Patents by Inventor Steven A Carlson

Steven A Carlson 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: 20150140205
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventor: Steven A. Carlson
  • Patent number: 8962182
    Abstract: Provided is a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer. Also provided are methods of preparing such separator/anode assemblies.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Patent number: 8730571
    Abstract: A system and method for windows films having one or more layers incorporating an organic free radical compound, wherein the layers reflect in the infrared region, and one or more layers of a multilayer interference stack of a metal/metal or metal/metal oxide design. Preferably, the organic free radical compound is a salt of an aminium radical cation. One or more layers of the multilayer interference stack may incorporate an aminium radical cation compound. Also provided are security windows that utilize such window films.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: May 20, 2014
    Assignees: Madico, Inc., Optodot Corporation
    Inventors: David W. Avison, Steven A. Carlson, Peter K. Barrett
  • Publication number: 20120135257
    Abstract: Provided is a laser imageable media that forms both a vesicular bubble image and an infrared image upon exposure to laser radiation. The laser imageable media comprises (1) a substrate, preferably a transparent plastic substrate, (2) an infrared absorbing layer comprising an infrared absorbing compound, preferably an aminium radical cation compound, that exhibits a reduction in infrared absorption when exposed to the laser radiation, and (3) a polymeric layer comprising an organic polymer, preferably nitrocellulose, overlying the infrared absorbing layer. The vesicular image on a transparent plastic substrate is readable with a visible scanner without the use of any reflective background material behind the transparent plastic substrate.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 31, 2012
    Applicant: OPTODOT CORPORATION
    Inventors: Steven A. Carlson, Benjamin Sloan
  • Publication number: 20120115029
    Abstract: Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 10, 2012
    Applicant: OPTODOT CORPORATION
    Inventor: Steven A. Carlson
  • Publication number: 20120070712
    Abstract: Provided is a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer. Also provided are methods of preparing such separator/anode assemblies.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 22, 2012
    Applicant: OPTODOT CORPORATION
    Inventor: Steven A. Carlson
  • Patent number: 7160603
    Abstract: Provided are methods of preparing an article in which a microporous layer is coated on a temporary carrier substrate and a substrate is then laminated to the microporous layer, prior to removing the temporary carrier substrate from the microporous layer. The microporous layer comprises one or more microporous xerogel layers. Optionally, the microporous layer assembly may comprise one or more non-microporous coating layers which are in contact with at least one of the microporous xerogel layers, and one of the non-microporous coating layers may be coated on the temporary carrier substrate prior to coating the microporous layer. Also provided are articles, such as electrochemical cells, capacitors, fuel cells, ink jet ink printing media, and filtration media, prepared by such methods.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 9, 2007
    Assignee: Sion Power Corporation
    Inventor: Steven A. Carlson
  • Patent number: 7081142
    Abstract: Methods of preparing a cathode/separator assembly for use in electrochemical cells in which a protective coating layer is coated on a temporary carrier substrate, a microporous separator layer is then coated on the protective coating layer, and a cathode is then coated or laminated on the separator layer, prior to removing the temporary carrier substrate from the protective coating layer. Also, methods of preparing electrochemical cells utilizing cathode/separator assemblies prepared by such methods, and cathode/separator assemblies and electrochemical cells prepared by such methods.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 25, 2006
    Assignee: Sion Power Corporation
    Inventor: Steven A. Carlson
  • Patent number: 7066971
