Patents by Inventor Christian Ziegmann
Christian Ziegmann 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: 9346045Abstract: An electrically conductive pipette tip having an elongated tubular body that has a bottom opening at the bottom end for the passage of liquid, and a top opening at the top end for the passage of air, and a passageway between the bottom opening and the top opening, wherein the body has at least one electrically-conductive region extending from the bottom opening to the top opening, and at least one transparent region consisting of plastic that extends from the passageway to the outside of the body.Type: GrantFiled: September 25, 2010Date of Patent: May 24, 2016Assignee: EPPENDORF AGInventors: Michael Blumentritt, Nico Gülzow, Thomas Reimann, Christian Ziegmann, Matthias Haak
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Patent number: 9138741Abstract: Filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter arranged in the through-channel, filling up a portion of the through-channel and comprising at least two layers arranged in series in the direction of the through-channel of which a fine-pore layer has a pore size of a maximum of approximately 20 ?m and a coarse-pore layer a pore size of approximately 20 to 50 ?m, the two layers having different pore sizes.Type: GrantFiled: February 29, 2012Date of Patent: September 22, 2015Assignee: Eppendorf AGInventors: Christian Ziegmann, Thomas Reimann
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Publication number: 20130136672Abstract: An electrically conductive pipette tip having an elongated tubular body that has a bottom opening at the bottom end for the passage of liquid, and a top opening at the top end for the passage of air, and a passageway between the bottom opening and the top opening, wherein the body has at least one electrically-conductive region extending from the bottom opening to the top opening, and at least one transparent region consisting of plastic that extends from the passageway to the outside of the body.Type: ApplicationFiled: September 25, 2010Publication date: May 30, 2013Applicant: EPPENDORF AGInventors: Michael Blumentritt, Nico Gülzow, Thomas Reimann, Christian Ziegmann, Matthias Haak
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Publication number: 20120156114Abstract: Filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter arranged in the through-channel, filling up a portion of the through-channel and comprising at least two layers arranged in series in the direction of the through-channel of which a fine-pore layer has a pore size of a maximum of approximately 20 ?m and a coarse-pore layer a pore size of approximately 20 to 50 ?m, the two layers having different pore sizes.Type: ApplicationFiled: February 29, 2012Publication date: June 21, 2012Applicant: EPPENDORF AGInventors: Christian Ziegmann, Thomas Reimann
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Publication number: 20120138673Abstract: Objects having a confusingly similar appearance, e.g., laboratory vessels, are provided with a random or pseudo-random pattern. The pattern can be provided during the manufacture of the object and is formed in a part or on a surface of the object, By way of example, the pattern can be a two-dimensional black/white pattern, an N-dimensional color or gray scale pattern, a one-dimensional emission spectrum with peaks of variable heights or a two-dimensional excitation spectrum with peaks of variable height. At least one section of the pattern is identified, for example, by a photographed imagine of the pattern. The so-identified section is then electronically saved and labeled as a representative of the pattern. The object is then capable of automated recognition by matching the pattern with the previously saved representative section of the identified pattern, Also disclosed is a device configured to translate the identified pattern into an electronic code and then recognize the object by the saved code.Type: ApplicationFiled: August 3, 2011Publication date: June 7, 2012Inventors: Gerd Eckert, Oliver Franz, Kay Körner, Martin Stranzinger, Christian Taesler, Thomas Uschkureit, Daniel Voss, Christian Ziegmann
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Patent number: 8192699Abstract: Filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter arranged in the through-channel, filling up a portion of the through-channel and comprising at least two layers arranged in series in the direction of the through-channel of which a fine-pore layer has a pore size of a maximum of approximately 20 ?m and a coarse-pore layer a pore size of approximately 20 to 50 ?m, the two layers having different pore sizes.Type: GrantFiled: February 3, 2006Date of Patent: June 5, 2012Assignee: Eppendorf AGInventors: Christian Ziegmann, Thomas Reimann
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Publication number: 20110286897Abstract: Microtiter plate made of plastic, having a plurality of wells in a plate which has at least one break line that divides the plate into various segments. The break line includes a joint line which is formed by molding together various segments of the plate.Type: ApplicationFiled: January 31, 2011Publication date: November 24, 2011Applicant: EPPENDORF AGInventors: Thomas Uschkureit, Christian Ziegmann, Hanna Rethwisch, Carsten Koch, Matthias Haak, Martin Seippel, Rainer Juergen Schulz
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Patent number: 7846333Abstract: A porous media, a housing containing a porous media and methods for fabricating the housing containing a porous media are provided. The porous media is composed of varying amounts of sorptive binding particles in combination with polymer particles, for example silica particles mixed with polyethylene beads. The porous media is sintered into target housings, for example pipette tips, for use in desalting, purifying and separating biomolecules in target samples. The porous media is also formed into porous media discs via pressure and heating for insertion into housing devices.Type: GrantFiled: November 18, 2004Date of Patent: December 7, 2010Inventors: Wilhelm Pluester, Christian Ziegmann
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Publication number: 20060177352Abstract: Filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter arranged in the through-channel, filling up a portion of the through-channel and comprising at least two layers arranged in series in the direction of the through-channel of which a fine-pore layer has a pore size of a maximum of approximately 20 ?m and a coarse-pore layer a pore size of approximately 20 to 50 ?m, the two layers having different pore sizes.Type: ApplicationFiled: February 3, 2006Publication date: August 10, 2006Inventors: Christian Ziegmann, Thomas Reimann
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Publication number: 20050178720Abstract: A porous media, a housing containing a porous media and methods for fabricating the housing containing a porous media are provided. The porous media is composed of varying amounts of sorptive binding particles in combination with polymer particles, for example silica particles mixed with polyethylene beads. The porous media is sintered into target housings, for example pipette tips, for use in desalting, purifying and separating biomolecules in target samples. The porous media is also formed into porous media discs via pressure and heating for insertion into housing devices.Type: ApplicationFiled: November 18, 2004Publication date: August 18, 2005Inventors: Wilhelm Pluester, Christian Ziegmann
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Patent number: D679826Type: GrantFiled: January 9, 2006Date of Patent: April 9, 2013Assignee: Eppendorf AGInventors: Christian Ziegmann, Thomas Reimann