Patents by Inventor James G. Bentsen
James G. Bentsen 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: 7094902Abstract: Electroactive polymeric arylenes and intermediates useful for making such polymers are disclosed. The present invention also provides electroactive compositions comprising the electroactive polymeric arylenes, organic electronic devices which comprise these polymers and compositions, and methods of fabricating these devices.Type: GrantFiled: September 25, 2002Date of Patent: August 22, 2006Assignee: 3M Innovative Properties CompanyInventors: Ralph R. Roberts, James G. Bentsen, Yingbo Li
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Patent number: 7060419Abstract: A process for producing microfluidic articles comprises (a) preparing a photoreactive composition comprising (1) at least one reactive species that is a polymer or a polymer precursor and that is capable of undergoing an acid- or radical-initiated chemical reaction and (2) at least one multiphoton photoinitiator system; (b) exposing a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby forming exposed and unexposed portions of the composition, and thereby inducing at least one acid- or radical-initiated chemical reaction in the exposed portion; and (c) removing either the exposed or the unexposed portion of the composition, so as to form a microfluidic article comprising a seamless polymer matrix that defines at least one inlet, at least one outlet, and a microfluid processing architecture that is capable of fluidic communication with the inlet and the outlet and that is otherwise fully enclosed within the polymer matrix.Type: GrantFiled: June 14, 2001Date of Patent: June 13, 2006Assignee: 3M Innovative Properties CompanyInventors: James G. Bentsen, Robert J. DeVoe, Todd R. Williams
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Patent number: 7014978Abstract: In one method of making an organic electroluminescent device, a transfer layer is solution coated on a donor substrate. The transfer layer includes an amorphous, non-polymeric, organic matrix with a light emitting material disposed in the matrix. The transfer layer is then selectively patterned on a receptor. Examples of patterning methods include laser thermal transfer or thermal head transfer. The method and associated materials can be used to form, for example, organic electroluminescent devices.Type: GrantFiled: December 10, 2003Date of Patent: March 21, 2006Assignee: 3M Innovative Properties CompanyInventors: Erika Bellmann, James G. Bentsen, Yong Hsu, Manoj Nirmal, Martin B. Wolk
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Publication number: 20040214036Abstract: Compounds and compositions are provided that can be used as electron transport agents in organic electronic devices such as organic electroluminescent devices. The compounds are non-polymeric and have an aromatic core conjugated to end capping groups. The aromatic core contains a phenylene group arylene or naphthalene group arylene having a pendant heteroaryl group that includes a —C═N— unit.Type: ApplicationFiled: April 15, 2003Publication date: October 28, 2004Applicant: 3M Innovative Properties CompanyInventors: James G. Bentsen, Nicholas P. Goplen, Yingbo Li, Ralph R. Roberts
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Patent number: 6761962Abstract: The present invention provides various microfluid processing architecture-bearing, polymeric articles. The articles may include microelectronic, microoptical or microchemical elements. The article also may include inorganic thin film coatings.Type: GrantFiled: March 27, 2002Date of Patent: July 13, 2004Assignee: 3M Innovative Properties CompanyInventors: James G. Bentsen, Raymond P. Johnston, Rolf W. Biernath, Richard J. Poirier, Donald J. McClure
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Publication number: 20040121068Abstract: In one method of making an organic electroluminescent device, a transfer layer is solution coated on a donor substrate. The transfer layer includes an amorphous, non-polymeric, organic matrix with a light emitting material disposed in the matrix. The transfer layer is then selectively patterned on a receptor. Examples of patterning methods include laser thermal transfer or thermal head transfer. The method and associated materials can be used to form, for example, organic electroluminescent devices.Type: ApplicationFiled: December 10, 2003Publication date: June 24, 2004Applicant: 3M Innovative Properties CompanyInventors: Erika Bellmann, James G. Bentsen, Yong Hsu, Manoj Nirmal, Martin B. Wolk
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Patent number: 6750266Abstract: A multiphoton-activatable, photoreactive composition comprises: (a) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction; (b) a photochemically-effective amount of a multiphoton photosensitizer comprising at least one multiphoton up-converting inorganic phosphor; and (c) a photochemically-effective amount of a one-photon photoinitiator system that is capable of being photosensitized by the multiphoton photosensitizer.Type: GrantFiled: December 28, 2001Date of Patent: June 15, 2004Assignee: 3M Innovative Properties CompanyInventors: James G. Bentsen, Robert J. DeVoe, Michael C. Palazzotto
