Patents by Inventor Olaf Fritz

Olaf Fritz 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: 20220362161
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene and/or a derivative thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 17, 2022
    Inventors: Ulf FRITZ, Olaf FRITZ, Thomas A. GORDY, Ronald WOJCIK, Jaques BLÜMMEL, Alexander KÜLLER
  • Patent number: 11426355
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene and/or a derivative thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: August 30, 2022
    Assignee: Varian Medical Systems, Inc.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jaques Blummel, Alexander Kuller
  • Publication number: 20210299056
    Abstract: Various embodiments are directed to color-coded and size-calibrated polymeric particles comprising an acrylate-based hydrogel core incorporating one or more chromophores of interest, and an outer shell comprising polyphosphazenes of formula I, useful for various therapeutic and/or diagnostic procedures. In various embodiments, the color-coded and size-calibrated polymeric particles can be employed in any particle-mediated procedure, including as embolic agents, dermal fillers, and various implantable devices for a broad range of clinical and cosmetic applications. The incorporation of a particular chromophore formulation that correlates with a pre-determined size specificity for implantable and loadable polymeric particles (“color-coded and size-calibrated”) enables the visual detection and identification of particles exhibiting a particular size of interest, and minimizes the probability of user-introduced or procedural errors.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 30, 2021
    Applicant: Varian Medical Systems, Inc.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jacques BLÜMMEL, Alexander KÜLLER
  • Publication number: 20210290555
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Patent number: 11052050
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Farther, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: July 6, 2021
    Assignee: Varian Medical Systems, Inc.
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Patent number: 10973770
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene and/or a derivative thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 13, 2021
    Assignee: Varian Medical Systems, Inc.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jacques Blummel, Alexander Kuller
  • Publication number: 20210023015
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene and/or a derivative thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 28, 2021
    Inventors: Ulf FRITZ, Olaf FRITZ, Thomas A. GORDY, Ronald WOJCIK, Jaques BLUMMEL, Alexander KULLER
  • Publication number: 20170172933
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Application
    Filed: November 15, 2016
    Publication date: June 22, 2017
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Patent number: 9597419
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Microspheres of the present invention may further be provided with physical and/or chemical enhancements within the particles' cores to enhance visualization of the embolized tissue using a variety of medical imaging modalities, including conventional radiography, fluoroscopy, tomography, computerized tomography, ultrasound, scintillation, magnetic resonance, or other imaging technologies.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 21, 2017
    Assignee: Boston Scientific Limited
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jacques Blümmel, Alexander Küller
  • Patent number: 9511153
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 6, 2016
    Assignee: CeloNova BioSciences Germany GmbH
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Publication number: 20150258224
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Microspheres of the present invention may further be provided with physical and/or chemical enhancements within the particles' cores to enhance visualization of the embolized tissue using a variety of medical imaging modalities, including conventional radiography, fluoroscopy, tomography, computerized tomography, ultrasound, scintillation, magnetic resonance, or other imaging technologies.
    Type: Application
    Filed: April 22, 2015
    Publication date: September 17, 2015
    Inventors: Ulf FRITZ, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jacques Blümmel, Alexander Küller
  • Publication number: 20150250736
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene and/or a derivative thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Application
    Filed: May 22, 2015
    Publication date: September 10, 2015
    Inventors: Ulf FRITZ, Olaf FRITZ, Thomas A. GORDY, Ronald WOJCIK, Jacques BLÜMMEL, Alexander KÜLLER
  • Patent number: 9114162
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Microspheres of the present invention may further be provided with physical and/or chemical enhancements within the particles' cores to enhance visualization of the embolized tissue using a variety of medical imaging modalities, including conventional radiography, fluoroscopy, tomography, computerized tomography, ultrasound, scintillation, magnetic resonance, or other imaging technologies.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: August 25, 2015
    Assignee: CELONOVA BIOSCIENCES, INC.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Jacques Blümmel, Alexander Küller, Gretchen B. Wojcik
  • Patent number: 9107850
    Abstract: Polymeric particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Particles of the present invention may further be provided as color-coded microspheres or nanospheres to allow ready identification of the sized particles in use. Such color-coded microspheres or nanospheres may further be provided in like color-coded delivery or containment devices to enhance user identification and provide visual confirmation of the use of a specifically desired size of microspheres or nanospheres.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: August 18, 2015
    Assignee: CELONOVA BIOSCIENCES, INC.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Jacques Blümmel, Alexander Küller, Gretchen B. Wojcik
  • Publication number: 20130052142
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Application
    Filed: September 20, 2012
    Publication date: February 28, 2013
    Applicant: CeloNova BioSciences Germany GmbH
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Patent number: 8318209
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: November 27, 2012
    Assignee: CeloNova BioSciences Germany GmbH
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Publication number: 20120183782
    Abstract: The present disclosure relates to implants with a biocompatible coating having antithrombogenic properties and which also contains a pharmacologically active agent, as well as a process for their production.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 19, 2012
    Applicant: CELONOVA BIOSCIENCES, INC.
    Inventors: Olaf Fritz, Ulf Fritz, Stefan Nagel, Michael Boxberger
  • Publication number: 20100047324
    Abstract: Various embodiments are directed to multi-functional wound-care dressing matrices that can protect and promote new tissue growth at a wound site. The multi-functional wound care matrix can incorporate polyphosphazenes of formula I, as a component that can be configured into various forms, including as fibrous mats, porous membranes, nonporous films, particulate formulations, and equivalents. The multi-functional wound-care dressing matrix of the present disclosure exhibit high-performance properties conferred by polyphosphazenes of formula I. Exceptional biocompatible properties of polyphosphazenes of formula I provide an ideal tissue-contacting surface for the multi-functional wound-care dressing matrix of interest.
    Type: Application
    Filed: February 23, 2009
    Publication date: February 25, 2010
    Applicant: CeloNova BioSciences, Inc.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy
  • Publication number: 20100028260
    Abstract: Various embodiments are directed to color-coded and size-calibrated polymeric particles comprising an acrylate-based hydrogel core incorporating one or more chromophores of interest, and an outer shell comprising polyphosphazenes of formula I, useful for various therapeutic and/or diagnostic procedures. In various embodiments, the color-coded and size-calibrated polymeric particles can be employed in any particle-mediated procedure, including as embolic agents, dermal fillers, and various implantable devices for a broad range of clinical and cosmetic applications. The incorporation of a particular chromophore formulation that correlates with a pre-determined size specificity for implantable and loadable polymeric particles (“color-coded and size-calibrated”) enables the visual detection and identification of particles exhibiting a particular size of interest, and minimizes the probability of user-introduced or procedural errors.
    Type: Application
    Filed: May 15, 2009
    Publication date: February 4, 2010
    Applicant: Celonova Biosciences, Inc.
    Inventors: Ulf Fritz, Olaf Fritz, Thomas A. Gordy, Ronald Wojcik, Jacques BLÜMMEL, Alexander KÜLLER
  • Publication number: 20090110738
    Abstract: Particles are provided for use in therapeutic cosmetic and/or reconstructive procedures to augment defects in tissue to restore contours and/or function. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles may also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in various colors or with customized coloration to match desired tissues. Moreover, such particles may be loaded to provide localized treatment with an active component agent in specific clinical uses.
    Type: Application
    Filed: October 26, 2007
    Publication date: April 30, 2009
    Applicant: CELONOVA BIOSCIENCES, INC.
    Inventors: Thomas A. Gordy, Olaf Fritz, Ulf Fritz, Ronald Wojcik, Teresa Wilson, Harry R. Jacobson