Printed, Embossed, Grooved, Or Perforated Patents (Class 424/467)
  • Patent number: 4814178
    Abstract: Non-compressed sustained release tablets which will float on gastric fulid are described. The tablets comprise a hydrocolloid gelling agent, the selected therapeutic agent and water.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: March 21, 1989
    Inventors: Sanford Bolton, Philip H. Izevbehai, Subhash Desai
  • Patent number: 4814179
    Abstract: Non-compressed sustained release tablets which will float on gastric fluid are described. The tablets comprise a hydrocolloid gelling agent, a therapeutically acceptable inert oil, the selected therapeutic agent and water.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: March 21, 1989
    Assignee: St. John's University
    Inventors: Sanford Bolton, Subhash Desai
  • Patent number: 4814181
    Abstract: A dosage form is disclosed comprising a wall that surrounds a compartment with an exit means in the wall. The compartment comprises a first or fast releasing lamina and a second or short releasing lamina that are delivered through the exit means over two different periods of time.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: March 21, 1989
    Assignee: ALZA Corporation
    Inventors: Maureen L. Jordan, Atul D. Ayer, Paul R. Magruder, David E. Edgren
  • Patent number: 4801460
    Abstract: Process for the preparation of solid pharmaceutical forms by mixing one or more pharmaceutical active compounds with one or more fusible, pharmacologically tolerated binders and, if required, other conventional pharmaceutical auxiliaries, at from 50.degree. to 180.degree. C., and subjecting the mixture to injection molding or extrusion and shaping, wherein the fusible binder used is a NVP polymer which contains not less than 20% by weight of NVP as copolymerized units, and, where they are present, all of whose comonomers contain nitrogen and/or oxygen.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: January 31, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Helmut Goertz, Roger G. Klimesch, Klaus Laemmerhirt, Siegfried Lang, Axel Sanner, Reinhard Spengler
  • Patent number: 4801461
    Abstract: A dosage form is disclosed for delivering the beneficial drug pseudoephedrine to a biological environment of use.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: January 31, 1989
    Assignee: ALZA Corporation
    Inventors: Larry G. Hamel, Felix A. Landrau, George V. Guittard, Patrick S. L. Wong
  • Patent number: 4800084
    Abstract: The discovery presented herewith concerns a pharmaceutical product in the form of a pellet with improved continous, delayed medicament substance emission through a coating, which is made of a material that does not dilute in gastric and intestinal juices and which is impermeable for gastric and intestinal juices and which tightly seals the core made of material that is dilutable in gastric and intestinal juices.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: January 24, 1989
    Inventor: Horst Zerbe
  • Patent number: 4793493
    Abstract: The present invention is a multidose capsule including a tube having a first end and a second end and a dividing wall, supported by the tube, which separates the tube into first and second chambers. First and second removably supportable caps are slidable along each tube end to the extent sufficient to securely seal the chamber thereunder. In alternative embodiments both the dividing wall and the capsule periphery with respect thereto are frangible such that the capsule may be broken in two under an applied stress.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: December 27, 1988
    Inventor: Walter J. Makiej, Jr.
  • Patent number: 4792448
    Abstract: A device for zero order releasing of biologically active substances into a fluid medium comprising a cylindrical tablet or bolus covered with an impermeable wall or coating from which strips of said wall or coating have been removed.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: December 20, 1988
    Assignee: Pfizer Inc.
    Inventor: Gautam R. Ranade
  • Patent number: 4786504
    Abstract: Colored intagliated articles, for example colored intagliated pharmaceutical tablets, on which the intagliations are highlighted. The articles are colored intagliated articles bearing a layer consisting essentially of a defined optically anisotropic substance, for example magnesium carbonate. Process for manufacturing said articles.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: November 22, 1988
    Assignee: Imperial Chemical Industries, plc
    Inventors: Sidney F. Forse, Raymond C. Rowe
  • Patent number: 4773907
    Abstract: A delivery system is disclosed comprising a wall surrounding a lumen containing a plurality of dosage delivery devices. The wall is formed of an environment sensitive material that releases the dosage forms into the environment. The dosage forms comprise a semipermeable wall surrounding a compartment containing drug. A passageway through the semipermeable wall releases drug from the dosage form to the environment.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: September 27, 1988
    Assignee: ALZA Corporation
    Inventors: John Urquhart, Felix Theeuwes
  • Patent number: 4753802
    Abstract: An osmotic dosage form comprising verapamil and mannitol in a nonequilibrium ratio.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: June 28, 1988
    Assignee: Alza Corporation
    Inventors: Sally I. Stephens, L. G. Hamel
  • Patent number: 4751071
    Abstract: An osmotic delivery system is disclosed for delivering a useful agent at a controlled and constant rate modulated by a pulsed delivery of the useful agent to an environment of use.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: June 14, 1988
    Assignee: Alza Corporation
    Inventors: Paul R. Magruder, Brian Barclay, Patrick S. L. Wong, Felix Theeuwes
  • Patent number: 4735805
