Patents by Inventor Karen A. Coppens

Karen A. Coppens 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: 9649278
    Abstract: An injection-molded shell of a dosage form of good quality is producible by a) providing a composition comprising i) from 25 to 90 weight percent of ethylcellulose, ii) from 7.5 to 60 weight percent of a polysaccharide or polysaccharide derivative being different from ethylcellulose, and iii) from 2.5 to 50 weight percent of at least one component being different from polysaccharides and polysaccharide derivatives, based on the total weight of the composition, with the proviso that the composition comprises zero or not more than 10 weight percent of gelatin and zero or not more than 10 weight percent of a polymer comprising homo- or copolymerized acrylic acid, homo- or copolymerized methacrylic acid, a homo- or copolymerized acrylate or a homo- or copolymerized methacrylate, and b) subjecting the composition to shearing and heat to plasticize the composition and injection-molding the plasticized composition into a three-dimensional shell of a dosage form.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: May 16, 2017
    Inventors: Michael D. Read, Karen A. Coppens, Mark J. Hall, Jin Zhao
  • Patent number: 9198865
    Abstract: A biologically active composition comprising an ethylcellulose, a polyethylene oxide and a biologically active ingredient, wherein the amount of ethylcellulose is at least about (15) percent, based on the total weight of the composition, can be used in melt-extrusion processes to produce pharmaceutical dosage forms.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: December 1, 2015
    Inventors: Mark J. Hall, Karen A. Coppens, Pamela S. Larsen, Shawn A. Mitchell, Michael D. Read, Uma Shrestha
  • Publication number: 20150072858
    Abstract: The present disclosure is directed to cellulose ether compositions for film-forming coating applications. A coating composition is provided which contains an aqueous solution of either a very low viscosity cellulose ether or a low-hydroxypropyl cellulose ether, the coating composition having low color. The low viscosity of the cellulose ether component enables the coating composition to contain a high concentration of cellulose ether. Provision of these high concentration cellulose ether coating solutions improves production efficiency by reducing the time required to coat a substrate.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: True L. Rogers, Debora L. Holbrook, Karen A. Coppens, Robert L. Schmitt
  • Patent number: 8920553
    Abstract: The present disclosure is directed to cellulose ether compositions for film-forming coating applications. A coating composition is provided which contains an aqueous solution of either a very low viscosity cellulose ether or a low-hydroxypropyl cellulose ether, the coating composition having low color, The low viscosity of the cellulose ether component enables the coating composition to contain a high concentration of cellulose ether. Provision of these high concentration cellulose ether coating solutions improves production efficiency by reducing the time required to coat a substrate.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: December 30, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: True L. Rogers, Debora L. Holbrook, Karen A. Coppens, Robert L. Schmitt
  • Publication number: 20140271833
    Abstract: An injection-molded shell of a dosage form of good quality is producible by a) providing a composition comprising i) from 25 to 90 weight percent of ethylcellulose, ii) from 7.5 to 60 weight percent of a polysaccharide or polysaccharide derivative being different from ethylcellulose, and iii) from 2.5 to 50 weight percent of at least one component being different from polysaccharides and polysaccharide derivatives, based on the total weight of the composition, with the proviso that the composition comprises zero or not more than 10 weight percent of gelatin and zero or not more than 10 weight percent of a polymer comprising homo- or copolymerized acrylic acid, homo- or copolymerized methacrylic acid, a homo- or copolymerized acrylate or a homo- or copolymerized methacrylate, and b) subjecting the composition to shearing and heat to plasticize the composition and injection-molding the plasticized composition into a three-dimensional shell of a dosage form.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Michael D. Read, Karen A. Coppens, Mark J. Hall, Jin Zhao
  • Publication number: 20110236443
    Abstract: High amounts of active ingredients, such as drugs, can be incorporated into a multilayer melt-extruded film which comprises i) one or more active ingredient layers produced from a melt-extruded polymer composition comprising a) a water-soluble polymer and b) an active ingredient; and ii) one or more removable protective layers which leave the active ingredient layer(s) substantially intact upon removal of the protective layer(s).
    Type: Application
    Filed: February 25, 2011
    Publication date: September 29, 2011
    Inventors: Mark J. Hall, Karen A. Coppens, Michael D. Read, Uma Shrestha
  • Publication number: 20100275814
    Abstract: The present disclosure Is directed to cellulose ether compositions for film-forming coating applications. A coating composition is provided which contains an aqueous solution of either a very low viscosity cellulose ether or a low-hydroxypropyl cellulose ether, the coating composition having low color, The low viscosity of the cellulose ether component enables the coating composition to contain a high concentration of cellulose ether. Provision of these high concentration cellulose ether coating solutions improves production efficiency by reducing the time required to coat a substrate.
    Type: Application
    Filed: November 5, 2008
    Publication date: November 4, 2010
    Inventors: True L. Rogers, Debora L. Holbrook, Karen A. Coppens, Robert L. Schmitt
  • Publication number: 20100249013
    Abstract: Described are encapsulated time-release cleaning agents, comprising active agents that, when combined with an aqueous phase, have slight delay release, moderate delay release, and/or extended delay release. The invention also relates to the manufacture and use of such compositions.
    Type: Application
    Filed: August 26, 2008
    Publication date: September 30, 2010
    Inventors: Molly I-Chin Busby, Karen A. Coppens, Mark J. Hall
  • Publication number: 20090130058
    Abstract: A biologically active composition comprising an ethylcellulose, a polyethylene oxide and a biologically active ingredient, wherein the amount of ethylcellulose is at least about (15) percent, based on the total weight of the composition, can be used in melt-extrusion processes to produce pharmaceutical dosage forms.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 21, 2009
    Inventors: Mark J. Hall, Karen A. Coppens, Pamela S. Larsen, Shawn A. Mitchell, Michael D. Read, Uma Shrestha