Patents by Inventor Valentin Kahl
Valentin Kahl 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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Publication number: 20240141274Abstract: The invention relates to a tilting device for microscopy, comprising a sample carrier mount and an optical component with an optical axis, where the optical axis is aligned with respect to a base side of the sample carrier mount, where the sample carrier mount and the optical component are mounted to be tiltable, and where the alignment of the optical axis with respect to of the base side of the sample carrier mount is maintained when the sample carrier mount and the optical component are tilted.Type: ApplicationFiled: July 17, 2023Publication date: May 2, 2024Inventor: Valentin KAHL
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Patent number: 9927421Abstract: The invention relates to a sample chamber for testing samples, comprising a bottom plate and a cover plate connected thereto, a sample reservoir for receiving a liquid and/or a sample to be tested, and a contact electrode which is arranged entirely in the bottom plate, in the cover plate or between the bottom plate and the cover plate and which is electrically conductively connected to a conductor element or semiconductor element disposed in and/or on the sample chamber, wherein the bottom plate and/or the cover plate are designed in such a way that an electrical contact with the contact electrode can be established from the outside in such a way that an electrically conductive connection to the conductor element or to the semiconductor element can be established from the outside through the bottom plate or through the cover plate via the contact electrode.Type: GrantFiled: September 23, 2009Date of Patent: March 27, 2018Assignee: IBIDI GMBHInventors: Roman Zantl, Valentin Kahl
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Patent number: 9597688Abstract: The invention relates to polymer substrates which are provided with fluorescence features and in which photochemical fluorescence features, i.e. fluorescent structures, are produced by UV irradiation. Thus, fluorophores can be produced in polymer substrates with a low inherent fluorescence by means of suitable UV radiation, which fluorophores display a marked and detectable emission upon being excited with light of a suitable wavelength. If such an irradiation is implemented in a structured manner, emission patterns can be produced in this way in polymer substrates, which emission patterns can be applied for example as recovery grids in fluorescence microscopy. A further application field relates to product authentication which is made possible by the polymer substrates according to the invention provided with fluorescence features.Type: GrantFiled: September 7, 2010Date of Patent: March 21, 2017Assignee: ibidi GmbHInventors: Thomas Fischer, Joachim Stumpe, Valentin Kahl
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Patent number: 9242409Abstract: The invention comprises a method of manufacturing a sample chamber, comprising the steps of: providing a first (20) and a second (30) component, the first component (20) comprising an elastomer; treating the elastomer in the region of a contact surface of the first component (20) and/or treating a contact surface of the second component (30) with a plasma, with plasma waste gas, and/or with a reactive gas; and connecting the contact surface of the first component (20) with the contact surface of the second component (30).Type: GrantFiled: June 13, 2013Date of Patent: January 26, 2016Assignee: ibidi GmbHInventors: Valentin Kahl, Elias Horn
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Publication number: 20140162350Abstract: The invention comprises a method of manufacturing a sample chamber, comprising the steps of: providing a first (20) and a second (30) component, the first component (20) comprising an elastomer; treating the elastomer in the region of a contact surface of the first component (20) and/or treating a contact surface of the second component (30) with a plasma, with plasma waste gas, and/or with a reactive gas; and connecting the contact surface of the first component (20) with the contact surface of the second component (30).Type: ApplicationFiled: June 13, 2013Publication date: June 12, 2014Inventors: Valentin Kahl, Elias Horn
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Patent number: 8470110Abstract: The invention relates to a sample chamber with a cover plate and a bottom plate which is joined thereto in a fixed manner, wherein a recess is provided in the cover plate so that a reservoir is formed by the bottom plate, wherein a planar element with holes is provided in the reservoir, wherein the holes have a predetermined arrangement and/or size.Type: GrantFiled: July 31, 2006Date of Patent: June 25, 2013Assignee: ibidi GmbHInventors: Johan-Valentin Kahl, Roman Zantl
