In re Abbott Diabetes Care, Inc.

Abbott owns the 752 patent and the 509 patent, which share a common specification that describes methods and devices “for the in vivo monitoring of an analyte using an electrochemical sensor to provide information to a patient about the level of the analyte” in the bloodstream. The specification describes methods and devices for monitoring glucose levels for diabetics. And notes that a variety of devices exist for monitoring glucose levels in the blood stream, but some of these devices include sensor guides that are “typically bulky and do not allow for freedom of movement.” In response to a third-party request for reexamination, the Board of Patent Appeals and Interferences rejected several claims in the patents as indefinite, anticipated, or obvious over several combinations of prior art references. The Federal Circuit vacated in part, noting that the U.S. PTO conceded that the examiner’s official notice rejections should be withdrawn. The rejections were based on unreasonable claim constructions; under the broadest reasonable construction, “electrochemical sensor” is properly interpreted to mean a discrete electrochemical sensor devoid of external connection cables or wires to connect to a sensor control unit. View "In re Abbott Diabetes Care, Inc." on Justia Law