Background
Transocean held patents on an ultra-deepwater drilling rig design — specifically, a dual-activity drilling system that allowed drilling operations and completion operations to be conducted simultaneously on a single rig, dramatically improving operational efficiency in ultra-deepwater oil and gas exploration. The patented dual-activity design had been enormously commercially successful: it formed the basis for several generations of Transocean’s drillship and semi-submersible rigs, and Transocean commanded premium day rates because of the system’s superior efficiency.
Maersk Contractors USA developed competing ultra-deepwater drilling rigs and Transocean sued for infringement. Maersk challenged the patents as obvious, arguing that the dual-activity concept could have been assembled from elements in the prior art by a skilled drilling engineer. The Southern District of Texas granted Maersk summary judgment of invalidity based on obviousness, finding that the prior art disclosed each element of the claims and that a skilled engineer would have been motivated to combine those elements. Transocean appealed, arguing that the district court had failed to adequately analyze the powerful objective evidence of non-obviousness it had presented.
The Court’s Holding
The Federal Circuit reversed and remanded. The court held that the district court’s obviousness analysis was legally deficient because it had not adequately considered the objective indicia of non-obviousness — what the court called secondary considerations — that Transocean had presented. These included: (1) substantial commercial success of the dual-activity rig design, including premium licensing revenues and market dominance; (2) evidence that the industry had sought but failed for years to achieve simultaneous drilling and completion operations; and (3) evidence that other companies had tried and failed to design a commercially viable dual-activity system before Transocean succeeded.
The court reiterated that secondary considerations are not merely supplementary to the obviousness analysis — they are part of the full § 103 inquiry required by Graham v. John Deere (1966). A court cannot reach a finding of obviousness without considering and weighing objective evidence of non-obviousness alongside the prior art analysis. When the objective evidence is strong — as Transocean’s record showed — it can overcome a prima facie case of obviousness. The court remanded for the district court to conduct the full four-factor Graham analysis with appropriate attention to the secondary considerations.
Key Takeaways
- Secondary considerations of non-obviousness — commercial success, long-felt need, failure of others, and unexpected results — are not optional supplements; they are required parts of the full obviousness analysis under Graham v. John Deere and cannot be dismissed without specific reasoning.
- A prima facie case of obviousness based on prior art element-by-element can be overcome by strong objective evidence showing that the invention solved a long-standing industry problem, achieved commercial success, or succeeded where others had failed.
- The nexus requirement — that commercial success or other objective indicia must be causally connected to the claimed invention — should be carefully addressed in the factual record through licensing history, market data, and expert testimony.
- Patent practitioners defending complex mechanical or engineering inventions against obviousness should develop robust secondary considerations evidence early in litigation, including industry need surveys, prior failed attempts by competitors, and licensing data.
Why It Matters
Transocean v. Maersk was an important reminder of the mandatory role of secondary considerations in the obviousness analysis. In the post-KSR environment — where courts adopted a more flexible, common-sense approach to obviousness — there was a risk that secondary considerations would be underweighted in favor of straightforward prior art combinations. The Federal Circuit’s reversal emphasized that secondary considerations are not afterthoughts; they are essential factual inputs that can decisively affect the obviousness outcome.
For the offshore drilling and oil-and-gas services industry — and more broadly for any capital-intensive industry where incremental engineering advances require enormous investment — the ruling reinforced the importance of documenting the history of industry need and failed attempts before the invention was made. A well-developed secondary considerations record can be the difference between a valid patent and summary judgment of invalidity.