    Abstract: A bisectable drug tablet having an elongated tablet body with a length greater than its width. The tablet body also has top and bottom surfaces with a concavity being provided in each thereof. A breaking groove is formed in at least one of the concavities and extends laterally across the width of the tablet at an apex of the one cavity. Thus, upon application of a downward pressure to either the top or bottom surfaces of the tablet, when the other of the top and bottom surfaces faces downwardly and the opposite longitudinal ends of the tablet rest on a support surface, the tablet will fracture along the groove, the fracture occurring irrespective of whether the breaking groove faces toward or away from the support surface.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: April 5, 1988
    Assignee: The Upjohn Company
    Inventors: Phillip F. Ni, Larry F. Odar
  • Patent number: 4720378
    Abstract: Coated articles, for example colored pharmaceutical tablets, bearing highlighted intagliations. The articles are colored intagliated articles bearing at least one film coat comprising at least one optically anisotropic substance, for example magnesium carbonate, and at least one film coating agent. Process for manufacturing said articles.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: January 19, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Sidney F. Forse, Raymond C. Rowe
  • Patent number: 4683131
    Abstract: A novel divisible delayed release pharmaceutical tablet, wherein the rate of release of active ingredient is independent of the size and nature of the total surface area, and the fragments of which have the same characteristics of release of active ingredient as the undivided tablet.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: July 28, 1987
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Arun R. Gupte
  • Patent number: 4681583
    Abstract: A delivery system is disclosed comprising a wall surrounding a lumen containing a plurality of dosage delivery devices. The wall is formed of an environment sensitive material that releases the dosage forms into the environment. The dosage forms comprise a semipermeable wall surrounding a compartment containing drug. A passageway through the semipermeable wall releases drug from the dosage form to the environment.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: July 21, 1987
    Assignee: Alza Corporation
    Inventors: John Urquhart, Felix Theeuwes
  • Patent number: 4675174
    Abstract: A dispensing system is disclosed for delivering a beneficial agent. The dispensing system comprises (1) a housing defining an internal space, (2) a gas-generating composition in the space, (3) a dense member in the space, (4) a composition comprising a beneficial agent and a non-toxic heat responsive carrier in the space, and (5) a passageway in the housing for delivering the beneficial agent for the dispensing system.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: June 23, 1987
    Assignee: Alza Corporation
    Inventor: James B. Eckenhoff
  • Patent number: 4663147
    Abstract: A device for the release of a diffusible solid in a fluid medium which comprises a disc which comprises a substantially uniform mixture of said diffusible solid and a polymer which is insoluble in and impermeable to said fluid medium and impermeable to said diffusible solid. The surfaces of said disc are coated with a polymer which is insoluble in and impermeable to said fluid medium and impermeable to said diffusible solid, with the exception of one or more apertures which extend through the disc and expose a portion of the mixture of diffusible solid and polymer to the fluid medium when the device is immersed therein. The aperture or apertures are placed in said disc such that as said fluid medium enters the disc through said aperture or apertures, the ratio of surfce area of diffusible solid exposed to the fluid medium to the length of the path through which the exposed solid must diffuse to exit the disc remains substantially constant.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: May 5, 1987
    Assignee: International Minerals & Chemical Corp.
    Inventor: Randolph B. DePrince
  • Patent number: 4663149
    Abstract: A dispenser is disclosed for delivering a beneficial agent to an environment of use. The dispenser comprises a semipermeable wall surrounding a compartment containing a heat responsive composition, and an expandable composition. A passageway in the wall connects the compartment with the exterior of the dispenser.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: May 5, 1987
    Assignee: Alza Corporation
    Inventors: James B. Eckenhoff, Felix Theeuwes, Joseph C. Deters
  • Patent number: 4661367
    Abstract: Colored intagliated articles, for example colored intagliated pharmaceutical tablets, on which the intagliations are highlighted. The articles are colored intagliated articles bearing a layer consisting essentially of a defined optically anisotropic substance, for example magnesium carbonate. Process for manufacturing said articles.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: April 28, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventors: Sidney F. Forse, Raymond C. Rowe
  • Patent number: 4647449
    Abstract: A medicament adsorbate containing a magnesium trisilicate having a surface area of at least 400 m.sup.2 /g and having a flake-like structure with multiple interstitial spaces, and having adsorbed therein from about 1% to about 20% by weight of the adsorbate of a medicament drug, wherein the medicament drug is an alkaloid.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: March 3, 1987
    Assignee: Warner-Lambert Company
    Inventors: David Peters, John Denick, Jr., Anil K. Talwar
  • Patent number: 4647448
    Abstract: The invention describes a pharmaceutical dosage unit suitable for oral administration with at least one face having a recess, which recess extends from one edge across and into the face; the recess being so shaped as to accommodate at least the tip of the user's tongue.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: March 3, 1987
    Assignee: Smith Kline & French Laboratories Limited
    Inventor: Geoffrey D. Tovey