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Patent number: 8263391Abstract: The invention relates to a specimen carrier for the study of cell growth, comprising a substrate with a reservoir with a bottom, wherein the reservoir is filled up to a predetermined height of the side wall, which is smaller than the complete height of the reservoir, with a carrier material for cell growth and the side wall of the reservoir is formed such that a predetermined contact angle of the carrier material can be adjusted with respect to the side wall.Type: GrantFiled: July 19, 2007Date of Patent: September 11, 2012Assignee: ibidi GmbHInventors: Roman Zantl, Valentin Kahl
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Patent number: 8162357Abstract: A microfluid system includes at least one flow-through volume, and at least one connector connected to the flow-through volume. The microfluid system includes a structured surface having at least one elevation. Each elevation is a tapered elevation. Each connector is formed in a respective elevation and is configured as a tapered recess.Type: GrantFiled: February 28, 2003Date of Patent: April 24, 2012Assignee: ibidi GmbHInventor: Johan-Valentin Kahl
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Patent number: 8001857Abstract: A sample chamber of plastics has at least one receiving area for receiving a liquid, and includes an oleophobic layer in a predetermined surface area. The sample chamber includes a base plate and a cover plate firmly connected thereto. The oleophobic layer is disposed on a side of the base plate and the cover plate facing away from the receiving areas, and/or the sample chamber consists of a plastic body and the oleophobic layer is disposed on a side of the plastic body facing away from the receiving areas.Type: GrantFiled: June 20, 2008Date of Patent: August 23, 2011Assignee: ibidi GmbHInventor: Valentin Kahl
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Publication number: 20110086420Abstract: The invention relates to polymer substrates which are provided with fluorescence features and in which photochemical fluorescence features, i.e. fluorescent structures, are produced by UV irradiation. Thus, fluorophores can be produced in polymer substrates with a low inherent fluorescence by means of suitable UV radiation, which fluorophores display a marked and detectable emission upon being excited with light of a suitable wavelength. If such an irradiation is implemented in a structured manner, emission patterns can be produced in this way in polymer substrates, which emission patterns can be applied for example as recovery grids in fluorescence microscopy. A further application field relates to product authentication which is made possible by the polymer substrates according to the invention provided with fluorescence features.Type: ApplicationFiled: September 7, 2010Publication date: April 14, 2011Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., ibidi GmbHInventors: Thomas Fischer, Joachim Stumpe, Valentin Kahl
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Patent number: 7799282Abstract: The present invention relates to a sample chamber for a liquid, wherein at least one part in the interior of the sample chamber comprises a fluid-absorbent and/or fluid-permeable plastic, which is essentially degasified in at least one area and/or in which a predetermined fluid and/or predetermined solid is stored in soluble form in at least one area.Type: GrantFiled: January 13, 2004Date of Patent: September 21, 2010Assignee: ibidi GmbHInventors: Johan-Valentin Kahl, Roman Zantl
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Publication number: 20100175488Abstract: The invention relates to a sample chamber with a cover plate and a bottom plate which is joined thereto in a fixed manner, wherein a recess is provided in the cover plate so that a reservoir is formed by the bottom plate, wherein a planar element with holes is provided in the reservoir, wherein the holes have a predetermined arrangement and/or size.Type: ApplicationFiled: July 31, 2006Publication date: July 15, 2010Inventors: Johan-Valentin Kahl, Roman Zantl
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Publication number: 20100081189Abstract: The invention relates to a sample chamber for testing samples, comprising a bottom plate and a cover plate connected thereto, a sample reservoir for receiving a liquid and/or a sample to be tested, and a contact electrode which is arranged entirely in the bottom plate, in the cover plate or between the bottom plate and the cover plate and which is electrically conductively connected to a conductor element or semiconductor element disposed in and/or on the sample chamber, wherein the bottom plate and/or the cover plate are designed in such a way that an electrical contact with the contact electrode can be established from the outside in such a way that an electrically conductive connection to the conductor element or to the semiconductor element can be established from the outside through the bottom plate or through the cover plate via the contact electrode.Type: ApplicationFiled: September 23, 2009Publication date: April 1, 2010Applicant: IBIDI GMBHInventors: Roman Zantl, Valentin Kahl
