Patents by Inventor John W. Drew

John W. Drew 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).

  • Patent number: 6235162
    Abstract: In one embodiment, the present invention relates to a method of treating a solution containing hydroxylamine, involving subjecting the solution containing hydroxylamine to fractional distillation using a packed column thereby providing a first distillate; and subjecting the first distillate to flashover distillation thereby providing a second distillate containing a hydroxylamine solution. In another embodiment, the present invention relates to an ultrapure solution simply containing hydroxylamine, at least one stabilizer, and water.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: May 22, 2001
    Assignee: Sachem, Inc.
    Inventors: Hossein Sharifian, John W. Drew
  • Patent number: 4411429
    Abstract: A golf putter is disclosed comprising a shaft, an offset portion and a head. The head is laterally and vertically displaced from the shaft by the offset portion. The head is attached to the offset portion is such a way that when the putter is properly positioned for ball to club alignment, the offset portion is attached to an end portion of the head furthest from the golfer's body. The view presented thereby is of a shaft which appears to pass in a parallel but laterally displaced plane in front of the head. As viewed by the golfer, the golf ball appears to be bracketed by the head, offset portion and the shaft.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: October 25, 1983
    Inventors: John W. Drew, Joe M. Swift
  • Patent number: 4284328
    Abstract: This invention relates to safety fender trims mounted vertically on fender flanges at the motor vehicle wheel openings which not only perform improved water splash arrest and mud guard functions, but, with motor vehicles of increasingly varying widths on the roads, the trims primarily augment night driving safety particularly for the user, as well as others. Light reflective disc targets are bonded to fender trim extensions on the user car to reflect rearwardly, forwardly, or preferably both rearwardly and forwardly, the head light beams of other vehicles to pinpoint the presence of the user car in traffic, its width, and whether it is moving or parked.
    Type: Grant
    Filed: January 15, 1980
    Date of Patent: August 18, 1981
    Inventor: John W. Drews