Patents by Inventor Przemyslaw P. Markowicz

Przemyslaw P. Markowicz 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: 10543061
    Abstract: The present disclosure provides engineered surfaces that exhibit reduced specular reflection and gloss while still providing a high intensity of reflected light at multiple incident angles. The structured metal surfaces include engineered topography that increases diffuse reflection, leading to a greater intensity of light perceived at multiple viewing angles. A viewer engaging such surfaces is likely to perceive a stronger ‘white’ reflection of the incident light and an improvement, particularly in orthodontic and other oral applications, of aesthetic appearance. Methods of creating the engineered surfaces and orthodontic articles incorporating the engineered surfaces are also disclosed.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: January 28, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel J. Skamser, Przemyslaw P. Markowicz, Steven Hin-Chung Kong
  • Publication number: 20190375072
    Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 12, 2019
    Inventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L.W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
  • Publication number: 20180370205
    Abstract: Provided are adhesive-backed films and related methods useful in laser cutting a substrate protected by an adhesive-backed film. The adhesive-backed film includes a base layer comprised of a polymer and having opposing first and second major surfaces and an adhesive layer comprising a pressure-sensitive adhesive directly or indirectly coupled to the second major surface. An infrared absorber is present in one or both of the polymer and the pressure-sensitive adhesive, and the adhesive-backed film is sufficiently transparent to enable visual inspection of a surface having the adhesive-backed film disposed thereon.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 27, 2018
    Inventors: Przemyslaw P. Markowicz, Neeraj Sharma, Jeremy K. Larsen, Jeffrey O. Emslander, Jung-Sheng Wu, Richard G. Anderson, Frank C. Piras
  • Patent number: 10105524
    Abstract: The present application provides articles (10) having a polymeric substrate (12) with a plurality of solid and/or hollow microneedles (20) extending therefrom. Each solid microneedle is formed by a molding process and the microneedle has body with first (30) and second cavities (40) extending therein. The hollow microneedles are formed by removing a portion of the polymeric material disposed between the first cavity and the second cavity. A method for determining the location of a microneedle in an article comprising solid microneedles is also provided. The method comprises directing electromagnetic radiation toward an article comprising a plurality of microneedles and imaging the article.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: October 23, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Kenneth A. P. Meyer, Przemyslaw P. Markowicz, Stanley Rendon, Robert L. W. Smithson, Ryan Patrick Simmers
  • Patent number: 9884447
    Abstract: A tool for making retroreflective articles comprises (a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements and (b) a welding seam through at least a portion of the array. An optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 ?m or less.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 6, 2018
    Inventor: Przemyslaw P. Markowicz
  • Publication number: 20170245962
    Abstract: The present disclosure provides engineered surfaces that exhibit reduced specular reflection and gloss while still providing a high intensity of reflected light at multiple incident angles. The structured metal surfaces include engineered topography that increases diffuse reflection, leading to a greater intensity of light perceived at multiple viewing angles. A viewer engaging such surfaces is likely to perceive a stronger ‘white’ reflection of the incident light and an improvement, particularly in orthodontic and other oral applications, of aesthetic appearance. Methods of creating the engineered surfaces and orthodontic articles incorporating the engineered surfaces are also disclosed.
    Type: Application
    Filed: October 1, 2015
    Publication date: August 31, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Daniel J. Skamser, Przemyslaw P. Markowicz, Steven Hin-Chung Kong
  • Publication number: 20150306363
    Abstract: The present application provides articles (10) having a polymeric substrate (12) with a plurality of solid and/or hollow microneedles (20) extending therefrom. Each solid microneedle is formed by a molding process and the microneedle has body with first (30) and second cavities (40) extending therein. The hollow microneedles are formed by removing a portion of the polymeric material disposed between the first cavity and the second cavity. A method for determining the location of a microneedle in an article comprising solid microneedles is also provided. The method comprises directing electromagnetic radiation toward an article comprising a plurality of microneedles and imaging the article.
