Patents by Inventor Peter W. Straford

Peter W. Straford 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).

  • Process for preparing organophosphates useful for increasing the ocular haemo- and biocompatibility of synthetic polymers
    Patent number: 5591882
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: January 7, 1997
    Assignee: Biocompatibles Limited
    Inventors: Peter W. Straford, Michael J. Driver
  • Method of improving the ocular haemo and biocompatibility of synthetic polymers
    Patent number: 5422402
    Abstract: A process of treating suitable synthetic polymers comprising the steps of (a) where appropriate, activating the surface to be treated, and, if necessary, providing spacer groups thereon; and (b) treating the surface with a compound of Formula (I), ##STR1## wherein Y' is an alkylene group optionally containing an aryl group, a poly(ethylene glycol) or a glycerol group; R may be the same or different and each is a straight or branched C.sub.1-4 alkyl group, n is from 1 to 4 and X is a group which reacts with functional groups of the polymer. Polymeric surfaces and materials thus produced and shaped articles containing such surfaces and materials.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 6, 1995
    Assignee: Biocompatibles Limited
    Inventors: Roderick W. J. Bowers, Stephen A. Jones, Peter W. Straford, Michael J. Driver
  • Method of reducing protein deposition in sight correction devices
    Patent number: 5418295
    Abstract: A process for treating polymeric contact lenses comprising the steps of: (a) where necessary, activating the polymeric surface to be treated and (b) treating the surface with a compound of formula (I), wherein X is a group which reacts with the polymer surface; Y is straight or branched C.sub.1-6 alkylene; the groups R are the same or different and each is straight or branched C.sub.1-4 alkyl, and A.sup.- is a counterion.X--Y--CH.sub.2 N.sup..sym. R.sub.3 A.sup..crclbar.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: May 23, 1995
    Assignee: Biocompatibles Limited
    Inventors: Roderick W. J. Bowers, Stephen A. Jones, Peter W. Straford, Michael J. Driver