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Patent number: 7582264Abstract: The invention relates to a device for microfluid analyses for a substrate with plane base surface and cover surface, wherein a chamber is integrated in the substrate for receiving liquid with at least two admissions and a semipermeable or permeable membrane is arranged in the chamber, wherein the chamber is subdivided by the membrane into two sectional chambers with at least one admission each.Type: GrantFiled: October 4, 2004Date of Patent: September 1, 2009Assignee: ibidi GmbHInventors: Johan-Valentin Kahl, Roman Zantl
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Patent number: 7517499Abstract: A flow chamber (1) made of plastics as an object carrier for light-microscopic examinations comprised at least one channel (4) in a base plate (2), said channel having a width of 0.01 to 20 mm and a height of 0.01 to 5 mm. One liquid reservoir (3, 3?) each is connected to the inlet and outlet opening (6, 6?) of the channel, whereby a communicating system is generated. The bottom and/or the cover of this chamber is made of a high-class plastic material and may be functionalized. The inlet and outlet portions of the channel may be formed by a rounding (7) of the channel edges or by a surface treatment in a manner that drop formation is prevented and the flow is therefore not obstructed.Type: GrantFiled: September 25, 2002Date of Patent: April 14, 2009Assignee: Ibidi GmbHInventor: Johan-Valentin Kahl
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Publication number: 20080314167Abstract: The invention relates to a sample chamber of plastics with at least one receiving area for receiving a liquid, wherein the sample chamber comprises a hydrophilic and/or an oleophobic layer in a predetermined surface area.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Inventor: Valentin Kahl
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Publication number: 20080020455Abstract: The invention relates to a specimen carrier for the study of cell growth, comprising a substrate with a reservoir with a bottom, wherein the reservoir is filled up to a predetermined height of the side wall, which is smaller than the complete height of the reservoir, with a carrier material for cell growth and the side wall of the reservoir is formed such that a predetermined contact angle of the carrier material can be adjusted with respect to the side wall.Type: ApplicationFiled: July 19, 2007Publication date: January 24, 2008Applicant: ibidi GmbHInventors: Roman Zantl, Valentin Kahl
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Publication number: 20070272000Abstract: The invention relates to a device for microfluid analyses for a substrate with plane base surface and cover surface, wherein a chamber is integrated in the substrate for receiving liquid with at least two admissions and a semipermeable or permeable membrane is arranged in the chamber, wherein the chamber is subdivided by the membrane into two sectional chambers with at least one admission each.Type: ApplicationFiled: October 4, 2004Publication date: November 29, 2007Inventors: Johan-Valentin Kahl, Roman Zanti
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Patent number: 7204922Abstract: The present invention provides a method for the electrophoretic separation of particles, especially of macromolecules, comprising the steps of applying the particles to be separated on a substrate supported membrane, such that the particles are mobile across the surface of the substrate supported membrane; providing an electrical field such that electrical fields are formed along the surface across which the particles are mobile; and temporarily modifying the electrical field and/or adding a substrate supported membrane having a structured surface, wherein the direction and/or the strength of the electrical field are temporarily modified and/or wherein the substrate supported membrane is structured so that a force is acting on the particles that leads to a movement depending on the length of the particles. Moreover, a substrate is provided, in particular, for supporting a membrane during the performing of the inventive methods, that comprises an optically transparent material.Type: GrantFiled: July 26, 1999Date of Patent: April 17, 2007Inventors: Johan-Valentin Kahl, Julia Nissen, Joachim Rädler, Roman Zantl, Berenike Maier, Ulf Rädler, Andres Hohner, Reinhard Galneder
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Publication number: 20060239865Abstract: The present invention relates to a sample chamber for a liquid, wherein at least one part in the interior of the sample chamber comprises a fluid-absorbent and/or fluid-permeable plastic, which is essentially degasified in at least one area and/or in which a predetermined fluid and/or predetermined solid is stored in soluble form in at least one area.Type: ApplicationFiled: January 13, 2004Publication date: October 26, 2006Inventors: Johan-Valentin Kahl, Roman Zantl