Patents by Inventor Ralf Paehl
Ralf Paehl 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: 11597830Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.Type: GrantFiled: May 21, 2018Date of Patent: March 7, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joachim Zech, Hendrik Grupp, Malte Korten, Ralf Paehl, Dietmar Blees, Gioacchino Raia
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Publication number: 20200131356Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.Type: ApplicationFiled: May 21, 2018Publication date: April 30, 2020Inventors: Joachim Zech, Hendrik Grupp, Malte Korten, Ralf Paehl, Dietmar Blees, Gioacchino Raia
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Patent number: 10219876Abstract: A method of making a customized orthodontic bracket includes steps of providing a pre-manufactured physical bracket body, providing a physical bracket base having a tooth facing side shaped according to of at least part of a patient's tooth, and joining the bracket body and at least a portion of the bracket base. The bracket base is provided using a material build-up process. The invention helps facilitating manufacturing of customized orthodontic brackets.Type: GrantFiled: February 10, 2015Date of Patent: March 5, 2019Assignee: 3M Innovative Properties CompanyInventors: Philip P. Soo, James D. Cleary, Arno Hohmann, Ralf Paehl
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Patent number: 10136965Abstract: A customized orthodontic bracket system is provided. The system can include a bracket having a customized bracket bonding pad for bonding the bracket to a tooth of a patient and a bracket slot adapted to receive a customized archwire. The customized archwire is adapted to be positioned in the bracket slot to form a precise bracket slot-archwire interface. The bracket slot and the archwire when positioned in the bracket slot can be positioned substantially adjacent the tooth surface to reduce induced vertical error in tooth positioning. The bracket slot can be configured to have a bracket slot width substantially matching a cross-section of the archwire to reduce torque rotation around an axis of the archwire when positioned therein to further enhance end-of-treatment tooth positioning and reduce overall treatment time.Type: GrantFiled: August 22, 2014Date of Patent: November 27, 2018Assignee: 3M Innovative Properties CompanyInventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Weise
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Publication number: 20170049534Abstract: A method of making a customized orthodontic bracket includes steps of providing a pre-manufactured physical bracket body, providing a physical bracket base having a tooth facing side shaped according to of at least part of a patient's tooth, and joining the bracket body and at least a portion of the bracket base. The bracket base is provided using a material build-up process. The invention helps facilitating manufacturing of customized orthodontic brackets.Type: ApplicationFiled: February 10, 2015Publication date: February 23, 2017Inventors: Philip P. Soo, James D. Cleary, Arno Hohmann, Ralf Paehl
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Publication number: 20140363782Abstract: A customized orthodontic bracket system is provided. The system can include a bracket having a customized bracket bonding pad for bonding the bracket to a tooth of a patient and a bracket slot adapted to receive a customized archwire. The customized archwire is adapted to be positioned in the bracket slot to form a precise bracket slot-archwire interface. The bracket slot and the archwire when positioned in the bracket slot can be positioned substantially adjacent the tooth surface to reduce induced vertical error in tooth positioning. The bracket slot can be configured to have a bracket slot width substantially matching a cross-section of the archwire to reduce torque rotation around an axis of the archwire when positioned therein to further enhance end-of-treatment tooth positioning and reduce overall treatment time.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Wiese
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Publication number: 20120015315Abstract: A customized orthodontic bracket system is provided. The system can include a bracket having a customized bracket bonding pad for bonding the bracket to a tooth of a patient and a bracket slot adapted to receive a customized archwire. The customized archwire is adapted to be positioned in the bracket slot to form a precise bracket slot-archwire interface. The bracket slot and the archwire when positioned in the bracket slot can be positioned substantially adjacent the tooth surface to reduce induced vertical error in tooth positioning. The bracket slot can be configured to have a bracket slot width substantially matching a cross-section of the archwire to reduce torque rotation around an axis of the archwire when positioned therein to further enhance end-of-treatment tooth positioning and reduce overall treatment time.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Inventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Weise
