Patents by Inventor Henning Hoffmann

Henning Hoffmann 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: 20250235390
    Abstract: The invention relates to a composition, in particular to a swellable composition, for use in a process of treating a disorder in the oral cavity of a mammal. The composition comprises a guanidinyl-containing polymer, carrageenan, filler and a paste-forming component. During the process an active substance for treating the disorder is applied to and absorbed by the composition. The composition can be used for various purposes, including treating calculus, treating periodontitis, treating tissue lesions and for endodontic treatments.
    Type: Application
    Filed: October 14, 2022
    Publication date: July 24, 2025
    Inventors: Henning Hoffmann, Rüediger Hampe, Peter Osswald, Joachim Zech, Viola Baumgärtel, Marc Peuker
  • Patent number: 12296032
    Abstract: The invention relates to a process of taking a dental impression, the process comprising the steps of providing a radiation-curable dental impression composition, placing the radiation-curable dental impression composition in contact with dental tissue, applying radiation to the radiation-curable dental impression composition, letting the radiation-curable dental impression composition cure, removing the cured dental impression composition from the dental tissue, the radiation-curable dental impression composition comprising mercapto-functional polyorganosiloxane(s), VQM resin(s), photo-initiator(s) for initiating a curing reaction between, and optionally filler(s). The invention also relates to a cured dental impression obtained by radiation curing the radiation-curable dental impression composition, a kit of parts containing the radiation-curable dental impression composition and a dental impression tray filled with the radiation-curable dental impression composition.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 13, 2025
    Assignee: Solventum Intellectual Properties Company
    Inventors: Henning Hoffmann, Peter U. Osswald, Peter Bissinger, Joachim W. Zech
  • Publication number: 20250082440
    Abstract: The invention relates to a composition for isolating tissue, the composition comprising a radiation curable component A1, preferably being present in an amount of at least 40 wt. % with respect to the composition, the radiation curable component A1 comprising a polyether polyol spacer group having a molecular weight (Mw) of 1,000 to 20,000 g/mol, and at least two (meth)acrylate moieties, photo-initiator, guanidyl containing polymer, carrageenan, optionally softener, optionally dye, optionally filler, optionally additives.
    Type: Application
    Filed: July 18, 2022
    Publication date: March 13, 2025
    Inventors: Henning Hoffmann, Peter Osswald, Ruediger Hampe
  • Publication number: 20240285476
    Abstract: The invention relates to a dental composition provided as a kit of parts comprising a base paste and an initiator paste, the base paste comprising, a cationically curable pre-polymer comprising a backbone and at least two aziridine moieties, filler, the initiator paste comprising an initiator being able to start the hardening of the polyether pre-polymer, filler, optionally diluent, the base paste or the initiator paste or the base paste and the initiator paste comprising in addition an isosorbide component. The invention also relates to a process of taking an impression of dental tissue.
    Type: Application
    Filed: May 9, 2022
    Publication date: August 29, 2024
    Inventors: Joachim W. Zech, Peter U. Osswald, Peter Bissinger, Markus Mikulla, Bernd Kuppermann, Hendrik Grupp, Henning Hoffmann, Andrea Hailand
  • Patent number: 12071544
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D dissolved in mercapto-functional polyorganosiloxane(s) as Component E, the mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, wherein Component D is dissolved in Component E before Component D is combined with the other components of the radiation-curable silicone composition.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: August 27, 2024
    Assignee: Solventum Intellectual Properties Company
    Inventors: Henning Hoffmann, Peter U. Osswald
  • Publication number: 20240024205
    Abstract: The invention relates to a dental retraction composition comprising guanidinyl-containing polymer, carrageenan, filler, paste-forming component, organic acid having a molecular weight of 80 to 250 g/mol, a pks value of 2 to 5, 1 to 3 carboxylic acid moieties, and being soluble in polyethylene glycol with a molecular weight of 400 g/mol, the dental retraction composition not containing water in an amount of more than 5 wt. %, and not containing aluminium chloride in an amount of more than 0.5 wt. %, wt. % with respect to the weight of the dental retraction composition. The dental retraction composition is for use in a process for use in a process of retracting dental tissue in combination with coagulating blood. The invention also relates to a delivery device comprising the dental retraction composition and a kit of parts comprising the delivery device, an applier for the delivery device, optionally a dental impression material, and optionally a retraction cap.