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Publication number: 20040062930Abstract: Electroactive polymeric arylenes and intermediates useful for making such polymers are disclosed. The present invention also provides electroactive compositions comprising the electroactive polymeric arylenes, organic electronic devices which comprise these polymers and compositions, and methods of fabricating these devices.Type: ApplicationFiled: September 25, 2002Publication date: April 1, 2004Applicant: 3M Innovative Properties CompanyInventors: Ralph R. Roberts, James G. Bentsen, Yingbo Li
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Publication number: 20040042937Abstract: A process for producing microfluidic articles comprises (a) preparing a photoreactive composition comprising (1) at least one reactive species that is a polymer or a polymer precursor and that is capable of undergoing an acid- or radical-initiated chemical reaction and (2) at least one multiphoton photoinitiator system; (b) exposing a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby forming exposed and unexposed portions of the composition, and thereby inducing at least one acid- or radical-initiated chemical reaction in the exposed portion; and (c) removing either the exposed or the unexposed portion of the composition, so as to form a microfluidic article comprising a seamless polymer matrix that defines at least one inlet, at least one outlet, and a microfluid processing architecture that is capable of fluidic communication with the inlet and the outlet and that is otherwise fully enclosed within the polymer matrix.Type: ApplicationFiled: December 12, 2002Publication date: March 4, 2004Inventors: James G Bentsen, Robert J DeVoe, Todd R Williams
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Patent number: 6699597Abstract: In one method of making an organic electroluminescent device, a transfer layer is solution coated on a donor substrate. The transfer layer includes an amorphous, non-polymeric, organic matrix with a light emitting material disposed in the matrix. The transfer layer is then selectively patterned on a receptor. Examples of patterning methods include laser thermal transfer or thermal head transfer. The method and associated materials can be used to form, for example, organic electroluminescent devices.Type: GrantFiled: August 16, 2001Date of Patent: March 2, 2004Assignee: 3M Innovative Properties CompanyInventors: Erika Bellmann, James G. Bentsen, Yong Hsu, Nirmal Manoj, Martin B. Wolk
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Patent number: 6696286Abstract: A method for detecting a microorganism in a test sample is described. The method involves distributing microvolumes of a sample to a plurality of microcompartments of a culture device, incubating for a time sufficient to permit at least one cell division cycle of the microorganism, then detecting the presence or absence of the microorganism in the microcompartments. Also disclosed are devices for carrying out these methods.Type: GrantFiled: February 1, 2000Date of Patent: February 24, 2004Assignee: 3M Innovative Properties CompanyInventors: Kurt J. Halverson, Ai-Ping Wei, Jean Qiu, Clyde D. Calhoun, James G. Berg, James G. Bentsen, Raymond P. Johnston
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Patent number: 6664111Abstract: Sensing elements, sensor systems and methods for determining the concentration of oxygen and oxygen-related analytes in a medium are provided. The sensing element comprises a solid polymeric matrix material that is permeable to oxygen or an oxygen related analyte and an indicator that is covalently bonded to the solid polymeric matrix material. The indicator is a luminescent platinum group metal polyaromatic chelate complex capable of having its luminescence quenched by the presence of oxygen. The polyaromatic complex comprises three ligands, at least one of which is a bidentate diphenylphenanthroline. The polyaromatic complex is distributed substantially homogenously throughout the matrix material and is covalently bonded to the matrix material via a linker arm. The linker arm is attached to a phenyl group of a diphenylphenanthroline ligand and to the backbone of the polymeric matrix material.Type: GrantFiled: August 22, 2001Date of Patent: December 16, 2003Assignee: 3M Innovative Properties CompanyInventors: James G. Bentsen, Ralph R. Roberts, Orlin B. Knudson, Daniel Alvarez, Jr., Michael J. Rude
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Publication number: 20030224205Abstract: Light emitting polymers can include a plurality of arylene monomeric units and a plurality of soft segment units independently selected from soft segment end caps; soft segment side chains coupled to a portion, but not all, of the arylene monomeric units; internal soft segment monomeric units; and combinations thereof. These light emitting polymers can be used in forming electroluminescent devices or other articles.Type: ApplicationFiled: October 31, 2002Publication date: December 4, 2003Applicant: 3M Innovative Properties CompanyInventors: Yingbo Li, John P. Baetzold, Terence D. Spawn, Ralph R. Roberts, James G. Bentsen, John S. Staral
