Patents by Inventor Jeremy E. Dahl
Jeremy E. Dahl 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: 8420768Abstract: Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.Type: GrantFiled: December 20, 2010Date of Patent: April 16, 2013Assignee: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
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Patent number: 8367166Abstract: In some embodiments, the present invention is directed to methods for synthesizing higher diamondoids, wherein said methods involve augmenting existing diamondoid molecules through the bonding of carbon atoms to such existing diamondoid species with intramolecular cross-linking so as to form larger diamondoids containing face-fused diamond-crystal (adamantane) cages with carbon frameworks superimposable on the cubic-diamond crystal lattice.Type: GrantFiled: October 29, 2009Date of Patent: February 5, 2013Assignees: Chevron U.S.A. Inc., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Jeremy E. Dahl, J. Michael Moldowan, Michael A. Kelly, Robert M. Carlson
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Patent number: 8013078Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: GrantFiled: December 14, 2009Date of Patent: September 6, 2011Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Patent number: 7981975Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: GrantFiled: December 14, 2009Date of Patent: July 19, 2011Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Publication number: 20110112258Abstract: Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.Type: ApplicationFiled: December 20, 2010Publication date: May 12, 2011Applicant: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
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Patent number: 7884256Abstract: Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.Type: GrantFiled: December 17, 2004Date of Patent: February 8, 2011Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Patent number: 7795468Abstract: This invention is directed to functionalized higher diamondoids having at least one functional group. Preferably these derivatives have the following Formula I: wherein D is a higher diamondoid nucleus and wherein R1, R2, R3, R4, R5 and R6 are independently selected from a group consisting of hydrogen and functional groups, provided that there is at least one functional group on the derivative. The functionalized higher diamondoid compounds may also be of the formula D—L—(D)n wherein D is a higher diamondoid nucleus and L is a linking group and n is 1 or more. The functionalized higher diamondoid compounds additionally may be of the formula R38—D—D—R39 wherein D is a higher diamondoid nucleus and R38 and R39 are substituents.Type: GrantFiled: December 6, 2002Date of Patent: September 14, 2010Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl, Waqar R. Qureshi
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Publication number: 20100221453Abstract: Diamonds are used to nucleate diamond and diamond-like carbon films in a chemical vapor deposition process using bias enhancement. A negative bias is applied to the substrate, such that a cationic form of the diamond is accelerated toward the substrate during the nucleation phase of the deposition. In this manner, the diamondoid may be embedded or partially embedded in the substrate and/or growing film, increasing the adhesion of the film to the substrate. According to the present embodiments, it is not necessary to mechanically pre-seed the substrate for nucleation purposes.Type: ApplicationFiled: May 20, 2010Publication date: September 2, 2010Applicant: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu, Waqar R. Queshi, Wasiq Bokhari
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Publication number: 20100190985Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: ApplicationFiled: December 14, 2009Publication date: July 29, 2010Applicant: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Publication number: 20100112214Abstract: In some embodiments, the present invention is directed to methods for synthesizing higher diamondoids, wherein said methods involve augmenting existing diamondoid molecules through the bonding of carbon atoms to such existing diamondoid species with intramolecular cross-linking so as to form larger diamondoids containing face-fused diamond-crystal (adamantane) cages with carbon frameworks superimposable on the cubic-diamond crystal lattice.Type: ApplicationFiled: October 29, 2009Publication date: May 6, 2010Applicants: Chevron U.S.A. Inc., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Jeremy E. Dahl, J. Michael Moldowan, Michael A. Kelly, Robert M. Carlson
