Patents by Inventor Roger J. Stumo
Roger J. Stumo 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: 9588270Abstract: Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.Type: GrantFiled: January 6, 2012Date of Patent: March 7, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: William W. Merrill, James M. Jonza, Olester Benson, Jr., Andrew J. Ouderkirk, Michael F. Weber, Janet T. Keller, Roger J. Stumo
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Patent number: 8481157Abstract: Polymeric fibers along with methods and systems for extruding polymeric fibers are disclosed. The extrusion process preferably involves the delivery of a lubricant separately from a polymer melt stream to each orifice of an extrusion die such that the lubricant preferably encases the polymer melt stream as it passes through the die orifice.Type: GrantFiled: January 30, 2007Date of Patent: July 9, 2013Assignee: 3M Innovative Properties CompanyInventors: Bruce B. Wilson, Roger J. Stumo, Stanley C. Erickson, William J. Kopecky, James C. Breister
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Publication number: 20120105957Abstract: Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.Type: ApplicationFiled: January 6, 2012Publication date: May 3, 2012Inventors: William W. Merrill, James M. Jonza, Olester Benson, JR., Andrew J. Ouderkirk, Michael F. Weber, Janet T. Keller, Roger J. Stumo
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Patent number: 7820282Abstract: The present invention is directed an oriented, foamed article having an integral security element, and a method of making the article. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death certificates, land titles and abstracts and the like.Type: GrantFiled: March 30, 2007Date of Patent: October 26, 2010Assignee: 3M Innovative Properties CompanyInventors: Christopher K. Haas, Robert D. Taylor, William B. Black, James M. Jonza, Jay M. Jennen, David L. Vall, Roger J. Stumo
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Publication number: 20100230835Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.Type: ApplicationFiled: May 24, 2010Publication date: September 16, 2010Inventors: Andrew J. Ouderkirk, Olester Benson, JR., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson
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Patent number: 7738763Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.Type: GrantFiled: March 5, 2008Date of Patent: June 15, 2010Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Olester Benson, Jr., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson
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Publication number: 20090155540Abstract: Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.Type: ApplicationFiled: February 24, 2009Publication date: June 18, 2009Inventors: William W. Merrill, James M. Jouza, Olester Benson, JR., Andrew J. Ouderkirk, Michael F. Weber, Janet T. Keller, Roger J. Stumo
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Patent number: 7476352Abstract: Methods and systems for extruding polymeric fibers are disclosed. The extrusion process preferably involves the delivery of a lubricant separately from a polymer melt stream to each orifice of an extrusion die such that the lubricant preferably encases the polymer melt stream as it passes through the die orifice.Type: GrantFiled: May 21, 2004Date of Patent: January 13, 2009Assignee: 3M Innovative Properties CompanyInventors: Bruce B. Wilson, Roger J. Stumo, Stanley C. Erickson, William L. Kopecky, James C. Breister
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Patent number: 7406239Abstract: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.Type: GrantFiled: February 28, 2005Date of Patent: July 29, 2008Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Richard C. Allen, Olester Benson, Jr., James C. Breister, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson, Harold E. Rude
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Publication number: 20080152282Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.Type: ApplicationFiled: March 5, 2008Publication date: June 26, 2008Inventors: Andrew J. Ouderkirk, Olester Benson, James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson
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Patent number: 7356231Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.Type: GrantFiled: February 28, 2005Date of Patent: April 8, 2008Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Olester Benson, Jr., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson
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Publication number: 20080003430Abstract: Particulate-loaded polymer fibers along with methods and systems for extruding polymeric fibers are disclosed. The particulate-loaded polymer fibers have a fiber body that includes a polymeric binder with a plurality of particles distributed within the polymeric binder. Some of the particles are completely encapsulated within the polymeric binder and others may be embedded such that they are partially exposed on the outer surface of the fiber body. The polymers used in the fibers may be of high molecular weight and the encapsulated particles may be preferentially distributed towards the outer surfaces of the fibers.Type: ApplicationFiled: June 28, 2006Publication date: January 3, 2008Inventors: Bruce B. Wilson, Roger J. Stumo, Stanley C. Erickson, William J. Kopecky, James C. Breister
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Publication number: 20020154406Abstract: Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.Type: ApplicationFiled: April 3, 2002Publication date: October 24, 2002Applicant: 3M Innovative Properties CompanyInventors: William W. Merrill, James M. Jonza, Olester Benson, Andrew J. Ouderkirk, Michael F. Weber, Janet T. Keller, Roger J. Stumo
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Patent number: 5307796Abstract: A method of forming a cup-shaped, non-woven fibrous shaping layer for a filtering face mask. The method includes the steps: (a) heating a non-woven fibrous web that contains at least 40 weight percent thermally bonding fibers, where at least 10 weight percent of the fibrous material is bicomponent fibers, to a temperature at which the thermally bonding fibers, including at least one component of the bicomponent fibers, are softened; and then (b) molding the heated non-woven fibrous web, while the thermally bonding fibers and the at least cone component of the bicomponent fibers are still soft, in a mold having molding members that are at a temperature below the softening temperatures of the thermally bonding fibers, including all components of the bicomponent fibers.Type: GrantFiled: December 20, 1990Date of Patent: May 3, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Joseph P. Kronzer, Roger J. Stumo, James F. Dyrud, Harvey J. Berg