Patents by Inventor Graham R. Lloyd

Graham R. Lloyd 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).

  • Snake trapping device
    Patent number: 6009661
    Abstract: A snake trap is disclosed in which a trigger activated door (4) closes in response to a horizontal force being applied to the trigger (7) which is pushed against by the snake as it moves within the trap.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: January 4, 2000
    Inventor: Graham R. Lloyd
  • Method to treat animal skins prior to tanning
    Patent number: 5376142
    Abstract: A method for treating animal skins, prior to tanning including contacting animal skins with an aqueous degreasing solution containing brine and an effective amount of a shrink inhibitor, the shrink inhibitor being(a) at least one hydroxyalkyl phosphine compound of the formula(HORPR.sub.n.sup.1 O.sub.m).sub.x X.sub.ywhereinR is a C.sub.1 -C.sub.24 alkyl or a C.sub.1 -C.sub.24 alkylene;R.sup.1 is a C.sub.1 -C.sub.26 alkyl, a C.sub.1 -C.sub.24 alkenyl or ROH;X is an anion, whereby the hydroxyalkyl phosphine compound is at least sparingly soluble in water;x is a whole number equal to the valency of X;n=2 or 3 and m=0 or 1, whereby (n+m)=2 or 3;y=0 or 1, whereby (n+y)=2 or 4; or(b) a condensate of at least one of the compound (a), the condensate being at least sparingly water-soluble.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: December 27, 1994
    Assignee: Albright & Wilson Limited
    Inventors: Nigel S. Matthews, Graham R. Lloyd