    Abstract: Methods of preparing a cathode/separator assembly for use in electrochemical cells in which a protective coating layer, such as a single ion conducting layer, is coated on a temporary carrier substrate, a microporous separator layer is then coated on the protective coating layer, and a cathode active layer is then coated on the separator layer, prior to removing the temporary carrier substrate from the protective coating layer. Additional layers, including an edge insulating layer, a cathode current collector layer, an electrode insulating layer, an anode current collector layer, an anode layer such as a lithium metal layer, and an anode protective layer, such as a single ion conducting layer, may be applied subsequent to the coating step of the microporous separator layer. Also, methods of preparing electrochemical cells utilizing cathode/separator assemblies prepared by such methods, and cathode/separator assemblies and electrochemical cells prepared by such methods.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: June 27, 2006
    Assignee: Sion Power Corporation
    Inventor: Steven A. Carlson
  • Patent number: 6757094
    Abstract: The present invention pertains to an optical shutter comprising an photon-absorbing layer and a surface layer in a transparent state on at least one side of the photon-absorbing layer, wherein the optical shutter is characterized by the absorption of photons to change the photon-absorbing layer to an opaque state and to change the surface layer to a reflective state. The optical shutter is reversibly imageable between these transparent and reflective states. The optical shutter may comprise a metallized layer on at least one side of the photon-absorbing layer. Preferably, the optical shutter comprises an organic free radical compound, such as a salt of an aminium radical cation, in the photon-absorbing layer. Also provided are optical switch devices and optical buffers comprising such optical shutters and methods of switching an optical signal utilizing such optical shutters and switch devices.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: June 29, 2004
    Assignee: Optodot Corporation
    Inventors: Steven A. Carlson, Arthur W. Berger
  • Patent number: 6724512
    Abstract: The present invention pertains to an optical shutter comprising an organic free radical compound, wherein the optical shutter is reversibly imageable to switch between a non-reflective and transparent state and a reflective state. This switching may be induced by the absorption of photons, the application of an electric current, or thermally. Preferably, the organic free radical compound is a salt of an aminium radical cation. Also provided are optical switch devices and optical buffers comprising such optical shutters, methods of switching an optical signal utilizing such optical shutters and switch devices, and methods of storing an optical signal utilizing such optical buffers.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: April 20, 2004
    Assignee: Optodot Corporation
    Inventors: Steven A. Carlson, Arthur W. Berger
  • Patent number: 6652440
    Abstract: Provided is an electroactive organic polymer, which polymer comprises conductive polymer segments and non-conductive polymer segments, having one or more of these polymer segments bonded to polysulfide chains, and wherein the polysulfide chains comprise one or more moieties selected from the group consisting of —(Sm)—, —(Sm)−, and (Sm)2−, where m is an integer from 3 to 200 and is the same or different at each occurrence. Also provided are composite cathodes comprising such polymers, electrochemical cells comprising such cathodes, and methods of making such polymers, composite cathodes, and cells.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: November 25, 2003
    Assignee: Moltech Corporation
    Inventors: Igor P. Kovalev, Vadim V. Annenkov, Steven A. Carlson, Boris A. Trofimov
  • Publication number: 20030206324
    Abstract: The present invention pertains to an optical shutter comprising an photon-absorbing layer and a surface layer in a transparent state on at least one side of the photon-absorbing layer, wherein the optical shutter is characterized by the absorption of photons to change the photon-absorbing layer to an opaque state and to change the surface layer to a reflective state. The optical shutter is reversibly imageable between these transparent and reflective states. The optical shutter may comprise a metallized layer on at least one side of the photon-absorbing layer. Preferably, the optical shutter comprises an organic free radical compound, such as a salt of an aminium radical cation, in the photon-absorbing layer. Also provided are optical switch devices and optical buffers comprising such optical shutters and methods of switching an optical signal utilizing such optical shutters and switch devices.
