Patents by Inventor Antti Yli-Urpo

Antti Yli-Urpo 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: 20090176192
    Abstract: A matrix band which includes fibers and a matrix, at least a portion of the matrix being at least partially uncured. The invention further relates to a dental restoration kit, a prepreg and the use of the matrix.
    Type: Application
    Filed: July 3, 2008
    Publication date: July 9, 2009
    Inventors: Pekka VALLITTU, Lippo Lassila, Antti Yli-Urpo, Arzu Tezvergil
  • Patent number: 7527804
    Abstract: A method for improving soft tissue attachment which includes the steps of coating a surface of a material, to which surface soft tissue is to be attached, with a coating rich in TiO2 and/or SiO2, and applying the coating where soft tissue attachment is desired. An implant in which a surface or surfaces of the implant intended to be attached to soft tissue are coated with a porous coating rich in TiO2 and/or SiO2, and the use of a porous surface coating rich in TiO2, SiO2, or TiO2 and SiO2, for the manufacture of an implant for soft tissue attachment are also disclosed.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: May 5, 2009
    Assignee: Vivoxid Oy
    Inventors: Timo Närhi, Hannu Paldan, Antti Yli-Urpo, Timo Peltola, Mika Jokinen, Risto-Pekka Happonen
  • Patent number: 7435764
    Abstract: The invention relates to a prepreg comprising a base part, said base part comprising fibers and a matrix, said matrix being at least partially uncured. The prepreg is characterized in that it further comprises a surface part consisting essentially of bioactive filler material, said bioactive filler material being in particle form and at least partially and at most partially embedded in said base part. The invention also relates to a composite obtainable by curing said prepreg. The invention further relates to a mineralizing sheet for treatment of hypersensitive teeth and to the use of said prepreg and composite.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 14, 2008
    Assignee: Stick Tech Oy
    Inventors: Pekka Vallittu, Antti Yli-Urpo, Lippo Lassila, Timo Närhi, Tuomas Waltimo
  • Patent number: 7354969
    Abstract: The invention relates to polymerizable multifunctional polymer composites and compositions, which are suitable for dental and medical applications, such as dental prostheses, filling materials, implants and the like. It also relates to a method for the manufacture of such polymerizable multifunctional polymer composites and compositions, and to the use of the multifunctional polymer composites and compositions in dental and medical applications. A multifunctional polymer composite or composition is manufactured from 30-99 wt % of a monomer mixture containing 30-99 wt % of a dendrimer or a combination of dendrimers and 1-70 wt % of a reactive solvent or a combination of reactive solvents, and 0.1-70 wt % of a nanofiller or a combination of nanofillers.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 8, 2008
    Assignee: Stick Tech OY
    Inventors: Pekka Vallittu, Lippo Lassila, Mikael Skrifvars, Eeva Viljanen, Antti Yli-Urpo
  • Publication number: 20080065123
    Abstract: The invention relates to a multilayer material comprising at least two layers of web and at least one layer of particles, said particles being arranged between said at least two layers of web. According to the invention at least a part of said multilayer material is made of bioactive glass and said particles are sol-gel derived silica particles. The invention also relates to different uses of said multilayer material.
    Type: Application
    Filed: June 29, 2005
    Publication date: March 13, 2008
    Inventors: Antti Yli-Urpo, Heimo Ylanen, Joni Korventausta, Hanna Arstila, Timo Narhi, Mikko Hupa, Pekka Vallittu
  • Patent number: 7326422
    Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: February 5, 2008
    Assignee: DelSiTech Oy
    Inventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
  • Patent number: 7235290
    Abstract: A prepreg containing fibers and a curable matrix, the prepreg having a core and a surface part encasing the core, where the matrix of the core and of the surface part are made of the same material and where the proportion of the matrix to the fibers is higher in the core than in the surface part. A composite obtainable from the prepreg as well as the use of the composite or prepreg are also disclosed.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 26, 2007
    Assignee: Stick Tech Oy
    Inventors: Pekka Vallittu, Lippo Lassila, Antti Yli-Urpo
  • Publication number: 20070054244
    Abstract: The invention relates to a prepreg comprising a base part, said base part comprising fibers and a matrix, said matrix being at least partially uncured. The prepreg is characterized in that it further comprises a surface part consisting essentially of bioactive filler material, said bioactive filler material being in particle form and at least partially and at most partially embedded in said base part. The invention also relates to a composite obtainable by curing said prepreg. The invention further relates to a mineralizing sheet for treatment of hypersensitive teeth and to the use of said prepreg and composite.