    Type: Application
    Filed: December 1, 2021
    Publication date: January 25, 2024
    Inventors: Peter U. Osswald, Henning Hoffmann, Paul J. Homnick, Joachim Zech
  • Patent number: 11766386
    Abstract: The invention relates to a medical composition comprising guanidinyl-containing polymer(s) and polyanionic polymer(s). The medical composition is useful for absorbing water-containing fluids and can be used as dental retraction composition or as part of a medical treatment device.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 26, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Henning Hoffmann, Peter U. Osswald
  • Patent number: 11684553
    Abstract: The invention relates to a curable composition for dental retraction comprising a resin matrix comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups as component A1, at least one organohydrogenpolysiloxane as component A2, optionally at least one vinyl functional QM silicone component as component A3, at least one alkylsiloxane having at least one carbinol, silanol, or alkoxy moiety as component B, optionally surfactant(s) as component E, optionally additive(s) as component F, a filler system comprising filler(s) as component D, a catalyst system comprising addition cure catalyst component C-A suitable to cure components A1 and A2, condensation cure catalyst component C-B suitable to cure component B, the curable composition being provided as a kit of part comprising a Catalyst Part I and a Base Part II the Catalyst Part I comprising components C-A, C-B, A1, the Base Part II comprising components A2, A1, B, wherein each of components D, E and F and A3, if present, can be
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: June 27, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Henning Hoffmann, Peter Osswald, Joachim Zech
  • Patent number: 11591438
    Abstract: The invention relates to a process of processing a radiation-curable composition with an additive-manufacturing technique comprising a radiation-curing step, the radiation-curable composition comprising mercapto-functional Component A comprising at least three mercapto moieties, crosslinker Component B with at least three vinyl or allyl moieties, photo-initiator(s) Component C for initiating a curing reaction between Component A and Component B, wherein the radiation-curable composition does not comprise urethane (meth)acrylate oligomers in an amount of more than 4 wt. % with respect to the whole composition. 3-dim articles which can be produced are typically transparent and have adequate mechanical properties. The radiation-curable composition is in particular useful for producing clear-tray aligners for dental and orthodontic purposes.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: February 28, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Henning Hoffmann, Peter U. Osswald, Joachim W. Zech
  • Publication number: 20220226201
    Abstract: The invention relates to a process of taking a dental impression, the process comprising the steps of providing a radiation-curable dental impression composition, placing the radiation-curable dental impression composition in contact with dental tissue, applying radiation to the radiation-curable dental impression composition, letting the radiation-curable dental impression composition cure, removing the cured dental impression composition from the dental tissue, the radiation-curable dental impression composition comprising mercapto-functional polyorganosiloxane(s), VQM resin(s), photo-initiator(s) for initiating a curing reaction between, and optionally filler(s). The invention also relates to a cured dental impression obtained by radiation curing the radiation-curable dental impression composition, a kit of parts containing the radiation-curable dental impression composition and a dental impression tray filled with the radiation-curable dental impression composition.
    Type: Application
    Filed: June 9, 2020
    Publication date: July 21, 2022
    Inventors: Henning Hoffmann, Peter U. Osswald, Peter Bissinger, Joachim W. Zech
  • Publication number: 20220112377
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D dissolved in mercapto-functional polyorganosiloxane(s) as Component E, the mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, wherein Component D is dissolved in Component E before Component D is combined with the other components of the radiation-curable silicone composition.
    Type: Application
    Filed: February 17, 2020
    Publication date: April 14, 2022
    Inventors: Henning Hoffmann, Peter U. Osswald
  • Patent number: 11267968
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D, and at least one of the following as Component E: solvent being able to dissolve the dye(s); and/or surfactant(s) being able to dissolve the dye(s).