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Publication number: 20030219625Abstract: The invention provides compositions, organic electronic devices, and methods for preparing organic electronic devices. The compositions include a small molecule that is combined with at least one other material selected from a charge transporting material, a charge blocking material, a light emitting material, a color conversion material, or a combination thereof. The first compound has an aromatic core and two to four identical end capping groups attached to the aromatic core. The second compound has at least some structural similarities to the first compound of the composition.Type: ApplicationFiled: April 15, 2003Publication date: November 27, 2003Applicant: 3M Innovative Properties CompanyInventors: Martin B. Wolk, James G. Bentsen, Ralph R. Roberts, John S. Staral, Yingbo Li
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Publication number: 20030139484Abstract: A multiphoton-activatable, photoreactive composition comprises: (a) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction; (b) a photochemically-effective amount of a multiphoton photosensitizer comprising at least one multiphoton up-converting inorganic phosphor; and (c) a photochemically-effective amount of a one-photon photoinitiator system that is capable of being photosensitized by the multiphoton photosensitizer.Type: ApplicationFiled: December 28, 2001Publication date: July 24, 2003Applicant: 3M Innovative Properties CompanyInventors: James G. Bentsen, Robert J. DeVoe, Michael C. Palazzotto
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Publication number: 20030099574Abstract: Sensing elements, sensor systems and methods for determining the concentration of oxygen and oxygen-related analytes in a medium are provided. The sensing element comprises a solid polymeric matrix material that is permeable to oxygen or an oxygen related analyte and an indicator that is covalently bonded to the solid polymeric matrix material. The indicator is a luminescent platinum group metal polyaromatic chelate complex capable of having its luminescence quenched by the presence of oxygen The polyaromatic complex comprises three ligands, at least one of which is a bidentate diphenylphenanthroline. The polyaromatic complex is distributed substantially homogenously throughout the matrix material and is covalently bonded to the matrix material via a linker arm. The linker arm is attached to a phenyl group of a diphenylphenanthroline ligand and to the backbone of the polymeric matrix material.Type: ApplicationFiled: August 22, 2001Publication date: May 29, 2003Inventors: James G. Bentsen, Ralph R. Roberts, Orlin B. Knudson, Daniel Alvarez, Michael J. Rude
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Publication number: 20030068525Abstract: In one method of making an organic electroluminescent device, a transfer layer is solution coated on a donor substrate. The transfer layer includes an amorphous, non-polymeric, organic matrix with a light emitting material disposed in the matrix. The transfer layer is then selectively patterned on a receptor. Examples of patterning methods include laser thermal transfer or thermal head transfer. The method and associated materials can be used to form, for example, organic electroluminescent devices.Type: ApplicationFiled: August 16, 2001Publication date: April 10, 2003Applicant: 3M Innovative Properties CompanyInventors: Erika Bellmann, James G. Bentsen, Yong Hsu, Nirmal Manoj, Martin B. Wolk
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Publication number: 20030064248Abstract: In a method of making an organic electroluminescent device, a transfer layer is solution coated on a donor substrate. The transfer layer includes a polymerizable, amorphous matrix with a light emitting material disposed in the matrix. The transfer layer is then selectively patterned on a receptor. The polymerizable, amorphous matrix is then polymerized. Examples of patterning methods include laser thermal transfer or thermal head transfer. The method and associated materials can be used to form, for example, organic electroluminescent devices.Type: ApplicationFiled: July 30, 2002Publication date: April 3, 2003Inventors: Martin B. Wolk, Erika Bellmann, Yingbo Li, Ralph R. Roberts, James G. Bentsen
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Publication number: 20020098124Abstract: The present invention provides various microfluid processing architecture-bearing, polymeric articles. The articles may include microelectronic, microoptical or microchemical elements. The article also may include inorganic thin film coatings.Type: ApplicationFiled: March 27, 2002Publication date: July 25, 2002Applicant: 3M Innovative Properties CompanyInventors: James G. Bentsen, Raymond P. Johnston, Rolf W. Biernath, Richard J. Poirier, Donald J. McClure
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Patent number: 6375871Abstract: A process for preparing a molded article that includes: (a) bringing a moldable material and an open molding tool comprising a molding surface into line contact with each other to imprint a microfluid processing architecture pattern onto the moldable material and thereby form a molded article; and (b) separating the molded article from said molding surface. The invention also features various microfluid processing architecture-bearing, polymeric articles.Type: GrantFiled: June 18, 1998Date of Patent: April 23, 2002Assignee: 3M Innovative Properties CompanyInventors: James G. Bentsen, Raymond P. Johnston, Rolf W. Biernath, Richard J. Poirier