Patents by Inventor Paul D. Pennington
Paul D. Pennington 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: 11884550Abstract: Shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, sintered articles prepared from the shaped gel articles, and methods of making the sintered articles are provided. The shaped gel articles are formed from a casting sol that contains colloidal silica particles that are treated with a surface modification composition that includes a silane surface modification agent having a radically polymerizable group. The sintered article has a shape identical to the mold cavity (except in regions where the mold cavity was overfilled) and to the shaped gel article but reduced in size proportional to the amount of isotropic shrinkage.Type: GrantFiled: August 16, 2017Date of Patent: January 30, 2024Assignee: 3M Innovative Properties CompanyInventors: Kathleen M. Humpal, Melissa A. Lackey, Brant U. Kolb, Paul D. Pennington, Mark J. Hendrickson
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Patent number: 11407872Abstract: Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein.Type: GrantFiled: June 14, 2017Date of Patent: August 9, 2022Assignee: 3M Innovative Properties CompanyInventors: Joshua M. Fishman, Caitlin E. Meree, Ning Zhou, Derek J. Dehn, Jacob D. Young, Jeffrey O. Emslander, Bradley L. Givot, Aaron T. Hedegaard, Justin M. Bolton, Terry R. Hobbs, Mahfuza B. Ali, Robert C. Coffin, Brant U. Kolb, Paul D. Pennington, Jimmie R. Baran, Jr., Duane D. Fansler, Ying Lin
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Patent number: 11339095Abstract: The invention relates to the use of a printing sol as construction material in an additive manufacturing process for producing a 3-dim article, the printing sol comprising solvent(s), nano-sized crystalline zirconia particles in an amount from 2 to 25 vol.-% with respect to the volume of the sol, the average primary particle size of the nano-sized crystalline zirconia particles being in a range up to 50 nm, a first monomer being a polymerizable surface modification agent represented by formula A-B, with A being capable of attaching to the surface of the nano-sized crystalline zirconia particles and B being a radiation curable group, optionally a second monomer, the second monomer comprising at least one radiation curable moiety but no acidic or silane group(s), photo initiator(s). The invention also relates to a ceramic article obtainable according to such a process.Type: GrantFiled: May 26, 2016Date of Patent: May 24, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Helmar B. Mayr, Malte Korten, Christine M. Andres, Brant U. Kolb, Holger Hauptmann, Gallus Schechner, Michael Jahns, Kathleen M. Humpal, Melissa A. Lackey, Paul D. Pennington
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Publication number: 20210163362Abstract: Reaction mixtures, gel compositions that are a polymerized product of the reaction mixtures, shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, and sintered articles prepared from the shaped gel articles are provided. The sintered article has a shape identical to the mold cavity (except in regions where the mold cavity was overfilled) and to the shaped articles but reduced in size proportional to the amount of isotropic shrinkage. Methods of forming the sintered articles also are provided.Type: ApplicationFiled: February 16, 2021Publication date: June 3, 2021Inventors: Kathleen M. Humpal, Brant U. Kolb, Melissa A. Lackey, Mark J. Hendrickson, Paul D. Pennington
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Patent number: 10436984Abstract: An optical network comprises a fiber distribution cable and a terminal assembly. The terminal assembly receives a plurality of optical fibers from the fiber distribution cable and distributes one or more individual fibers to one or more single fiber bare-fiber holders that hold and protect each single fiber prepared and configured for splicing via an individual splicing element. The splicing element includes an alignment mechanism having a base plate and a clamp plate. At least one of the base plate and clamp plate is formed from a silica material and at least one of the base plate and clamp plate includes an alignment groove or channel configured to receive the first and second optical fibers in an end-to-end manner. The splice element also comprises an optical adhesive disposed in at least a portion of the alignment groove, wherein the optical adhesive is curable via actinic radiation.Type: GrantFiled: September 5, 2017Date of Patent: October 8, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: William J. Clatanoff, Donald K. Larson, Daniel J. Treadwell, William G. Allen, Raman K. Selli, Victor J. Borer, Kathleen M. Humpal, Melissa A. Lackey, Brant U. Kolb, Paul D. Pennington, Mark J. Hendrickson, Wendy L. Thompson, Wayne S. Mahoney
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Publication number: 20190256677Abstract: Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein.Type: ApplicationFiled: June 14, 2017Publication date: August 22, 2019Inventors: Joshua M. Fishman, Caitlin E. Meree, Ning Zhou, Derek J. Dehn, Jacob D. Young, Jeffrey O. Emslander, Bradley L. Givot, Aaron T. Hedegaard, Justin M. Bolton, Terry R. Hobbs, Mahfuza B. Ali, Robert C. Coffin, Brant U. Kolb, Paul D. Pennington, Jimmie R. Baran, Jr., Duane D. Fansler, Ying Lin
