Patents by Inventor Robin Lawrence

Robin Lawrence 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).

  • Steroid anaesthetics of the pregnane and 19-norpregnane series
    Patent number: 3998829
    Abstract: Steroid anaesthetics of the pregnane and 19-norpregnane series are described, the compounds possessing a 3.alpha.-hydroxy group, a 5.alpha.-hydrogen atom or a 4,5-double bond, a 17.alpha.-hydrogen atom, a 20-oxo group and at the 21-position a hydrocarbon group which may be substituted by an oxo, ether, hydroxy, acyloxy, esterified carboxy, thioether, thioester, heterocyclic, amino or aromatic group, or a fluorine or chlorine atom. The acetals and 20-enol ethers of compounds having a 21-formyl group are also described.
    Type: Grant
    Filed: May 8, 1973
    Date of Patent: December 21, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Gordon Hanley Phillips, Robin Lawrence, Leslie Stephenson, Barry Edward Ayres
  • Steroidal anaesthetics of the pregnane and 19-norpregnane series
    Patent number: 3983111
    Abstract: Steroid anaesthetics of the pregnane and 19-norpregnane series are described, the steroids having a 3.alpha.-hydroxy group, a 17.alpha.-hydrogen atom, a 20-oxo group and at the 21-position a cyano, azido or basic amino group.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: September 28, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Gordon Hanley Phillipps, Robin Lawrence, Christopher Earle Newall
  • Anaesthetic steroids of the pregnane and 19-norpregnane series having a sulfur-containing group at the 21-position
    Patent number: 3959260
    Abstract: Steroid anaesthetics of the pregnane and 19-norpregnane series are described, the compounds possessing a 3.alpha.-hydroxy group, a 17.alpha.-hydrogen atom, a 20-oxo group and at the 21-position the residue of a sulphur nucleophile or a sulphone or sulphoxide grouping.
    Type: Grant
    Filed: July 16, 1974
    Date of Patent: May 25, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Gordon Hanley Phillipps, Robin Lawrence, Christopher Earle Newall, Michael Wright
  • Anaesthetic steroids of the androstance and pregnane series
    Patent number: 3953429
    Abstract: Steroids of the androstane and pregnane series possessing a 2.alpha.-hydrogen or halogen or an alkyl group; a 3.alpha.-hydroxy or acyloxy group, a 3.beta.-hydrogen or alkyl group; an 11.beta.-hydrogen or hydroxy group or an epoxy group linked also to the 9-position; an 11.alpha.-hydrogen or alkyl or allyl group; or an 11-oxo group; a 16 hydrogen or halogen or a methyl or dimethyl group; a 20-oxo or ethylenedioxy group; and a 20-methyl or alkoxy group. The compounds may be unsaturated at the 1(2), 8(9) or 9(11) positions.The compounds possess anaesthetic properties.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: April 27, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Martin Christopher Cook, Robin Lawrence, Gordon Hanley Phillipps, Anne Christine Hunter, Christopher Earle Newall, Leslie Stephenson, Niall Galbraith Weir