Patents by Inventor Håkan Engqvist

Håkan Engqvist 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: 9622972
    Abstract: There is provided a sustained-release pharmaceutical composition comprising a solid, continuous network comprising an excipient with a high mechanical strength, which network also comprises pores, within which pores is interspersed a mixture of an active ingredient and a film-forming agent, characterized in that said pores are formed during the production of the composition. Compositions of the invention find particularly utility as abuse-resistant formulations comprising opioid analgesics that may be employed in the treatment of chronic pain.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: April 18, 2017
    Assignee: Emplicure AB
    Inventors: Susanne Bredenberg, Anna Dahlgren, Anders Sågström, Håkan Engqvist
  • Publication number: 20170072095
    Abstract: Non-aqueous, hydraulic cement-forming compositions comprise a non-aqueous mixture of (a) a non-hydrated powder composition comprising calcium aluminate powder, and (b) non-aqueous water-miscible liquid. Hardened cements are formed from such hydraulic cement-forming compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement-forming compositions.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: Håkan Engqvist, Jonas Åberg
  • Patent number: 9540280
    Abstract: Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of (a) a non-hydrated powder composition comprising calcium silicate powder or calcium aluminate powder, and (b) non-aqueous water-miscible liquid. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 10, 2017
    Assignee: OSSDSIGN AB
    Inventors: Håkan Engqvist, Jonas Åberg
  • Publication number: 20160354517
    Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapour deposition.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 8, 2016
    Inventors: Maria Pettersson, Håkan Engqvist, Johanna André, Lars Hultman
  • Patent number: 9445900
    Abstract: An implant comprises a plurality of discrete biocompatible molded cement mosaic plates of maximum width w and thickness d connected by wire arms molded into and extending substantially laterally from the mosaic plates. Neighboring mosaic plates are separated by a gap of width t, and at least some of the mosaic plates have a hexagon shape.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 20, 2016
    Assignee: OssDsign AB
    Inventors: Håkan Engqvist, Thomas Engstrand, Jonas Åberg, Jan Bohlin
  • Patent number: 9393348
    Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapor deposition.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 19, 2016
    Assignee: IHI Ionbond AG
    Inventors: Maria Pettersson, Håkan Engqvist, Johanna Olofsson, Lars Hultman
  • Publication number: 20160051453
    Abstract: The object is the invention is to provide hollow, and preferably porous, spherical CaP particles preferably without the use of strontium ions. This is achieved by a method comprising the steps: a) Providing an aqueous buffer solution of purified water having a pH of 6-10 comprising 20-200 mM sodium ions, 0.1-10 mM potassium ions and 1-10 mM phosphate ions, and wherein the buffer solution is essentially free from strontium; b) adding calcium ions in the range of from 0.1 to less than 2 mM, and magnesium ions in the range of 0.01-5 mM to the buffer solution and forming a mixture; c) heating the mixture of step b) at 60-200° C. for at least 5 minutes d) isolating the formed particles; and e) optionally washing the isolated particles using a suitable solvent. The particles comprise 40-70 weight % of calcium, 20-40 weight % of phosphate and 1-25 weight % magnesium. The Ca/P weight ratio is in the range of 1.10 to 1.90 and more than 80 % of the particles have a particle size between 200 to 1500 nm.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 25, 2016
    Applicant: PSILOX ab
    Inventors: Wei XIA, Håkan ENGQVIST
  • Publication number: 20150374497
    Abstract: A mosaic implant conformable to a curved surface, comprising first and second implant sections coupled along a beam portion extending across a length of the implant, each of the implant sections having—a plurality of biocompatible mosaic plates, and—a plurality of wires which interconnect the plates with one another. The mosaic implant is configured to be deformable such that at least a portion of the mosaic implant is conformable to a curved surface, with the beam portion providing structural support which resists inward deformation of the curved portion of the implant. A kit for forming a mosaic implant is also provided, along with a method for correcting a bone defect in a patient.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 31, 2015
    Inventors: Thomas Engstrand, Jan Bohlin, Jonas Åberg, Håkan Engqvist
  • Patent number: 9220597
    Abstract: A mosaic implant conformable to a curved surface, comprising first and second implant sections coupled along a beam portion extending across a length of the implant, each of the implant sections having a plurality of biocompatible mosaic plates, and a plurality of wires which interconnect the plates with one another. The mosaic implant is configured to be deformable such that at least a portion of the mosaic implant is conformable to a curved surface, with the beam portion providing structural support which resists inward deformation of the curved portion of the implant. A kit for forming a mosaic implant is also provided, along with a method for correcting a bone defect in a patient.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: December 29, 2015
    Assignee: OssDsign AB
    Inventors: Thomas Engstrand, Jan Bohlin, Jonas Åberg, Håkan Engqvist
  • Patent number: 9206080
    Abstract: Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of a powder composition and a non-aqueous water-miscible liquid. In one embodiment, powder composition is a Brushite or Monetite-forming calcium phosphate powder composition. In another embodiment, the powder composition comprises porous ?-tricalcium phosphate (?-TCP) granules and at least one additional calcium phosphate powder. In another embodiment, the powder composition comprises calcium silicate powder. In a further embodiment, the powder composition comprises calcium aluminate powder. In another embodiment, the powder composition is a cement composition and comprises nanopowders having a grain size of less than 1 micron. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: December 8, 2015
    Assignee: OssDsign AB
    Inventors: Håkan Engqvist, Jonas Åberg
  • Publication number: 20150328368
    Abstract: A calcium phosphate monetite cement-forming composition comprises a monetite-forming calcium-based precursor powder and from 3 to 30 wt %, based on the weight of the precursor powder, of dicalcium pyrophosphate powder. Monetite cements formed form such compositions may be used in implants for correcting bone defects. Methods for bone defect repair employ implants formed from such monetite cements and slow implant resorption and/or improve in vivo bone induction in a patient.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 19, 2015
    Inventors: Jonas Åberg, Thomas Engstrand, Håkan Engqvist
  • Publication number: 20150183687
    Abstract: Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of (a) a non-hydrated powder composition comprising calcium silicate powder or calcium aluminate powder, and (b) non-aqueous water-miscible liquid. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.
