Patents by Inventor Mårten Rooth

Mårten Rooth 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).

  • Publication number: 20230157968
    Abstract: There is provided a pharmaceutical or veterinary formulation comprising: (a) a plurality of particles having a weight-, number-, or volume-based mean diameter that is between amount 10 nm and about 700 ?m, which particles comprise solid cores coated with zinc oxide; suspended in (b) an oleaginous carrier system comprising a pharmaceutically-acceptable or veterinarily-acceptable oil, which zinc oxide coated particles comprise: (1) solid cores comprising a biologically-active agent; (2) one or more discrete layers surrounding said cores, said one or more layers each comprising at least one separate zinc oxide coating. Said zinc oxide coated particles are preferably synthesized via a gas phase coating technique, such as atomic layer deposition. When the cores comprise biologically-active agent, and the particles are suspended in an oleaginous carrier system, the formulation may provide for the delayed or sustained release of said active agent without a burst effect.
    Type: Application
    Filed: April 16, 2021
    Publication date: May 25, 2023
    Inventors: Anders JOHANSSON, Mårten ROOTH, Joel HELLRUP
  • Publication number: 20230009472
    Abstract: There is provided a composition comprising a plurality of particles of a weight-, number-, or volume-, based mean diameter that is between amount 10 nm and about 700 µm, which particles are made up of: (a) a solid core, which solid core preferably comprises a biologically active agent; (b) one or more discrete layers surrounding said core, said one or more layer s each comprising at least one separate coating material; and (c) a final overcoating layer of a coating material, which overcoating layer surrounds, encloses and/or encapsulates said core and said previously-applied layers of coating material, and which final layer is of a thickness that is less than said previously-applied layers. Said layers (b) and (c) are preferably applied by way of a gas phase coating technique, such as atomic layer deposition. When the cores comprise biologically active agent, the compositions may provide for the delayed or sustained release of said active agent without a burst effect.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 12, 2023
    Inventors: Anders JOHANSSON, Mårten ROOTH, Joel HELLRUP
  • Publication number: 20220307132
    Abstract: A reactor for forming fully coated particles having a solid core, the reactor comprises a reactor vessel which is configured to receive particles, and a gas phase coating mechanism that is configured to selectively introduce pulses of gas phase materials that form a coating on the particles. The reactor also includes a sieve (16) that is located within the reactor vessel, and a forcing means that is configured to force the particles through the sieve (16) in use. The sieve is configured to deagglomerate any particle aggregates formed in the reactor vessel upon forcing of the particles by the forcing means through the sieve.
    Type: Application
    Filed: December 8, 2021
    Publication date: September 29, 2022
    Applicant: Nanexa AB
    Inventors: Anders JOHANSSON, Mårten ROOTH, Joel HELLRUP
  • Patent number: 11214865
    Abstract: A reactor for forming fully coated particles having a solid core, the reactor comprises a reactor vessel which is configured to receive particles, and a gas phase coating mechanism that is configured to selectively introduce pulses of gas phase materials that form a coating on the particles. The reactor also includes a sieve (16) that is located within the reactor vessel, and a forcing means that is configured to force the particles through the sieve (16) in use. The sieve is configured to deagglomerate any particle aggregates formed in the reactor vessel upon forcing of the particles by the forcing means through the sieve.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: January 4, 2022
    Assignee: Nanexa AB
    Inventors: Anders Johansson, Mårten Rooth, Joel Hellrup
  • Publication number: 20210169815
    Abstract: There is provided a process for the preparation of composition in the form of a plurality of particles having a weight-, number-, and/or volume-based mean diameter that is between amount 10 nm and about 700 ?m, which particles comprise: (a) solid cores, preferably comprising a biologically active agent; and (b) two or more sequentially applied, discrete layers, each of which comprises at least one separately applied coating material, and which two or more layers together surround, enclose and/or encapsulate said cores, which process comprises the sequential steps of: (1) applying an initial layer of at least one coating material to said solid cores by way of a gas phase deposition technique; (2) discharging the coated particles from the gas phase deposition reactor and subjecting the coated particles to agitation to disaggregate particle aggregates formed during step (1) by way of mechanical sieving technique; (3) reintroducing the disaggregated, coated particles from step (2) into the gas phase depositi
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Anders Johansson, Joel Hellrup, Mårten Rooth
  • Publication number: 20200407846
    Abstract: A reactor for forming fully coated particles having a solid core, the reactor comprises a reactor vessel which is configured to receive particles, and a gas phase coating mechanism that is configured to selectively introduce pulses of gas phase materials that form a coating on the particles. The reactor also includes a sieve (16) that is located within the reactor vessel, and a forcing means that is configured to force the particles through the sieve (16) in use. The sieve is configured to deagglomerate any particle aggregates formed in the reactor vessel upon forcing of the particles by the forcing means through the sieve.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 31, 2020
    Applicant: Nanexa AB
    Inventors: Anders JOHANSSON, Mårten ROOTH, Joel HELLRUP
  • Publication number: 20200017966
    Abstract: A medical device intended for contact with living tissue comprises a substrate having a surface, which surface comprises a layer comprising gallium oxide. A layer comprising a gallium oxide has been shown to inhibit biofilm formation on the surface of the medical device, which may reduce the risk for infection e.g. around a dental implant. A method of producing the medical device comprises: a) providing a substrate having a surface; and applying a gallium compound onto said surface to form a layer, preferably using a thin film deposition technique.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Anna ARVIDSSON, Anders JOHANSSON, Mårten ROOTH
  • Publication number: 20160089481
    Abstract: A medical device intended for contact with living tissue comprises a substrate having a surface, which surface comprises a layer comprising gallium oxide. A layer comprising a gallium oxide has been shown to inhibit biofilm formation on the surface of the medical device, which may reduce the risk for infection e.g. around a dental implant. A method of producing the medical device comprises: a) providing a substrate having a surface; and applying a gallium compound onto said surface to form a layer, preferably using a thin film deposition technique.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: Anna ARVIDSSON, Anders JOHANSSON, Mårten ROOTH
  • Publication number: 20100129623
    Abstract: Briefly, the present invention comprises a method of manufacturing a sensor surface structure suitable for but not limited to surface enhanced Raman spectroscopy. The method comprises providing (S1) a nano-structured array template, depositing (S2) a metal oxide on the template, preferably using atomic layer deposition (ALD), depositing (S4) metal nanoparticles on the metal oxide layer, either by electroless deposition or by ALD.
    Type: Application
    Filed: October 3, 2007
    Publication date: May 27, 2010
    Inventors: Anders Johansson, Mårten Rooth, Mats Boman, Anders Hårsta, Jan-Otto Carlsson