RatnerPrestia secures serial wins from the PTAB upholding patentability

AMETEK Denmark AS’ US Patent 8342742B2 relates to a temperature calibrating system.

On April 15, 2019, global IP firm RatnerPrestia, for the second time, emerged from the Patent Trial and Appeal Board (PTAB) with a final written decision confirming the patentability of all claims in U.S. Patent No. 8,342,742, owned by test and calibration instruments maker AMETEK Denmark AS. 

Fluke Corp., a Washington-based tool manufacturer, had challenged the ’742 Patent in an inter partes review.

The PTAB first upheld the patentability of certain claims of the ’742 Patent, directed to a temperature calibrating system, as not being anticipated by the prior art cited by Fluke in its Petition.

While on appeal at the Court of Appeals for the Federal Circuit, the Supreme Court decided SAS Institute v. Iancu, which eliminated the PTAB practice allowing partial institution in an IPR.

Because the PTAB had instituted the inter partes review on some, but not all of the claims challenged by Fluke—contrary to SAS Institute—the CAFC remanded the case back for further consideration.

Following remand and additional briefingthe PTAB issued a second final written decision which not only reaffirmed the patentability of the ’742 patent over Fluke’s anticipation arguments, but also upheld the patentability of the ’742 Patent over Fluke’s obviousness arguments.

The RP team consisted of shareholders Benjamin Leace, Christopher Blaszkowski and Andrew Koopman.