    Type: Application
    Filed: December 13, 2013
    Publication date: October 29, 2015
    Inventors: KENNETH A.P. MEYER, PRZEMYSLAW P. MARKOWICZ, STANLEY RENDON, ROBERT L.W. SMITHSON, RYAN PATRICK SIMMERS
  • Patent number: 9019607
    Abstract: A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 28, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: William Ward Merrill, Douglas S. Dunn, Przemyslaw P. Markowicz
  • Patent number: 8975011
    Abstract: Multi-layer articles are described that are capable of forming color images. The articles may contain at least two layers, a thermally activatable layer and a blocking layer, or at least three layers with two thermally activatable layers and a blocking layer between. The thermally activatable layers absorb light of a write wavelength and have an absorption threshold for activation. The blocking layer blocks light of the write wavelength at certain incident angles or polarization states and permits light of the write wavelength and certain incident angles or polarization states to pass through. The thermally activatable layers may be layers with a light to heat convertor composition and a color changing compound or they may be a group of layers arranged to change its reflective characteristic upon exposure to light while maintaining the structural integrity of the group of layers.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: March 10, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Douglas S. Dunn, William Ward Merrill, Przemyslaw P. Markowicz
  • Patent number: 8975012
    Abstract: Multi-layer articles are described that are capable of forming color images. The articles include at least six layers, four thermally activatable layers (layers 1-4) and two blocking layers (layer 5 and 6). The layers are arranged such that layer 5 is disposed between layers 1 and 2 and layer 6 is disposed between layers 3 and 4. Thermally activatable layers 1 and 2 are activatable upon exposure to light of a first write wavelength, and blocking layer 5 is adapted to at least partially block light of the first write wavelength. Thermally activatable layers 3 and 4 are activatable upon exposure to light of a second write wavelength, and blocking layer 6 is adapted to at least partially block light of the second write wavelength. At least one, and possibly all of the thermally activatable layers include a light to heat convertor composition and a color changing compound.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 10, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Douglas S. Dunn, William Ward Merrill, Przemyslaw P. Markowicz
  • Publication number: 20150048067
    Abstract: A tool for making retroreflective articles comprises (a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements and (b) a welding seam through at least a portion of the array. An optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 ?m or less.
    Type: Application
    Filed: March 13, 2013
    Publication date: February 19, 2015
    Inventor: Przemyslaw P. Markowicz
  • Patent number: 8885146
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Publication number: 20140092372
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 8605256
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: December 10, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 8455846
    Abstract: A method includes scanning a radiation beam with respect to a multi-photon curable photoreactive composition. The radiation beam includes a power sufficient to at least partially cure a volume of the multiphoton curable photoreactive composition. The method further includes modifying a characteristic of the radiation beam as the radiation beam is scanned.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 4, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora, Robert J. DeVoe, Dean Faklis
  • Publication number: 20130095435
    Abstract: Multi-layer articles are described that are capable of forming color images. The articles include at least six layers, four thermally activatable layers (layers 1-4) and two blocking layers (layer 5 and 6). The layers are arranged such that layer 5 is disposed between layers 1 and 2 and layer 6 is disposed between layers 3 and 4. Thermally activatable layers 1 and 2 are activatable upon exposure to light of a first write wavelength, and blocking layer 5 is adapted to at least partially block light of the first write wavelength. Thermally activatable layers 3 and 4 are activatable upon exposure to light of a second write wavelength, and blocking layer 6 is adapted to at least partially block light of the second write wavelength. At least one, and possibly all of the thermally activatable layers include a light to heat convertor composition and a color changing compound.
    Type: Application
    Filed: June 30, 2011
    Publication date: April 18, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Douglas S. Dunn, William Ward Merrill, Przemyslaw P. Markowicz
  • Publication number: 20130095434
    Abstract: Multi-layer articles are described that are capable of forming color images. The articles may contain at least two layers, a thermally activatable layer and a blocking layer, or at least three layers with two thermally activatable layers and a blocking layer between. The thermally activatable layers absorb light of a write wavelength and have an absorption threshold for activation. The blocking layer blocks light of the write wavelength at certain incident angles or polarization states and permits light of the write wavelength and certain incident angles or polarization states to pass through.
    Type: Application
    Filed: June 27, 2011
    Publication date: April 18, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Douglas S. Dunn, William Ward Merrill, Przemyslaw P. Markowicz
  • Publication number: 20110255167
    Abstract: A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 20, 2011
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William Ward Merrill, Douglas S. Dunn, Przemyslaw P. Markowicz
  • Patent number: 8004676
    Abstract: A method is provided for detection of analytes using the Surface Plasmon Resonance effect. The method comprises providing a metal film on a transparent substrate. The free surface of the metal film is exposed to a test sample. An anlyte in the sample can interact directly with the metal film or via analyte binding molecules (ABMs) complexed to the film. Light is directed incident to the surface of film in contact with the substrate. Light is reflected from the surface of the film under SPR conditions. The reflected light is collected and the second and/or third harmonics of the resulting electrical signal, which are indicative of the phase and polarization state of the reflected light, are determined. The second and third harmonics are correlated to the presence and/or concentration of the analyte.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: August 23, 2011
    Assignee: The Research Foundation of State University of New York
    Inventors: Paras N. Prasad, Przemyslaw P. Markowicz, Wing Cheung Law, Andrei Kabashin, Sergiy Patskovsky
  • Publication number: 20110001950
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Application
    Filed: February 17, 2009
    Publication date: January 6, 2011
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora