NEWPORT BEACH, Calif.--(BUSINESS WIRE)--Packers Plus Energy Services Inc., an innovative oilfield service provider, in conjunction with a subsidiary of Acacia Research Corporation (NASDAQ: ACTG), the leader in patent licensing, announced their collaboration on the licensing of a set of fundamental patents related to multi-zonal completion of horizontal wells including ball-drop, sliding sleeve and packer technology for use in the hydraulic fracturing of both tight and conventional oil and gas r