Patents by Inventor John S. Dowrick

John S. Dowrick 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).

  • Injectable compositions of amoxycillin trihydrate
    Patent number: 4876086
    Abstract: Injectable pharmaceutical compositions are provided which comprise fine particles of amoxycillin trihydrate coated with a dispersing agent, the ratio of amoxycillin trihydrate to dispersing agent being from 1000:1 to 20:1. A preferred dispersing agent is a mixture of polyvinylpyrrolidone and lecithin. Such compositions give surprising prolonged blood levels of amoxycillin after administration. The compositions can be used in the treatment of both humans and domestic animals.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: October 24, 1989
    Assignee: Beecham Group p.l.c.
    Inventor: John S. Dowrick
  • Veterinary compositions for reducing mammary infections
    Patent number: 4472374
    Abstract: An intramammary composition containing a siloxane elastomer with incorporated antibacterial agent. The composition is of sufficiently low viscosity to facilitate application to the teat of a cow via the streak canal, and the composition remains sufficiently elastic to enable it to remain in place during the dry period and to allow it to be readily milked-out at the onset of lactation. The composition is useful in reducing mammary infections in cattle during their dry period and is compatible with conventional mastitis treatments at the end of lactation.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: September 18, 1984
    Assignee: Beecham Group p.l.c.
    Inventors: John S. Dowrick, Peter Balderstone
  • Intramammary compositions
    Patent number: 4401674
    Abstract: The stability of an oil intramammary formulation containing a suspension of a moisture sensitive penicillin is improved by incorporation therein of molecular sieve powder.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: August 30, 1983
    Assignee: Beecham Group Limited
    Inventor: John S. Dowrick
  • Intramammary compositions
    Patent number: 4282202
    Abstract: The stability of an oily intramammary formulation containing a suspension of a solid clavulanic acid salt is improved by incorporation therein of molecular sieve powder.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: August 4, 1981
    Assignee: Beecham Group Limited
    Inventor: John S. Dowrick
  • Veterinary composition for the treatment of mammary disorder in animals
    Patent number: 4073920
    Abstract: A veterinary composition for intramammary administration to animals comprising a suspension of a semi-synthetic penicillin in an oily vehicle, the said oily vehicle comprising tri-glycerides, or propylene glycol di-esters, of fatty acids containing 8-10 carbon atoms, has a short milk out time, good stability and shelf-life.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: February 14, 1978
    Assignee: Beecham Group Limited
    Inventor: John S. Dowrick
  • Intramammary compositions
    Patent number: RE31301
    Abstract: The stability of an oily intramammary formulation containing a suspension of a solid clavulanic acid salt is improved by incorporation therein of molecular sieve powder.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: July 5, 1983
    Assignee: Beecham Group p.l.c.
    Inventor: John S. Dowrick