    Type: Application
    Filed: May 21, 2004
    Publication date: March 8, 2007
    Inventors: Pekka Vallittu, Antti Yli-Urpo, Lippo Lassila, Timo Narhi, Tuomas Waltimo
  • Publication number: 20060275734
    Abstract: The invention relates to a matrix band that is characterized in that it comprises fibers and a matrix, at least a portion of said matrix being at least partially uncured. The invention further relates to a dental restoration kit, a prepreg and the use of said matrix.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 7, 2006
    Inventors: Pekka Vallittu, Lippo Lassila, Antti Yli-Urpo, Arzu Tezvergil
  • Patent number: 7112339
    Abstract: A composition for controlled release of a biologically active agent from a carrier. The biologically active agent is heparin or a related biologically active acidic polysaccharide and the carrier is a sol-gel derived silica xerogel. The xerogel is derived from a tetraalkoxysilane such as tetrethoxysilane (TEOS) and part of the tetraalkoxysilane is replaced by an organomodified alkoxysilane, preferably an akylsubsitituted alkoxysilane. The invention also includes a method for the preparation of this composition.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: September 26, 2006
    Assignee: DelSiTech Oy
    Inventors: Manja Ahola, Eija Säilynoja, Jukka Salonen, Risto Penttinen, Antti Yli-Urpo
  • Publication number: 20060166807
    Abstract: A bioactive glass composition which contains SiO2, Na2O, CaO, K2O, MgO, P2O5 and B2O3. The amount of SiO2 is 51-56 wt-% of the starting oxides, Na2O is 7-9 wt-% of the starting oxides, CaO is 21-23 wt-% of the starting oxides, K2O is 10-12 wt-% of the starting oxides, MgO is 1-4 wt-% of the starting oxides, P2O5 is 0.5-1.5 wt-% of the starting oxides, B2O3 is 0-1 wt-% of the starting oxides, provided that the total amount of Na2O and K2O is 17-20 wt-% of the starting oxides. Also disclosed is the manufacture and use of the bioactive glass composition.
    Type: Application
    Filed: October 2, 2003
    Publication date: July 27, 2006
    Applicant: Vivoxid Oy
    Inventors: Heimo Ylanen, Antti Yli-Urpo, Mikko Hupa
  • Patent number: 6991802
    Abstract: A material for medical use in humans and/or animals bearing a biologically active agent, the material being multilayered, as well as a device of this material and a method to produce it. The material includes a core material, where the core material is formed into a body, optionally having the shape of a finished device; two or more layers of coating material of which the first layer has been applied onto the core material and additional layers have been applied onto the coating material of a preceding layer; and where at least one of the layers includes the biologically active agent. A feature of this invention is that the coating material is a biopolymer, a sol-gel produced silica gel or a biologically active molecule.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: January 31, 2006
    Assignee: DelSiTech Oy
    Inventors: Manja Ahola, Risto Penttinen, Anders Södergård, Antti Yli-Urpo
  • Patent number: 6884518
    Abstract: A material suitable for the reconstruction of an individual's tissue, particularly supportive tissue such as bone tissue, insertable into the tissue. The material is characterized by being composed of wood heat-treated within the temperature range of 100-220° C. in the presence of water vapor. The invention also relates the use of the wood.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: April 26, 2005
    Inventors: Allan Aho, Antti Yli-Urpo, Pertti Viitaniemi
  • Publication number: 20040197414
    Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 7, 2004
    Inventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
  • Publication number: 20040166304
    Abstract: A prepreg containing fibers and a curable matrix, the prepreg having a core and a surface part encasing the core, where the matrix of the core and of the surface part are made of the same material and where the proportion of the matrix to the fibers is higher in the core than in the surface part. A composite obtainable from the prepreg as well as the use of the composite or prepreg are also disclosed.