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Publication number: 20190185328Abstract: Shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, sintered articles prepared from the shaped gel articles, and methods of making the sintered articles are provided. The shaped gel articles are formed from a casting sol that contains colloidal silica particles that are treated with a surface modification composition that includes a silane surface modification agent having a radically polymerizable group. The sintered article has a shape identical to the mold cavity (except in regions where the mold cavity was overfilled) and to the shaped gel article but reduced in size proportional to the amount of isotropic shrinkage.Type: ApplicationFiled: August 16, 2017Publication date: June 20, 2019Inventors: Kathleen M. Humpal, Melissa A. Lackey, Brant U. Kolb, Paul D. Pennington, Mark J. Hendrickson
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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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Publication number: 20180127317Abstract: The invention relates to the use of a printing sol as construction material in an additive manufacturing process for producing a 3-dim article, the printing sol comprising solvent(s), nano-sized crystalline zirconia particles in an amount from 2 to 25 vol.-% with respect to the volume of the sol, the average primary particle size of the nano-sized crystalline zirconia particles being in a range up to 50 nm, a first monomer being a polymerizable surface modification agent represented by formula A-B, with A being capable of attaching to the surface of the nano-sized crystalline zirconia particles and B being a radiation curable group, optionally a second monomer, the second monomer comprising at least one radiation curable moiety but no acidic or silane group(s), photo initiator(s). The invention also relates to a ceramic article obtainable according to such a process.Type: ApplicationFiled: May 26, 2016Publication date: May 10, 2018Inventors: Helmar B. Mayr, Malte Korten, Christine M. Andres, Brant U. Kolb, Holger Hauptmann, Gallus Schechner, Michael Jahns, Kathleen M. Humpal, Melissa A. Lackey, Paul D. Pennington
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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: 20180067262Abstract: A splice element for splicing a first and a second optical fiber comprises an alignment mechanism having a base plate and a clamp plate. At least one of the base plate and clamp plate is formed from a silica material and at least one of the base plate and clamp plate includes an alignment groove configured to receive the first and second optical fibers in an end-to-end manner. The splice element also comprises an optical adhesive disposed in at least a portion of the alignment groove, wherein the optical adhesive is curable via actinic radiation.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Inventors: Donald K. Larson, William J. Clatanoff, Daniel J. Treadwell, William G. Allen, Raman K. Selli, Kathleen M. Humpal, Melissa A. Lackey, Brant U. Kolb, Paul D. Pennington, Mark J. Hendrickson, Wendy L. Thompson, Wayne S. Mahoney
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Publication number: 20180067261Abstract: An optical network comprises a fiber distribution cable and a terminal assembly. The terminal assembly receives a plurality of optical fibers from the fiber distribution cable and distributes one or more individual fibers to one or more single fiber bare-fiber holders that hold and protect each single fiber prepared and configured for splicing via an individual splicing element. The splicing element includes an alignment mechanism having a base plate and a clamp plate. At least one of the base plate and clamp plate is formed from a silica material and at least one of the base plate and clamp plate includes an alignment groove or channel configured to receive the first and second optical fibers in an end-to-end manner. The splice element also comprises an optical adhesive disposed in at least a portion of the alignment groove, wherein the optical adhesive is curable via actinic radiation.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Inventors: William J. Clatanoff, Donald K. Larson, Daniel J. Treadwell, William G. Allen, Raman K. Selli, Victor J. Borer, Kathleen M. Humpal, Melissa A. Lackey, Brant U. Kolb, Paul D. Pennington, Mark J. Hendrickson, Wendy L. Thompson, Wayne S. Mahoney
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Publication number: 20180044245Abstract: Reaction mixtures, gel compositions that are a polymerized product of the reaction mixtures, shaped gel articles that are formed within a mold cavity and that retain the size and shape of the mold cavity upon removal from the mold cavity, and sintered articles prepared from the shaped gel articles are provided. The sintered article has a shape identical to the mold cavity (except in regions where the mold cavity was overfilled) and to the shaped articles but reduced in size proportional to the amount of isotropic shrinkage. Methods of forming the sintered articles also are provided.Type: ApplicationFiled: February 24, 2016Publication date: February 15, 2018Inventors: Kathleen M. HUMPAL, Brant U. KOLB, Melissa A. LACKEY, Mark J. HENDRICKSON, Paul D. PENNINGTON
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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