Patents by Inventor Dora M. Paolucci
Dora M. Paolucci 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).
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Patent number: 8459200Abstract: An exposure indicating device disposed in a respirator system. The exposure indicating device comprises a diffractive optical element. The exposure indicating device comprises a material having an index of refraction that changes as a function of exposure to a chemical vapor, where the exposure indicating device provides an optical signal that changes in optical property as a function of exposure to the chemical vapor.Type: GrantFiled: June 15, 2009Date of Patent: June 11, 2013Assignee: 3M Innovative Properties CompanyInventors: James M. Battiato, Dora M. Paolucci
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Patent number: 8293340Abstract: Plasma deposited microporous analyte detection layers, method of forming analyte detection layers, and analyte sensors including the same are disclosed. An analyte sensor includes a substrate and a microporous amorphous random covalent network layer. The microporous amorphous random covalent network layer includes silicon, carbon, hydrogen and oxygen with a mean pore size in a range from 0.5 to 10 nanometers and an optical thickness in a range from 0.2 to 2 micrometers.Type: GrantFiled: December 21, 2005Date of Patent: October 23, 2012Assignee: 3M Innovative Properties CompanyInventors: Moses M. David, Neal A. Rakow, Dora M. Paolucci, John E. Trend
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Patent number: 8067110Abstract: A sorbent media protective device includes an enclosure having a gas inlet, gas outlet and a thin-film multilayer indicator. The thin-film multilayer indicator is proximate sorbent media that can sorb a vapor of interest flowing from the gas inlet towards the gas outlet. The indicator includes a porous detection layer whose optical thickness changes in the presence of the vapor, located between a semireflective layer and a reflective layer permeable to the vapor. With equilibration at the applied vapor concentration between at least a portion of the media and the vapor, the vapor can pass through the reflective layer into the detection layer and change the detection layer optical thickness sufficiently to cause a visibly discernible change in the indicator appearance if viewed through the semireflective layer.Type: GrantFiled: September 11, 2006Date of Patent: November 29, 2011Assignee: 3M Innovative Properties CompanyInventors: Neal A. Rakow, James P. Mathers, Jun-Ying Zhang, Dora M. Paolucci, Richard J. Poirier, Moses M. David, John E. Trend, Michael S. Wendland
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Patent number: 8004767Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: GrantFiled: July 27, 2009Date of Patent: August 23, 2011Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Publication number: 20110088611Abstract: An exposure indicating device disposed in a respirator system. The exposure indicating device comprises a diffractive optical element. The exposure indicating device comprises a material having an index of refraction that changes as a function of exposure to a chemical vapor, where the exposure indicating device provides an optical signal that changes in optical property as a function of exposure to the chemical vapor.Type: ApplicationFiled: June 15, 2009Publication date: April 21, 2011Inventors: James M. Battiato, Dora M. Paolucci
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Patent number: 7906223Abstract: An optically-responsive multilayer reflective article is formed by applying a dilute solution or suspension of metallic nanoparticles to an optically-responsive detection layer. The solution or suspension is allowed to dry to form a semicontinuous liquid- or vapor-permeable light-reflective layer that will permit a liquid or vapor analyte to pass through the light-reflective layer to cause an optically-responsive change in the detection layer in the presence of the analyte.Type: GrantFiled: September 11, 2006Date of Patent: March 15, 2011Assignee: 3M Innovative Properties CompanyInventors: Neal A. Rakow, Dora M. Paolucci, Moses M. David, Michael S. Wendland, John E. Trend, Richard J. Poirier
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Patent number: 7901776Abstract: A microporous carbon material includes a porous carbon skeleton having an average pore size from 0.1 to 10 nanometers and being substantially free of pores greater than 1 micrometer. Methods of forming the microporous carbon material are also disclosed.Type: GrantFiled: December 29, 2006Date of Patent: March 8, 2011Assignee: 3M Innovative Properties CompanyInventors: Dora M. Paolucci, Moses M. David, Neal A. Rakow, John E. Trend
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Publication number: 20100189922Abstract: An optically-responsive multilayer reflective article is formed by applying a dilute solution or suspension of metallic nanoparticles to an optically-responsive detection layer. The solution or suspension is allowed to dry to form a semicontinuous liquid- or vapor-permeable light-reflective layer that will permit a liquid or vapor analyte to pass through the light-reflective layer to cause an optically-responsive change in the detection layer in the presence of the analyte.Type: ApplicationFiled: April 6, 2010Publication date: July 29, 2010Inventors: Neal A. Rakow, Dora M. Paolucci, Moses M. David, Michael S. Wendland, John E. Trend, Richard J. Poirier
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Publication number: 20090284840Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: ApplicationFiled: July 27, 2009Publication date: November 19, 2009Inventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Patent number: 7583444Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: GrantFiled: December 21, 2005Date of Patent: September 1, 2009Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Patent number: 7556774Abstract: A method of making an optochemical sensor, the method comprising: providing a reflective substrate having a major surface; affixing a detection layer comprising at least one intrinsically microporous polymer to at least a portion of the major surface; depositing a substantially continuous semi-reflective metallic layer on at least a portion of the detection layer, the semi-reflective metallic layer comprising palladium and having a network of fine irregular cracks therein; and heating the detection layer and semi-reflective metallic layer in the presence of molecular oxygen at a temperature sufficient to cause the cracks to widen. Sensors prepared according to method are also disclosed.Type: GrantFiled: December 21, 2005Date of Patent: July 7, 2009Assignee: 3M Innovative Properties CompanyInventors: Neal A. Rakow, Michael S. Wendland, Michael C. Palazzotto, Dora M. Paolucci, Richard J. Poirier, Stefan H. Gryska, John E. Trend, Moses M. David
