Case: In re Icon Health and Fitness, Inc., 2006-1573, (Reexamination No. 90/005, 117) (Fed. Cir. 8/1/2007)
The One Sentence Summary: The Federal Circuit affirmed the Board's decision holding Icon's claims based on a treadmill with a folding base unpatentable for obviousness, based on the combination of an advertisement for a folding treadmill and a patent for bed springs.
What They Were Fighting About: Icon's treadmill claims included a limitation calling for a "gas spring connected between the tread base and the upright structure to assist in stably retaining" the tread base. An advertisement from another company showed a folding treadmill, and a prior patent existed for gas springs used to hold a folding bed in a cabinet or recess. The issue was therefore whether Icon's claim was obvious in light of this prior art.
Federal Circuit Holdings:
- The bed springs were analogous art, because like Icon's springs, both address the need to stably retain a folding mechanism, and both also contained discussions for creating a lifting force. The Federal Circuit concluded that analogous art could come from any area describing hinges, springs, latches, counterweights, or similar mechanisms -- including a folding bed.
- Moreover, the bed spring inventor was addressing a similar problem to that Icon had addressed, specifically, devising counterbalancing mechanisms.
- The Federal Circuit rejected the argument that the bed spring patent taught away from Icon's invention -- while the bed springs were a dual action spring, and Icon's were single action, the bed spring patent had discussed that single action springs would produce the same result. Icon had also argued the bed springs would have provided the wrong type of force for its purposes, but the Federal Circuit noted that while that argument might have carried weight had Icon narrowed its claims, having failed to do so, the argument lacked force.
- Given the broad scope of Icon's claims, the gas springs patent for beds fell within that scope, because Icon had not limited the manner in which its gas springs would assist in stably retaining the tread base. Indeed, the Board had specifically criticized Icon for relying solely on attorney argument on this question.
- Finally, the Federal Circuit noted that the specifications had provided little discussion of the definition of "stably retain." Icon's failure to amend to more clearly define the term meant it must now submit to the Board's interpretation.
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