    Type: Application
    Filed: December 5, 2003
    Publication date: August 26, 2004
    Inventors: Pekka Vallittu, Lippo Lassila, Antti Yli-Urpo
  • Patent number: 6764690
    Abstract: Controllably dissolvable silica-xerogels prepared via sol-gel process and their use. A delivery device including controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. Pharmaceutical preparations including this device. Medical devices for orthopedic and surgical purposes which contain controllably dissolvable silica-xerogels, which may further include a biologically active agent.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: July 20, 2004
    Assignee: DelSiTech Oy
    Inventors: Manja Ahola, Heidi Fagerholm, Ilkka Kangasniemi, Juha Kiesvaara, Pirjo Kortesuo, Kauko Kurkela, Niilo Saarinen, Antti Yli-Urpo
  • Publication number: 20040132603
    Abstract: The invention relates to a method for improving soft tissue attachment comprising the steps of coating a surface of a material, to which surface soft tissue is to be attached, with a coating rich in TiO2 and/or SiO2, and applying said coating wherein soft tissue attachment is desired. The invention further relates to an implant wherein a surface or surfaces of said implant intended to be attached to soft tissue are coated with a porous coating rich in TiO2 and/or SiO2. The invention also relates to the use of a porous surface coating rich in TiO2, SiO2, or TiO2 and SiO2, for the manufacture of an implant for soft tissue attachment to said coating.
    Type: Application
    Filed: October 27, 2003
    Publication date: July 8, 2004
    Inventors: Timo Narhi, Hannu Paldan, Antti Yli-Urpo, Timo Peltola, Mika Jokinen, Risto-Pekka Happonen
  • Publication number: 20040121451
    Abstract: A method for at least partially treating biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials, the sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials having OH-groups and being at least partially amorphous, the treatment being performed with a localised electromagnetic and/or acoustic energy. A method for coating a device with biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials and a method for modifying the biological activity of biologically active sols, gels, mixtures or composites of sols and gels, and/or sol-gel derived materials are also disclosed. Both methods include treatment with localised electromagnetic and/or acoustic energy. Also disclosed is the use of the method to fabricate different devices and to attach at least two devices.
    Type: Application
    Filed: February 19, 2004
    Publication date: June 24, 2004
    Inventors: Niko Moritz, Ilkka Kangasniemi, Antti Yli-Urpo, Timo Peltola, Mika Jokinen
  • Publication number: 20040115240
    Abstract: The invention relates to a composite for attaching, growing and/or repairing of living tissue in mammals. The composite comprises a non-expandable matrix polymer and a water-expandable porosity agent. The invention also relates to the use of said composite.
    Type: Application
    Filed: February 9, 2004
    Publication date: June 17, 2004
    Inventors: Timo Narhi, Antti Yli-Urpo, Pekka Vallittu, Marju Vakiparta, Teemu Tirri, Mervi Puska, Lippo Lassila, Tapani Lastumaki, Allan Ho
  • Publication number: 20040086661
    Abstract: The object of the invention is to provide a method for sintering bioactive glass or bioactive glass composite. The method according to the invention is characterised in that the sintering is performed with a localised electromagnetic and/or acoustic energy. Other objects of the invention are a method for coating a device with bioactive glass or bioactive glass composite and a method for attaching at least two devices. All these methods use sintering with localised electromagnetic and/or acoustic energy.
    Type: Application
    Filed: September 16, 2003
    Publication date: May 6, 2004
    Inventors: Antti Yli-Urpo, Heimo Ylnen, Niko Moritz, Hanni Ato, Mikko Hupa