Patents by Inventor Richard A. Hahn

Richard A. Hahn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dig under apparatus and process
    Patent number: 8484866
    Abstract: A soil removal apparatus in one embodiment has a motive power unit and an excavator joined to the motive power unit by a coupler, the excavator extending laterally of the motive power unit. The coupler includes a manipulator for manipulating the excavator to loosen and displace soil material in a path lateral to a path of movement of the motive power unit. The method relates to undercutting an object with a motive power unit, selectively halting and moving the motive power unit, and loosening and displacing soil lateral to the path of travel of the motive power unit.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 16, 2013
    Assignee: Quanta Associates, L.P.
    Inventors: John Walter Fluharty, Jay Wendell Fluharty, Karl D. Quackenbush, Richard A. Hahn
  • DIG UNDER APPARATUS AND PROCESS
    Publication number: 20110088291
    Abstract: A soil removal apparatus in one embodiment has a motive power unit and an excavator joined to the motive power unit by a coupler, the excavator extending laterally of the motive power unit. The coupler includes a manipulator for manipulating the excavator to loosen and displace soil material in a path lateral to a path of movement of the motive power unit. The method relates to undercutting an object with a motive power unit, selectively halting and moving the motive power unit, and loosening and displacing soil lateral to the path of travel of the motive power unit.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 21, 2011
    Inventors: John Walter Fluharty, Jay Wendell Fluharty, Karl D. Quackenbush, Richard A. Hahn
  • Method for minimizing and containing ischemic and reperfusion injury
    Patent number: 5455229
    Abstract: The present invention is a method for minimizing and containing injury caused when tissue is subject to ischemia and reperfusion. The method comprises administering certain derivatized tripeptide arginal compounds concurent with, or immediately after, reestablishing blood flow to the ischemic tissue. The method is particularly useful for minimizing and containing damage to the heart during evolving myocardial infarction.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: October 3, 1995
    Assignee: Eli Lilly and Company
    Inventors: Richard A. Hahn, Brian R. MacDonald, Robert T. Shuman, Gerald F. Smith
  • Method of blocking peripheral norepinephrine release
    Patent number: 4468401
    Abstract: Trans-4aR-5-n-propyl-4,4a,5,6,7,8,8a,9-octahydro-1H(and 2H)pyrazolo[3,4-g]quinoline and pharamceutically-acceptable salts thereof, blocks norepinephrine release from peripheral sympathetic nerve terminals that innervate arterial muscle fibers in hypertensive mammals to reduce blood pressure.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: August 28, 1984
    Assignee: Eli Lilly and Company
    Inventor: Richard A. Hahn