PTAB Says Rehashed Args. Sink Pipe Rehab Patent Reviews

Law360, New York (August 27, 2015, 1:34 PM EDT) -- The Patent Trial and Appeal Board has declined BLD Services LLC's requests to institute America Invents Act reviews of two LMK Technologies LLC trenchless sewer pipe rehabilitation patents, saying BLD tried to take a second bite at the apple to invalidate claims the PTAB had already declined to review.

In a pair of decisions issued Monday, a three-judge panel for the PTAB decided not to institute inter partes reviews of certain claims of LMK's U.S. Patent Numbers 8,667,991 and 7,975,726 after concluding that BLD Services' petitions raised the same arguments in its February petitions as it did in earlier, unsuccessful challenges...

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