Apple v. SpaceTime3D — Federal Circuit Leaves Split PTAB Result Intact for 3D Webpage Interface Patent

Background

SpaceTime3D’s U.S. Patent No. 8,881,048 covers a graphical interface that presents webpages as objects in a simulated three-dimensional space and opens a selected webpage in two dimensions. In inter partes review, the PTAB divided the claims: it upheld claims 1–13 but found claims 14–18 obvious. Apple and Google appealed the surviving claims, and SpaceTime3D cross-appealed the invalidated claims.

The Court’s Holding

The Federal Circuit affirmed every part of the PTAB’s mixed obviousness decision. Apple and Google did not show claims 1–13 unpatentable, while SpaceTime3D failed to overturn the Board’s conclusion that claims 14–18 were obvious.

The panel rejected Apple’s contention that the Board used an improperly rigid obviousness test, concluding that substantial evidence supported the Board’s findings about what the prior art taught and why a skilled artisan would—or would not—combine it. It also upheld the Board’s claim construction and credited the Board’s reading of the Tsuda reference as showing windows arranged in foreground and background planes for the claims found obvious.

Key Takeaways

• A Federal Circuit obviousness appeal remains highly dependent on the PTAB’s fact findings and the substantial-evidence standard.
• A single patent can emerge from IPR with materially different outcomes for different claim groups.
• The decision is nonprecedential, but it illustrates the difficulty both petitioners and patent owners face when attacking supported Board findings.

Why It Matters

The ruling preserves the core split outcome for a patent directed to switching between 3D and 2D webpage views. It also shows that labeling an obviousness analysis “rigid” will not succeed where the Board actually evaluated the proposed combination and supported its conclusions with record evidence.