Patents by Inventor James P. Mathers
James P. Mathers 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: 10052266Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: GrantFiled: February 13, 2018Date of Patent: August 21, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Publication number: 20180168937Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: ApplicationFiled: February 13, 2018Publication date: June 21, 2018Inventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Patent number: 9950932Abstract: Zirconia-based particles, sols containing the zirconia-based particles, methods of making the sols and the zirconia-based particles, composites containing the zirconia-based particles in an organic matrix, and sintered bodies prepared from the zirconia-based particles are described. The zirconia-based particles are crystalline, have a primary particles size no greater than 100 nanometers, and are doped with a lanthanide element or with both a lanthanide element and yttrium.Type: GrantFiled: December 21, 2010Date of Patent: April 24, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brant U. Kolb, Mark J. Hendrickson, James P. Mathers, Kathleen M. Humpal, Neeraj Sharma, Myles L. Brostrom
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Patent number: 9925126Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: GrantFiled: April 13, 2017Date of Patent: March 27, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Publication number: 20170216153Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: ApplicationFiled: April 13, 2017Publication date: August 3, 2017Inventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Patent number: 9657152Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: GrantFiled: August 3, 2012Date of Patent: May 23, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Publication number: 20150203650Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).Type: ApplicationFiled: August 3, 2012Publication date: July 23, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brant U. Kolb, Bryan C. Feisel, Martin Goetzinger, Philip S. Hall, Holger Hauptmann, Mark J. Hendrickson, Kathleen M. Humpal, John W. Longabach, James P. Mathers, Roberta R. Naujok, Paul D. Pennington, Gallus Schechner
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Patent number: 8969227Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.Type: GrantFiled: October 29, 2013Date of Patent: March 3, 2015Assignee: 3M Innovative Properties CompanyInventors: James P. Mathers, Kathleen M. Humpal, Brant U. Kolb, Mark J. Hendrickson, Myles L. Brostrom, Holger Hauptmann
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Publication number: 20140057774Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.Type: ApplicationFiled: October 29, 2013Publication date: February 27, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: James P. Mathers, Kathleen M. Humpal, Brant U. Kolb, Mark J. Hendrickson, Myles L. Brostrom, Holger Hauptmann
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Patent number: 8598058Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.Type: GrantFiled: December 21, 2010Date of Patent: December 3, 2013Assignee: 3M Innovative Properties CompanyInventors: James P. Mathers, Kathleen M. Humpal, Brant U. Kolb, Mark J. Hendrickson, Myles L. Brostrom, Holger Hauptmann
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Publication number: 20120277088Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.Type: ApplicationFiled: December 21, 2010Publication date: November 1, 2012Inventors: James P. Mathers, Kathleen M. Humpal, Brant U. Kolb, Mark J. Hendrickson, Myles L. Brostrom, Holger Hauptmann
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Publication number: 20120264588Abstract: Zirconia-based particles, sols containing the zirconia-based particles, methods of making the sols and the zirconia-based particles, composites containing the zirconia-based particles in an organic matrix, and sintered bodies prepared from the zirconia-based particles are described. The zirconia-based particles are crystalline, have a primary particles size no greater than 100 nanometers, and are doped with a lanthanide element or with both a lanthanide element and yttrium.Type: ApplicationFiled: December 21, 2010Publication date: October 18, 2012Inventors: Brant U. Kolb, Mark J. Hendrickson, James P. Mathers, Kathleen M. Humpal, Neeraj Sharma, Myles L. Brostrom
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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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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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Publication number: 20030090800Abstract: The present invention relates to reflective elements comprising reinforcement particles dispersed within a glass or ceramic core and optical elements partially embedded into the core. The invention further relates to reflective articles, and in particular pavement markings, comprising the reflective elements as well as methods of making the reflective elements.Type: ApplicationFiled: November 1, 2001Publication date: May 15, 2003Applicant: 3M Innovative Properties CompanyInventors: Kathleen M. Humpal, James P. Mathers
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Patent number: 5917652Abstract: All-ceramic retroreflective elements which may be used in pavement markings comprising an opacified ceramic core and ceramic optical elements partially embedded into the core.Type: GrantFiled: March 2, 1998Date of Patent: June 29, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: James P. Mathers, Kathleen M. Humpal, Roger W. Lange
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Patent number: 5774265Abstract: All-ceramic retroreflective elements which may be used in pavement markings comprising an opacified ceramic core and ceramic optical elements partially embedded into the core.Type: GrantFiled: February 5, 1996Date of Patent: June 30, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: James P. Mathers, Chris J. Goodbrake, Kathleen A. Hachey, Thomas P. Hedblom, Kathleen M. Humpal, Roger W. Lange, David C. May, Kyung H. Moh, Thomas E. Forester
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Patent number: 5478456Abstract: Electrically conductive sputtering target comprising yttria and amorphous carbon, a method of making the same, and a method of using the same.Type: GrantFiled: October 1, 1993Date of Patent: December 26, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Kathleen M. Humpal, James P. Mathers, Michael B. Hintz
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Patent number: 5231062Abstract: This invention provides a transparent aluminum magnesium oxynitride ceramic, wherein greater than 0.5 weight percent of the total ceramic composition is magnesium oxide. The ceramic article of the present invention is useful in applications where it is desirable to have a transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.Type: GrantFiled: August 9, 1990Date of Patent: July 27, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: James P. Mathers, Robert G. Frey
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Patent number: 5096862Abstract: This invention provides a transparent ceramic article comprising aluminum oxide and aluminum magnesium oxynitride. The ceramic article of the present invention is useful in applications where it is desirable to have an optically transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.Type: GrantFiled: August 9, 1990Date of Patent: March 17, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: James P. Mathers, Robert G. Frey