Patents by Inventor Niall Galbraith Weir

Niall Galbraith Weir 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).

  • .DELTA..sup.3 -3-Vinyl or substituted vinyl-4-carboxy cephalosporins
    Patent number: 4107431
    Abstract: The invention is concerned with .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl or substituted 3-vinyl groups as well as with phosphorous intermediates useful in the preparation thereof.
    Type: Grant
    Filed: July 8, 1974
    Date of Patent: August 15, 1978
    Assignee: Glaxo Laboratories Limited
    Inventors: John Colin Clark, James Kennedy, Alan Gibson Long, Niall Galbraith Weir
  • Process for preparing cephalosporin compounds
    Patent number: 3998821
    Abstract: The invention is concerned with the preparation of .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-ethyl or substituted 3-ethyl group by means of phosphorous intermediates.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: December 21, 1976
    Assignee: Glaxo Laboratories Limited
    Inventor: Niall Galbraith Weir
  • 3-Vinyl-7.beta.-(2,2-disubstituted acetamido)-cephalosporins
    Patent number: 3994884
    Abstract: The invention is concerned with .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl group and having 2,2-disubstituted acetamido group at the 7-position.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: November 30, 1976
    Assignee: Glaxo Laboratories Limited
    Inventor: Niall Galbraith Weir
  • 3-Ethyl- and 3-(2'cyanoethyl)-cephalosporins
    Patent number: 3974152
    Abstract: New cephalosporin compounds are described characterized by possessing an ethyl group or a 2-cyanoethyl group as 3-position substituent.
    Type: Grant
    Filed: November 19, 1973
    Date of Patent: August 10, 1976
    Assignee: Glaxo Laboratories Limited
    Inventor: Niall Galbraith Weir
  • Process for the preparation of D(-)-penicillamine and salts thereof
    Patent number: 3960940
    Abstract: D(-)-Penicillamine and salts thereof may be prepared by reacting a 6-amino or blocked 6-amino penicillin e.g. penicillin G or penicillin V, or a salt thereof, with a hydrazine having two --NH-groups, or a salt or solvate thereof.
    Type: Grant
    Filed: August 14, 1974
    Date of Patent: June 1, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Joseph Elks, Niall Galbraith Weir, Timothy Larry Gane, Brian Burton
  • 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