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Publication number: 20080160858Abstract: A microporous carbon material includes a porous carbon skeleton having an average pore size from 0.1 to 10 nanometers and being substantially free of pores greater than 1 micrometer. Methods of forming the microporous carbon material are also disclosed.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Inventors: Dora M. Paolucci, Moses M. David, Neal A. Rakow, John E. Trend
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Publication number: 20080063874Abstract: An optically-responsive multilayer reflective article is formed by applying a dilute solution or suspension of metallic nanoparticles to an optically-responsive detection layer. The solution or suspension is allowed to dry to form a semicontinuous liquid- or vapor-permeable light-reflective layer that will permit a liquid or vapor analyte to pass through the light-reflective layer to cause an optically-responsive change in the detection layer in the presence of the analyte.Type: ApplicationFiled: September 11, 2006Publication date: March 13, 2008Inventors: Neal A. Rakow, Dora M. Paolucci, Moses M. David, Michael S. Wendland, John E. Trend, Richard J. Poirier
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Publication number: 20080063575Abstract: A sorbent media protective device includes an enclosure having a gas inlet, gas outlet and a thin-film multilayer indicator. The thin-film multilayer indicator is proximate sorbent media that can sorb a vapor of interest flowing from the gas inlet towards the gas outlet. The indicator includes a porous detection layer whose optical thickness changes in the presence of the vapor, located between a semireflective layer and a reflective layer permeable to the vapor. With equilibration at the applied vapor concentration between at least a portion of the media and the vapor, the vapor can pass through the reflective layer into the detection layer and change the detection layer optical thickness sufficiently to cause a visibly discernible change in the indicator appearance if viewed through the semireflective layer.Type: ApplicationFiled: September 11, 2006Publication date: March 13, 2008Inventors: Neal A. Rakow, James P. Mathers, Jun-Ying Zhang, Dora M. Paolucci, Richard J. Poirier, Moses M. David, John E. Trend, Michael S. Wendland
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Patent number: 7297731Abstract: A cured coating for a siliceous material, preferably an optical fiber, comprises a thermally cured polyorganosilsesquioxane having an oxide powder dispersed therein. The oxide powder has a refractive index from about 1.2 to about 2.7 and includes particles having a particle size less than about 100 nanometers. The cured coating has adhesion to the siliceous material and is transparent to ultraviolet radiation.Type: GrantFiled: March 11, 2003Date of Patent: November 20, 2007Assignee: 3M Innovative Properties CompanyInventors: Christopher B. Walker, Jr., D. Scott Thompson, Dora M. Paolucci, John T. Brady
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Patent number: 7257303Abstract: Disclosed herein is a coated optical fiber comprising: a siliceous optical fiber including a core inside a cladding; and a cured coating comprising: a thermally cured polyorganosilsesquioxane; and an oxide powder dispersed in said cured polyorganosilsesquioxane, wherein said oxide powder has a refractive index from about 1.2 to about 2.7 and includes a plurality of particles having a particle size less than about 100 nanometers, said cured coating having adhesion to said siliceous optical fiber and further having transparency to ultraviolet radiation. Also disclosed herein is a fiber optic device comprising the optical fiber.Type: GrantFiled: July 7, 2006Date of Patent: August 14, 2007Assignee: 3M Innovative Properties CompanyInventors: Christopher B. Walker, Jr., D. Scott Thompson, Dora M. Paolucci, John T. Brady
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Patent number: 6898360Abstract: An optical waveguide, such as an optical fiber, including a length of waveguide and at least one discrete longitudinal section having increased photosensitivity with respect to other portions of the waveguide.Type: GrantFiled: December 18, 2002Date of Patent: May 24, 2005Assignee: 3M Innovative Properties CompanyInventors: Nirmal K. Viswanathan, Dora M. Paolucci, James B. Carpenter
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Publication number: 20040258340Abstract: A wavelength tunable optical device comprises a polarization maintaining (PM) optical fiber having a length, a first end, a second end, and an initial birefringence. The PM optical fiber receives polarized light from a first polarizer adjacent to the first end of the PM optical fiber. A second polarizer receives a light output from the second end of the PM optical fiber. A wavelength tunable optical device provides a plurality of spectral peaks leaving the second polarizer with a periodicity determined by the length of the PM optical fiber. Each of the plurality of spectral peaks has a wavelength dependent upon the length and the initial birefringence of the PM optical fiber. The PM optical fiber is a radiation tunable optical fiber adaptable to a tuned birefringence such that the periodicity and each of the wavelengths change to a selectively tuned wavelength and a tuned periodicity.Type: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventors: Dora M. Paolucci, James M. Battiato, James R. Onstott, Craig R. Sykora, Ding Wang
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Publication number: 20040258341Abstract: A radiation tuned optical fiber comprises an optical fiber that includes a substantially circular core and a cladding containing an asymmetric stress zone. The substantially circular core has an initial birefringence. A length of the optical fiber has at least one radiation-tuned portion wherein the substantially circular core has a tuned birefringence to provide the radiation tuned optical fiber in which the tuned birefringence differs from the initial birefringence.Type: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventors: Dora M. Paolucci, James R. Onstott, Craig R. Sykora, Ding Wang
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Publication number: 20040223694Abstract: The present invention relates to increasing the photosensitivity of optical fibers. One aspect of the present invention comprises a method for rapidly diffusing hydrogen or deuterium into an optical fiber from a gas mixture having a low total hydrogen content to generate changes in the refractive index of the optical fiber. The resulting photosensitive fiber may be used to create optical devices including Bragg gratings and Bragg grating-based devices.Type: ApplicationFiled: April 4, 2003Publication date: November 11, 2004Inventors: William V. Dower, Nirmal K. Viswanathan, Dora M. Paolucci, Michael D. Barrera