Patents by Inventor Richard J. Yarwood

Richard J. Yarwood 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).

  • Patent number: 6726928
    Abstract: A process for the preparation of a rapidly disintegrating dosage form a pharmaceutically active substance which has an unacceptable taste wherein there is formed a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material. Discrete units of the suspension or solution are formed and the solvent is removed from the discrete units under conditions whereby a network of the carrier material carrying a dosage for the less soluble and more palatable form of the pharmaceutically active substance is formed.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: April 27, 2004
    Assignee: R.P. Scherer Technologies, Inc.
    Inventors: Richard J. Yarwood, Patrick Kearney, Andrew R. Thompson
  • Publication number: 20040028730
    Abstract: A process for the preparation of a rapidly disintegrating dosage form a pharmaceutically active substance which has an unacceptable taste wherein there is formed a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material. Discrete units of the suspension or solution are formed and the solvent is removed from the discrete units under conditions whereby a network of the carrier material carrying a dosage for the less soluble and more palatable form of the pharmaceutically active substance is formed.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 12, 2004
    Applicant: Lipton, Division of Conopco, Inc.
    Inventors: Richard J. Yarwood, Patrick Kearney, Andrew R. Thompson
  • Publication number: 20020142038
    Abstract: A process for the preparation of a rapidly disintegrating dosage form a pharmaceutically active substance which has an unacceptable taste wherein there is formed a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material. Discrete units of the suspension or solution are formed and the solvent is removed from the discrete units under conditions whereby a network of the carrier material carrying a dosage for the less soluble and more palatable form of the pharmaceutically active substance is formed.
    Type: Application
    Filed: April 18, 2000
    Publication date: October 3, 2002
    Inventors: Richard J. Yarwood, Patrick Kearney, Andrew R. Thompson
  • Patent number: 6212791
    Abstract: The invention permits the application of an identifying mark onto a fast-dissolving dosage form without the need for application of pressure or printing directly onto the dosage unit. The invention comprises preparing of a fast-dissolving dosage unit that is embossed with an identifying mark such as a manufacturer's logo, medicinal component strength, or other information relating to the unit. The desired identifying mark is first embossed onto the base of the container such as a blister pocket. Liquid suspension is then filled into the container and solidified, e.g., freeze-dried, therein. The resulting dosage unit in the container is thereby embossed with a substantial copy of the identifying mark that was embossed on the base of the container. The embossed identifying mark on the base of the container remains thereon as well thereby affording the ability to learn the identifying mark on the enclosed unit without opening the packet.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 10, 2001
    Assignee: R.P. Scherer Corporation
    Inventors: Andrew R. Thompson, Richard J. Yarwood, Patrick Kearney
  • Patent number: 5837287
    Abstract: A process for the preparation of an oral solid rapidly disintegrating dosage form of a pharmaceutically active substance which has an unacceptable taste which process comprises forming a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material, forming discrete units of the suspension or solution and removing the solvent from the discrete units under conditions whereby a network of the carrier material carrying a dosage of the less soluble and more palatable form of the pharmaceutically active substance is formed.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: November 17, 1998
    Assignee: R P Scherer Corporation
    Inventors: Richard J. Yarwood, Patrick Kearney, Andrew R. Thompson
  • Patent number: 5738875
    Abstract: A process for the preparation of an oral solid rapidly disintegrating dosage form of a pharmaceutically active substance which has an unacceptable taste which process comprises forming a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material, forming discrete units of the suspension or solution and removing the solvent from the discrete units under conditions whereby a network of the carrier material carrying a dosage of the less soluble and more palatable form of the pharmaceutically active substance is formed.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: April 14, 1998
    Assignee: R.P. Scherer Corporation
    Inventors: Richard J. Yarwood, Patrick Kearney, Andrew R. Thompson
  • Patent number: 5457895
    Abstract: The invention permits the application of an identifying mark onto a freeze-dried tablet without the need for application of pressure or for printing directly on the tablet. The invention comprises the preparation of a freeze-dried unit that is embossed with an identifying mark such as a manufacturer's logo, medicinal component strength, or other information relating to the unit. The desired identifying mark is first embossed onto the base of a container such as a blister pocket. Liquid suspension is then filled into the container and freeze-dried therein. The resulting freeze-dried unit in the container is thereby embossed with substantial copy of the identifying mark that was embossed on the base of the container. The embossed identifying mark on the base of the container remains thereon as well, providing at reduced manufacturing cost the added ability to learn the identifying mark on the enclosed freeze-dried unit without opening the blister pack.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: October 17, 1995
    Assignee: R. P. Scherer Corporation
    Inventors: Andrew R. Thompson, Richard J. Yarwood, Patrick Kearney
  • Patent number: 5343672
    Abstract: An improved method for manufacturing freeze dried pharmaceutical tablets in blister packs is disclosed. Liquid dosages are introduced into a multilayer laminated blister sheet having an impermeable intermediate layer that is positioned between first and second outer layers, each of which has substantially the same coefficient of thermal expansion. The properties of the outer layers of the blister sheet are such that there are no inter-layer stresses that will cause curvature of the blister sheet when it is subjected to temperature changes during the freezing and freeze drying steps. Following the introduction of the dosages into the depressions of the blister sheet, the dosages are frozen and freeze dried. A lidding sheet is then attached to the blister sheet to seal the solid dosages into the blister pack.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: September 6, 1994
    Inventors: Patrick Kearney, Andrew R. Thompson, Richard J. Yarwood
  • Patent number: 4983617
    Abstract: The invention concerns a new stable crystal form of anhydrous, crystalline 1,4-dihydro-2-(imidazol-1-ylmethyl)-6-methyl-4-(3-nitrophenyl)pyridine)-3, 5-dicarboxylic acid 3-ethyl 5-methyl diester hydrochloride, "having a melting point greater than about 215.degree. C., an infra red spectrum (nujolmull) having sharp peaks at 3195 cm.sup.-1, 3100 cm.sup.-1, 2735 cm.sup.-1 and 2625 cm.sup.-1 and an x-ray powder diffraction pattern with specific peaks occurring at 2.theta.=12.3.degree. and 44.5.degree..
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 8, 1991
    Assignee: John Wyeth and Brothers Limited
    Inventors: Gerald Bradley, Geoffrey P. R. Carr, Albert Opalko, Richard J. Yarwood
  • Patent number: 4597969
    Abstract: A granulation method involving polysaccharide gelling agents, e.g., alginic acid, and a metal salt, e.g., magnesium salt is developed for the stabilization of heat and/or moisture sensitive drugs or food supplements such as Efrotomycin, avermectins, milbemycins, mocimycin and other drugs. It has been found that the granules so obtained can be incorporated into various formulations without substantial decomposition.
    Type: Grant
    Filed: February 1, 1983
    Date of Patent: July 1, 1986
    Assignee: Merck Sharp & Dohme
    Inventors: Howard C. Maxfield, Anthony J. Phillips, Richard J. Yarwood