Realtime Data, LLC v. Iancu, No. 18-1154 (Fed. Cir. 2019)Annotate this Case
Realtime’s 812 patent discloses “[s]ystems and methods for providing lossless data compression and decompression . . . [that] exploit various characteristics of run-length encoding, parametric dictionary encoding, and bit packing.” ’ Run-length encoding is a form of lossless data compression where a “run” of characters is replaced with an identifier for each individual character and the number of times it is repeated. In inter partes review, the Patent and Trademark Office’s Patent Trial and Appeal Board found that all of the challenged claims would have been obvious over the prior art, 35 U.S.C. 103(a). The Federal Circuit affirmed. The Board was not required to make any finding regarding a motivation to combine given its reliance on the prior art alone, which disclosed every element of claims 1–4, 8, and 28. In relying on the prior art alone, the Board did not violate section 312(a)(3) or other notice requirements. The Board did not expressly construe the phrase “maintaining a dictionary,” but found that the prior art satisfied this limitation because it disclosed all of the steps in dependent claim 4.