the absence of preliminary relief, [3] that the balance of equities tips in his favor, and [4] that an injunction is in the public interest.” Although a movant must satisfy all four factors in every case, the focus of Titan Tire was on the first factor. More particularly, the opinion provides an in-depth discussion regarding the respective evidentiary and procedural burdens for establishing (or defeating) a showing that a patent holder “is likely to succeed on the merits” in the face of a validity challenge to the asserted patent. Although Titan Tire is a design patent case, the discussion with respect to the burdens encountered in a PI motion are equally applicable to utility cases as well.

The court begins its analysis with the truism that “the patentee seeking a preliminary injunction in a patent infringement suit must show that it will likely prove infringement, and that it will likely withstand challenges, if any, to the validity of the patent.” When an alleged infringer is challenging patent validity in its defense of a PI, “the burden is on the challenger to come forward with evidence of invalidity, just as it would be at trial.” (Well, almost “as it would be at trial.” As discussed below, the accused infringer does not need to present “clear and convincing” evidence of invalidity to defeat a motion for a preliminary injunction.) After the accused infringer presents some evidence sufficient “to persuade the trial court that the patent is invalid, at this stage it is the patentee, the movant, who must persuade the court that, despite the challenge presented to validity, the patentee nevertheless is likely to succeed at trial on the validity issue.” In this context, “[w]hile it is not the patentee’s burden to prove validity, the patentee must show that the alleged infringer’s defense lacks substantial merit.”

How much evidence does an accused infringer need to present for a successful invalidity challenge during a preliminary injunction hearing? Clearly, the accused infringer needs to come forward with enough evidence (something more than a “mere scintilla”) to persuade the court that its invalidity defense has “substantial merit.” The court unequivocally stated, however, that “the alleged infringer at the preliminary injunction stage does not need to prove invalidity by the ‘clear and convincing’ standard that will be imposed at trial on the merits.” Instead, this heightened evidentiary burden is merely “a consideration for the judge to take into account in assessing the challenger’s case at the preliminary injunction stage.”

Obviousness of Design Patents

After discussing the standard for determining whether an invalidity defense is sufficient to defeat a PI motion, the court continued with a discussion of the standard for determining invalidity of a design patent.

Obviousness for design patents, like utility patents, is governed by 35 U.S.C. 103. When combining multiple references for an obviousness defense, the inquiry is “whether one of ordinary skill would have combined the teachings of the prior art to create the same overall visual appearance as the claimed design.” As discussed in Titan Tire, this typically involves identifying a “primary reference;” that is “something in existence, the design characteristics of which are basically the same as the claimed design.” Then, “other ‘secondary’ references ‘may be used to modify it to create a design that has the same overall visual appearance as the claimed design.’” Finally, to properly combine the references, the "secondary references must be 'so related [to the primary reference] that the appearance of certain ornamental features in one would suggest the application of those features to the other.'" Citations omitted. After reviewing this standard, the court reviewed the prior art of record and affirmed the district court’s holding that the accused infringer's invalidity defense had sufficient merit to defeat the PI.

Although dicta, the court pointed out that current test for obviousness of design patents may have similar flaws as the “point of novelty” test for infringement that was eliminated by the Federal Circuit's en banc decision is Egyptian Goddess. The court did not, however, take the opportunity to take on this issue. Instead, it simply pointed out that gyptian Goddess expressly states that “it is not a test for determining invalidity, but is designed solely as a test of infringement.” After noting this limitation, the Titan Tire court simply warns that “it is not clear to what extent, if any, the doctrine applicable to obviousness should be modified to conform to the approach adopted by this court in Egyptian Goddess.”

Another interesting, but unanswered question, is the role of the Supreme Court’s decision in KSR in determining obviousness in the context of design patents. In particular, Titan Tire objected to the trial court’s reference to the passage in KSR that the “predictable use of prior art elements according to their established functions” would be indicative of obviousness since, it argued, design patents do not have functional elements. The Federal Circuit stated that “it is not obvious that the Supreme Court necessarily intended to exclude design patents from the reach of KSR,” but found that this question need not be resolved to dispose of the present case.

What are the take aways from Titan Tire?

• Preliminary injunctions represent extraordinary relief and are difficult to obtain. (Of course, we new that already). The Federal Circuit’s discussion in Titan Tire is likely to make it easier to defeat a PI motion based on a reasonably presented invalidity defense.
  
• The ordinary observer test of Egyptian Goddess does not have any bearing on the validity of design patents. The rational behind eliminating the “point of novelty” test, however, may continue to influence the validity inquiry in the future.
  
• We should expect to see KSR-based arguments raised more often in the context of design patents.

A Holding of Invalidity Deserves a Complete Analysis

Last week, in Steven Ritchie et al. v. Vast Resources, Inc. (2008-1528, -1529) the Federal Circuit summarily reversed the findings of the district court and held that the asserted patent (RE 38,924, http://www.google.com/patents?id=LasVAAAAEBAJ&dq=RE38924) was invalid as being obvious. (Yes, I know that it is far more appropriate to say that the asserted or challenged claims were found invalid, but in this case, the Court doesn't mention which claims were on appeal or which claims were actually held to be invalid.)

The subject matter of the patent is somewhat low tech –OK, its a sex toy made of a type of slippery glass known as “borosilicate glass.” Notwithstanding the apparent simplicity of the underlying . . . umm . . . technology, before reaching the Federal Circuit, the patent survived both initial examination and re-issue proceedings at the USPTO and was found to be valid and infringed at the district court.

Judge Posner, sitting by designation, wrote the opinion that was joined by Chief Judge Michel and Judge Bryson. (The opinion can be found at http://www.cafc.uscourts.gov/opinions/08-1528.pdf). Judge Posner clearly had some fun writing this opinion, which includes a number of jokes directed at the subject matter of the patent. I enjoyed reading the opinion. Unfortunately, in the end, the opinion is long on wit and generalities about obviousness, but is extremly limited with respect to providing any real guidance on the application of the obviousness inquiry post-KSR.

In this opinion, there is very little discussion of the actual claim limitations in question, how the prior art was applied to those limitations, or the actual basis for deciding why a person of ordinary skill in the art would arrive at the conclusion that the differences between the prior art and the claimed invention were indeed obvious. From the opinion, the reader merely knows that both sex toys and borosilicate glass are well known. It is quite possible that the conclusion reached by the Federal Circuti is correct, but that conclusion simply does not flow from the information provided in the opinion.

Finding a patent claim invalid is a significant holding. As such, a finding of invalidity in the first instance by the Federal Circuit should be supported by a more thorough analysis that clearly supports the holding. Even patents directed to sex toys deserve an informed analysis regarding the Graham factors before finding a patent invalid! In my own humble opinion, the obviousness inquiry should not be relegated to an amorphous analysis akin to pornography, e.g., an “I know it when I see it” approach.

Without question, some patents are directed to subject matter that is obvious and those claims should be invalidated. When those cases are presented, the Federal Circuit would better serve patent owners, defendants, district courts and the patent bar by providing an analysis that informs the process and clearly justifies the result.