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 8, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Peter Osswald, Henning Hoffmann, Hendrick Grupp, Joachim Zech, Daniel Oberpertinger, Malte Korten, Gallus Schechner
  • Patent number: 11123267
    Abstract: The invention relates to a dental composition for use as a dental retraction material comprising filler(s), paste forming liquid(s) and guanidinyl-containing polymer(s). The dental composition is typically stored in a capsule with a thin nozzle enabling the delivery of the material in the sulcus of a tooth.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 21, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Peter U. Osswald, Henning Hoffmann, Peter Bissinger, Joachim W. Zech, George W. Griesgraber
  • Publication number: 20210214504
    Abstract: The invention relates to a process of processing a radiation-curable composition with an additive-manufacturing technique comprising a radiation-curing step, the radiation-curable composition comprising mercapto-functional Component A comprising at least three mercapto moieties, crosslinker Component B with at least three vinyl or allyl moieties, photo-initiator(s) Component C for initiating a curing reaction between Component A and Component B, wherein the radiation-curable composition does not comprise urethane (meth)acrylate oligomers in an amount of more than 4 wt. % with respect to the whole composition. 3-dim articles which can be produced are typically transparent and have adequate mechanical properties. The radiation-curable composition is in particular useful for producing clear-tray aligners for dental and orthodontic purposes.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 15, 2021
    Inventors: Henning Hoffmann, Peter U. Osswald, Joachim W. Zech
  • Publication number: 20210214556
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D, and at least one of the following as Component E: solvent being able to dissolve the dye(s); and/or surfactant(s) being able to dissolve the dye(s).
    Type: Application
    Filed: January 29, 2019
    Publication date: July 15, 2021
    Inventors: Peter Osswald, Henning Hoffmann, Hendrick Grupp, Joachim Zech, Daniel Oberpertinger, Malte Korten, Gallus Schechner
  • Patent number: 10682290
    Abstract: The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: June 16, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Henning Hoffmann, Peter U. Osswald, Joachim W. Zech, Andreas R. Maurer
  • Publication number: 20190358130
    Abstract: The invention relates to a curable composition for dental retraction comprising a resin matrix comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups as component A1, at least one organohydrogenpolysiloxane as component A2, optionally at least one vinyl functional QM silicone component as component A3, at least one alkylsiloxane having at least one carbinol, silanol, or alkoxy moiety as component B, optionally surfactant(s) as component E, optionally additive(s) as component F, a filler system comprising filler(s) as component D, a catalyst system comprising addition cure catalyst component C-A suitable to cure components A1 and A2, condensation cure catalyst component C-B suitable to cure component B, the curable composition being provided as a kit of part comprising a Catalyst Part I and a Base Part II the Catalyst Part I comprising components C-A, C-B, A1, the Base Part II comprising components A2, A1, B, wherein each of components D, E and F and A3, if present, can be
    Type: Application
    Filed: January 15, 2018
    Publication date: November 28, 2019
    Inventors: Henning Hoffmann, Peter Osswald, Joachim Zech
  • Publication number: 20190282453
    Abstract: The invention relates to a medical composition comprising guanidinyl-containing polymer(s) and polyanionic polymer(s). The medical composition is useful for absorbing water-containing fluids and can be used as dental retraction composition or as part of a medical treatment device.
    Type: Application
    Filed: November 6, 2017
    Publication date: September 19, 2019
    Inventors: Henning Hoffmann, Peter U. Osswald
  • Publication number: 20190274929
    Abstract: The invention relates to a dental composition for use as a dental retraction material comprising filler(s), paste forming liquid(s) and guanidinyl-containing polymer(s). The dental composition is typically stored in a capsule with a thin nozzle enabling the delivery of the material in the sulcus of a tooth.
    Type: Application
    Filed: November 6, 2017
    Publication date: September 12, 2019
    Inventors: Peter U. Osswald, Henning Hoffmann, Peter Bissinger, Joachim W. Zech, George W. Griesgraber
  • Publication number: 20180125764
    Abstract: The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups.
    Type: Application
    Filed: May 23, 2016
    Publication date: May 10, 2018
    Inventors: Henning Hoffmann, Peter U. Osswald, Joachim W. Zech, Andreas R. Maurer