Is Common Sense Simple?

• Published date: 13 February 2024
• Subject Matter: Intellectual Property, Patent
• Law Firm: Axinn Veltrop & Harkrider
• Author: Mr Don Wang

In analyzing patent obviousness, how "simple" must the relevant technology be in order for "common sense" to supply a limitation missing in the prior art?

Ever since the Supreme Court referenced "common sense" five times in KSR Int'l v. Teleflex, 550 U.S. 398 (2007), the propriety of invoking "common sense" as a rationale for obviousness has been subject to continuous debate. In Arendi v. Apple, 832 F.3d 1355, 1362 (Fed. Cir. 2016), the Federal Circuit rejected the argument that searching a database for a phone number was common sense where searching a database for data was in the prior art, noting that relying on common sense to supply a limitation is only appropriate if "the limitation in question was unusually simple and the technology particularly straightforward." In B/E Area v. C&D Zodiac, 962 F.3d 1373, 1380-81 (Fed. Cir. 2020), the Federal Circuit held that modifying a flat wall with a curved wall was common sense such that the "second recess" claim limitation in a patent claim directed to space-saving technology in airplane lavatories was obvious. The upcoming oral argument in the Fullview v. Polycom, No. 23-1201, may offer further clues as to how simple the subject technology must be in order for common sense to supply a missing claim limitation.

The asserted claims in Fullview are generally directed to a panoramic viewing apparatus with three sets of components (1) a plurality of image processing devices (e.g., cameras); (2) a pyramid-shaped element with reflective sides (e.g., mirrors) to redirect the fields of view of the cameras; and (3) a supporting member (e.g., a pole) connecting both the pyramid-shaped element and the cameras.

The parties agreed that the asserted single prior art reference disclosed all of these components but disputed whether a support member "intersecting an...