    Type: Application
    Filed: May 29, 2003
    Publication date: November 6, 2003
    Inventors: Steven A. Carlson, Arthur W. Berger
  • Publication number: 20030194513
    Abstract: Provided are ink jet recording media comprising a substrate and a porous layer, wherein the porous layer comprises an inorganic oxide, preferably an inorganic oxide xerogel, an organic polymer as a binder, an aminium radical cation, and an arylamine. The aminium radical cation and the arylamine are added to reduce the fading of the colorants in the ink jet media after imaging. Also provided are imaged ink jet media comprising such stabilizing additives and layers and methods of preparing such ink jet recording media and such imaged ink jet media.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 16, 2003
    Inventor: Steven A. Carlson
  • Patent number: 6589451
    Abstract: The present invention pertains to an optical shutter comprising an organic free compound, preferably a radical cation or a radical anion, wherein the organic free radical compound forms an oxidized or a reduced product having a change in absorption in a near-infrared or a visible wavelength region as a result of a photo-induced electron transfer reaction of the free radical compound. Preferably, the photo-induced electron transfer reaction occurs in less than 0.1 nanoseconds after absorption of photons by the free radical compound. Also, preferably, the change in absorption is reversible and occurs in less than 10 milliseconds. Also provided is an optical shutter for use as an optical switch in fiber optic communications, and, alternatively, for use in a laser protection device, a security protection system, and an eyewear device.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: July 8, 2003
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Publication number: 20030118910
    Abstract: Provided are methods of preparing an article in which a microporous layer is coated on a temporary carrier substrate and a substrate is then laminated to the microporous layer, prior to removing the temporary carrier substrate from the microporous layer. The microporous layer comprises one or more microporous xerogel layers. Optionally, the microporous layer assembly may comprise one or more non-microporous coating layers which are in contact with at least one of the microporous xerogel layers, and one of the non-microporous coating layers may be coated on the temporary carrier substrate prior to coating the microporous layer. Also provided are articles, such as electrochemical cells, capacitors, fuel cells, ink jet ink printing media, and filtration media, prepared by such methods.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 26, 2003
    Inventor: Steven A. Carlson
  • Patent number: 6583916
    Abstract: The present invention pertains to an optical shutter comprising a photon-absorbing layer and a surface layer in a transparent state on at least one side of the photon-absorbing layer, wherein the optical shutter is characterized by the absorption of photons to change the photon-absorbing layer to an opaque state and to change the surface layer to a reflective state. The optical shutter is reversibly imageable between these transparent and reflective states. The optical shutter may comprise a metallized layer on at least one side of the photon-absorbing layer. Preferably, the optical shutter comprises an organic free radical compound, such as a salt of an aminium radical cation, in the photon-absorbing layer. Also provided are optical switch devices and optical buffers comprising such optical shutters and methods of switching an optical signal utilizing such optical shutters and switch devices.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 24, 2003
    Assignee: Optodot Corporation
    Inventors: Steven A. Carlson, Arthur W. Berger
  • Patent number: 6577441
    Abstract: An optical amplifier includes an organic luminescent free radical compound, preferably a salt of a radical cation or a salt of a radical anion, wherein an excited state of the luminescent free radical compound undergoes stimulated emission in an infrared wavelength region, such as 1500 to 1650 nm. Suitable organic luminescent free radical compounds include aminium infrared-absorbing dyes.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: June 10, 2003
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Patent number: 6525859
    Abstract: The present invention pertains to an optical shutter comprising an organic free compound, such as a radical cation or a radical anion, and a polydiacetylene compound, wherein the polydiacetylene compound is characterized by having a change in absorption in a wavelength region as a result of a photo-induced heat transfer from the free radical compound. The thermochromic change in absorption is reversed by thermal cooling or by a photo-induced reaction after the photo-induced heat transfer. Also provided is an optical shutter for use as an optical switch in fiber optic communications, and, alternatively, for use in a laser protection device, in a security protection system, or in an eyewear device.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: February 25, 2003
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Patent number: 6497780
    Abstract: Provided are methods of preparing an article in which a microporous layer is coated on a temporary carrier substrate and a substrate is then laminated to the microporous layer, prior to removing the temporary carrier substrate from the microporous layer. The microporous layer may comprise one or more microporous xerogel layers. Optionally, the microporous layer assembly may comprise one or more non-microporous coating layers which are in contact with at least one of the microporous xerogel layers, and one of the non-microporous coating layers may be coated on the temporary carrier substrate prior to coating the microporous layer. Also provided are articles, such as electrochemical cells, capacitors, fuel cells, ink jet ink printing media, and filtration media, prepared by such methods.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: December 24, 2002
    Inventor: Steven A. Carlson