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Patent number: 8057226Abstract: A customized orthodontic bracket system is provided. The system can include a bracket having a customized bracket bonding pad for bonding the bracket to a tooth of a patient and a bracket slot adapted to receive a customized archwire. The customized archwire is adapted to be positioned in the bracket slot to form a precise bracket slot-archwire interface. The bracket slot and the archwire when positioned in the bracket slot can be positioned substantially adjacent the tooth surface to reduce induced vertical error when the tooth is in a finished position and substantially parallel to the directly adjacent portion of the tooth surface to reduce bracket thickness. The bracket slot can also be configured to have a bracket slot width substantially matching a dimension of a cross-section of the archwire to reduce torque rotation around an axis of the archwire when positioned therein to further enhance end-of-treatment tooth positioning and reduce overall treatment time.Type: GrantFiled: September 18, 2006Date of Patent: November 15, 2011Assignee: 3M Innovative Properties CompanyInventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Weise
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Patent number: 7850451Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: GrantFiled: July 22, 2004Date of Patent: December 14, 2010Assignee: 3M Innovative Properties CompanyInventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Weise
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Patent number: 7811087Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: GrantFiled: May 12, 2004Date of Patent: October 12, 2010Assignee: 3M Innovative Properties CompanyInventors: Dirk Wiechmann, Ralf Paehl, Thomas Weise, Rüdger Rubbert
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Publication number: 20070015104Abstract: A customized orthodontic bracket system is provided. The system can include a bracket having a customized bracket bonding pad for bonding the bracket to a tooth of a patient and a bracket slot adapted to receive a customized archwire. The customized archwire is adapted to be positioned in the bracket slot to form a precise bracket slot-archwire interface. The bracket slot and the archwire when positioned in the bracket slot can be positioned substantially adjacent the tooth surface to reduce induced vertical error in tooth positioning. The bracket slot can be configured to have a bracket slot width substantially matching a cross-section of the archwire to reduce torque rotation around an axis of the archwire when positioned therein to further enhance end-of-treatment tooth positioning and reduce overall treatment time.Type: ApplicationFiled: September 18, 2006Publication date: January 18, 2007Inventors: Dirk Wiechmann, Ralf Paehl, Rudger Rubbert, Thomas Weise
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Publication number: 20050158686Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: ApplicationFiled: May 12, 2004Publication date: July 21, 2005Inventors: Dirk Wiechmann, Ralf Paehl, Thomas Weise, Rudger Rubbert
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Publication number: 20050003321Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: ApplicationFiled: July 22, 2004Publication date: January 6, 2005Inventors: Dirk Wiechmann, Ralf Paehl, Rudger Rubbert, Thomas Weise
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Patent number: 6776614Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: GrantFiled: February 13, 2002Date of Patent: August 17, 2004Assignees: Lingualcare, Inc., T.O.P. Service für Lingualtechnik GmbHInventors: Dirk Wiechmann, Ralf Paehl, Rüdger Rubbert, Thomas Weise
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Publication number: 20030152884Abstract: A set of customized orthodontic brackets are provided with slots that are arranged substantially parallel to the tooth surface. The archwire, in an as-manufactured condition, has a portion of substantial arcuate extent, which is canted relative to the occlusal plane. The brackets are designed on a computer as a combination of three-dimensional virtual objects comprising the virtual bracket bonding pad and a separate virtual bracket body retrieved from a library of virtual bracket bodies. The virtual brackets can be represented as a file containing digital shape data and exported to a rapid prototype fabrication device for fabrication of the bracket in wax or other material and casting the wax prototype in a suitable alloy. Other manufacturing techniques are also contemplated, including milling and laser sintering.Type: ApplicationFiled: February 13, 2002Publication date: August 14, 2003Inventors: Dirk Wiechmann, Ralf Paehl, Rudger Rubbert, Thomas Weise