(April 26, 2024, 1:10 PM EDT) -- ALEXANDRIA, Va. — Although rejecting a position advanced by Halliburton Energy Services Inc. that an examiner erred in conducting an appeal conference with an unqualified conferee, the Patent Trial and Appeal Board on April 26 found examiner error in a rejection of all 25 claims of Halliburton’s application to patent a liner used in shaped charges....