    Type: Application
    Filed: March 11, 2015
    Publication date: July 2, 2015
    Inventors: Håkan Engqvist, Jonas Åberg
  • Publication number: 20140324187
    Abstract: An implant comprises a plurality of discrete biocompatible molded cement mosaic plates of maximum width w and thickness d connected by wire arms molded into and extending substantially laterally from the mosaic plates. Neighbouring mosaic plates are separated by a gap of width t, and at least some of the mosaic plates have a hexagon shape.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Håkan Engqvist, Thomas Engstrand, Jonas Åberg, Jan Bohlin
  • Publication number: 20140312517
    Abstract: Refrigerated hydraulic cement compositions comprise a mixture of (a) ?-tricalcium phosphate powder, (b) monocalcium phosphate comprising monocalcium phosphate anhydrous (MCPA), monocalcium phosphate monohydrate (MCPM), or a combination thereof, wherein a 0.1 g/ml saturated aqueous solution of the monocalcium phosphate has a pH less than 3.0, (c) non-aqueous water-miscible liquid, and (d) an aqueous hydrating liquid. The aqueous hydrating liquid is included in an amount of about 1-50 volume percent, based on the combined volume of the non-aqueous water-miscible liquid and the aqueous hydration liquid, and the refrigerated hydraulic cement composition is storage stable for greater than one day, without setting. Methods of forming hardened cements in vivo and/or for forming implants for use in vivo employ the hydraulic cement compositions.
    Type: Application
    Filed: September 10, 2012
    Publication date: October 23, 2014
    Applicant: OSSDSIGN AB
    Inventors: Håkan Engqvist, Jonas Åberg
  • Publication number: 20140277571
    Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapour deposition.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 18, 2014
    Applicant: IHI IONBOND AG
    Inventors: Maria Pettersson, Håkan Engqvist, Johanna Olofsson, Lars Hultman
  • Publication number: 20140228969
    Abstract: A mosaic implant conformable to a curved surface, comprising first and second implant sections coupled along a beam portion extending across a length of the implant, each of the implant sections having a plurality of biocompatible mosaic plates, and a plurality of wires which interconnect the plates with one another. The mosaic implant is configured to be deformable such that at least a portion of the mosaic implant is conformable to a curved surface, with the beam portion providing structural support which resists inward deformation of the curved portion of the implant. A kit for forming a mosaic implant is also provided, along with a method for correcting a bone defect in a patient.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Applicant: OssDsign AB
    Inventors: Thomas Engstrand, Jan Bohlin, Jonas Âberg, Håkan Engqvist
  • Publication number: 20140221303
    Abstract: Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of a powder composition and a non-aqueous water-miscible liquid. In one embodiment, powder composition is a Brushite or Monetite-forming calcium phosphate powder composition. In another embodiment, the powder composition comprises porous ?-tricalcium phosphate (?-TCP) granules and at least one additional calcium phosphate powder. In another embodiment, the powder composition comprises calcium silicate powder. In a further embodiment, the powder composition comprises calcium aluminate powder. In another embodiment, the powder composition is a cement composition and comprises nanopowders having a grain size of less than 1 micron. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: OssDsign AB
    Inventors: Håkan Engqvist, Jonas Åberg
  • Patent number: 8795377
    Abstract: The present invention relates to mosaic implant (15) comprising a plurality of mosaic plates (17) connected by a wire or mesh anchoring arrangement (9). Methods for forming such implants and methods for using said implants for correction of bone and soft tissue defects are described.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: August 5, 2014
    Assignee: OssDsign AB
    Inventors: Håkan Engqvist, Jonas Åberg, Jan Bohlin, Thomas Engstrand
  • Patent number: 8778377
    Abstract: The present invention relates to ceramic precursor material exhibiting injectability and properties that make the material suitable as a carrier material used in drug delivery. According to the invention this is accomplished by selecting a microstructure based on pre-reacted phases and after injection established phases, which contain anti-infective and/or anti-inflammatory drugs. The present invention also relates to a cured ceramic material and a method of manufacturing said cured material. The precursor and the cured ceramic material according to the present invention can suitably be used for filling orthopaedic cavities and other bone voids.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: July 15, 2014
    Assignee: Doxa AB
    Inventors: Leif Hermansson, Håkan Engqvist
  • Publication number: 20140195004
    Abstract: The present invention relates to mosaic implant (15) comprising a plurality of mosaic plates (17) connected by a wire or mesh anchoring arrangement (9). Methods for forming such implants and methods for using said implants for correction of bone and soft tissue defects are described.
    Type: Application
    Filed: March 10, 2011
    Publication date: July 10, 2014
    Inventors: Håkan Engqvist, Thomas Engstrand, Jonas Aberg, Jan Bohlin