Patents by Inventor Michael Bufler
Michael Bufler 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: 11357891Abstract: Collagen matrix granulate blend, and process for making and using a collagen matrix or granulate blend including collagen and particles of a biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and having its total external surface covered by at least one closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP is transformed from the CAP on the external surface of the sintered CAP core has a non-homogeneous external surface comprising individual clusters of flat crystal platelets consisting of epitactically grown HAP nanocrystals and coarse areas between the individual clusters, whereby the percentage of the coarse areas between the individual clusters as measured by SEM is at least 20% of the total surface.Type: GrantFiled: June 12, 2020Date of Patent: June 14, 2022Assignee: Geistlich Pharma AGInventors: Claudio Zihlmann, Michael Bufler
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Patent number: 11351287Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets, which shows an enhanced osteogenic response, a method of promoting bone formation, bone regeneration and/or bone repair by implanting the biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material, and a process of preparation thereof.Type: GrantFiled: December 14, 2018Date of Patent: June 7, 2022Assignee: Geistlich Pharma AGInventors: Claudio Zihlmann, Michael Bufler
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Patent number: 10960107Abstract: A collagen matrix, granulate blend, and process for making and using a collagen matrix or granulate blend including collagen and particles or granules of a biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material comprising a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets.Type: GrantFiled: June 12, 2020Date of Patent: March 30, 2021Assignee: Geistlich Pharma AGInventors: Claudio Zihlmann, Michael Bufler
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Publication number: 20200390934Abstract: A collagen matrix, granulate blend, and process for making and using a collagen matrix or granulate blend including collagen and particles or granules of a biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material comprising a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets.Type: ApplicationFiled: June 12, 2020Publication date: December 17, 2020Applicant: GEISTLICH PHARMA AGInventors: Claudio ZIHLMANN, Michael BUFLER
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Publication number: 20200390939Abstract: Collagen matrix granulate blend, and process for making and using a collagen matrix or granulate blend including collagen and particles of a biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and having its total external surface covered by at least one closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP is transformed from the CAP on the external surface of the sintered CAP core has a non-homogeneous external surface comprising individual clusters of flat crystal platelets consisting of epitactically grown HAP nanocrystals and coarse areas between the individual clusters, whereby the percentage of the coarse areas between the individual clusters as measured by SEM is at least 20% of the total surface.Type: ApplicationFiled: June 12, 2020Publication date: December 17, 2020Applicant: GEISTLICH PHARMA AGInventors: Claudio ZIHLMANN, Michael BUFLER
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Patent number: 10646619Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and at least one closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a non-homogeneous external surface comprising individual clusters of flat crystal platelets consisting of epitactically grown HAP nanocrystals and coarse areas between the individual clusters, whereby the percentage of the coarse areas between the individual clusters as measured by SEM is at least 20% of the total surface, which material shows an increased capacity to induce bone formation, and a process of preparation thereof.Type: GrantFiled: December 14, 2018Date of Patent: May 12, 2020Assignee: GEISTLICH PHARMA AGInventors: Claudio Zihlmann, Michael Bufler
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Patent number: 10646615Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets, which shows an enhanced osteogenic response, a method of promoting bone formation, bone regeneration and/or bone repair by implanting the biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material, and a process of preparation thereof.Type: GrantFiled: September 25, 2019Date of Patent: May 12, 2020Assignee: Geistlich Pharma AGInventors: Claudio Zihlmann, Michael Bufler
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Publication number: 20200016293Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets, which shows an enhanced osteogenic response, a method of promoting bone formation, bone regeneration and/or bone repair by implanting the biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material, and a process of preparation thereof.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Applicant: GEISTLICH PHARMA AGInventors: Claudio ZIHLMANN, Michael BUFLER
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Publication number: 20190209737Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and at least one closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, whereby the epitactically grown nanocrystals have the same size and morphology as human bone mineral, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a non-homogeneous external surface comprising individual clusters of flat crystal platelets consisting of epitactically grown HAP nanocrystals and coarse areas between the individual clusters, whereby the percentage of the coarse areas between the individual clusters as measured by SEM is at least 20% of the total surface, which material shows an increased capacity to induce bone formation, and a process of preparation thereof.Type: ApplicationFiled: December 14, 2018Publication date: July 11, 2019Applicant: GEISTLICH PHARMA AGInventors: Claudio Zihlmann, Michael Bufler
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Publication number: 20190184059Abstract: A biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material having a sintered CAP core and a closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core, wherein the closed epitactically grown layer of nanocrystalline HAP deposited on the external surface of the sintered CAP core has a homogeneous coarse external surface comprising flat crystal platelets, which shows an enhanced osteogenic response, a method of promoting bone formation, bone regeneration and/or bone repair by implanting the biphasic calcium phosphate/hydroxyapatite (CAP/HAP) bone substitute material, and a process of preparation thereof.Type: ApplicationFiled: December 14, 2018Publication date: June 20, 2019Applicant: GEISTLICH PHARMA AGInventors: Claudio ZIHLMANN, Michael BUFLER
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Patent number: 10029028Abstract: The invention relates to: —a biomimetic collagen-hydroxyapatite composite material comprising an at least partially fibrous collagen scaffold including mature native collagen fibers possessing triple helicity as shown by Circular Dichroism Spectroscopy, wherein those mature native collagen fibers are at least partially covered with epitactically grown crystals of nanocrystalline hydroxyapatite, whereby the epitactically grown nanocrystals have the same morphology as human bone mineral and the same size as human bone mineral, i.e.Type: GrantFiled: July 18, 2014Date of Patent: July 24, 2018Assignee: Geistlich Pharma AGInventor: Michael Bufler
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Publication number: 20160144071Abstract: The invention relates to: a biomimetic collagen-hydroxyapatite composite material comprising an at least partially fibrous collagen scaffold including mature native collagen fibers possessing triple helicity as shown by Circular Dichroism Spectroscopy, wherein those mature native collagen fibers are at least partially covered with epitactically grown crystals of nanocrystalline hydroxyapatite, whereby the epitactically grown nanocrystals have the same morphology as human bone mineral and the same size as human bone mineral, i.e.Type: ApplicationFiled: July 18, 2014Publication date: May 26, 2016Applicant: GEISTLICH PHARMA AGInventor: Michael BUFLER
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Publication number: 20150182556Abstract: The invention provides: —A hydrophilic dehydrated partially purified bone replacement material of natural origin, wherein substantially all non-collagenous organic material is removed while inorganic, porous osseous structure and collagenous structure of natural bone are substantially preserved, characterized in that the bone replacement material contains 0.05 to 1.5 w/w % of at least one of a saccharide or a sugar alcohol, and 0.7 to 5.6 w/w % of a phosphate group selected from the group consisting of phosphate HPO42? and H2PO4?, this phosphate group being part of a physiologically acceptable salt and—a process for preparing a hydrophilic dehydrated partially purified bone replacement material.Type: ApplicationFiled: July 29, 2013Publication date: July 2, 2015Applicant: GEISTLICH PHARMA AGInventors: Cornel Imhof, Lothar Schlösser, Birgit Schäfer, Michael Bufler