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Publication number: 20100094012Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: ApplicationFiled: December 14, 2009Publication date: April 15, 2010Applicant: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Patent number: 7649056Abstract: This invention is related to heteroatom containing diamondoids (i.e., “heterodiamondoids”) which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.Type: GrantFiled: January 18, 2006Date of Patent: January 19, 2010Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl
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Publication number: 20090075203Abstract: Novel positive-working photoresist compositions are disclosed. The monomers of the base resin of the resist contain diamondoid-containing pendant groups higher than adamantane in the polymantane series; for example, diamantane, triamantane, tetramantane, pentamantane, hexamantane, etc. The diamondoid-containing pendant group may have hydrophilic-enhancing substituents such as a hydroxyl group, and may contain a lactone group. Advantages of the present compositions include enhanced resolution, sensitivity, and adhesion to the substrate.Type: ApplicationFiled: August 28, 2008Publication date: March 19, 2009Inventors: Shenggao Liu, Jeremy E. Dahl, Robert M. Carlson
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Patent number: 7488565Abstract: Novel positive-working photoresist compositions are disclosed. The monomers of the base resin of the resist contain diamondoid-containing pendant groups higher than adamantane in the polymantane series; for example, diamantane, triamantane, tetramantane, pentamantane, hexamantane, etc. The diamondoid-containing pendant group may have hydrophilic-enhancing substituents such as a hydroxyl group, and may contain a lactone group. Advantages of the present compositions include enhanced resolution, sensitivity, and adhesion to the substrate.Type: GrantFiled: January 23, 2004Date of Patent: February 10, 2009Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Jeremy E. Dahl, Robert M. Carlson
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Patent number: 7402716Abstract: Novel compounds having a hybrid cubic/hexagonal diamond crystal structure are disclosed. Each of the four compounds have the stoichiometric formula C26H32 and a molecular weight of 344. The four compounds are contemplated to have a utility in diamond film nucleation.Type: GrantFiled: December 8, 2004Date of Patent: July 22, 2008Assignee: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
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Patent number: 7402835Abstract: These heterodiamondoids are diamondoids that include heteroatoms in the diamond lattice structure. The heteroatoms may be either electron donating, such that an n-type heterodiamondoid is created, or electron withdrawing, such that a p-type heterodiamondoid is made. Bulk materials may be fabricated from these heterodiamondoids, and the techniques involved include chemical vapor deposition, polymerization, and crystal aggregation. Junctions may be made from the p-type and n-type heterodiamondoid based materials, and microelectronic devices may be made that utilize these junctions. The devices include diodes, bipolar junction transistors, and field effect transistors.Type: GrantFiled: July 16, 2003Date of Patent: July 22, 2008Assignee: Chevron U.S.A. Inc.Inventors: Shenggao Liu, Jeremy E. Dahl, Robert M. Carlson
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Patent number: 7312562Abstract: Novel heterodiamondoid-containing field emission devices (FED's) are disclosed herein. In one embodiment of the present invention, the heteroatom of the heterodiamondoid comprises an electron-donating species (such as nitrogen) as part of the cathode or electron-emitting component of the field emission device.Type: GrantFiled: January 4, 2005Date of Patent: December 25, 2007Assignee: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
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Patent number: 7309476Abstract: Novel diamondoid-based components that may be used in nanoscale construction are disclosed. Such components include rods, brackets, screws, gears, rotors, and impellers. Subassemblies (or subsystems) may comprise one or more diamondoid components. Exemplary subassemblies include atomic force microscope tips, molecular tachometers and signal waveform generators, and self-assembling cellular membrane pores and channels.Type: GrantFiled: July 16, 2003Date of Patent: December 18, 2007Assignee: Chevron U.S.A. Inc.Inventors: Robert M. Carlson, Jeremy E. Dahl, Shenggao Liu
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Patent number: 7306674Abstract: Novel uses of higher diamondoids are disclosed. Specifically, higher diamondoids may be used to nucleate diamond films and diamond-like carbon films. Such higher diamondoids include iso-tetramantane [1(2)3], anti-tetramantane [121], the two enantiomers of skew-tetramantane [123], the ten possible pentamantane, the thirty nine possible hexamantanes, the one hundred sixty heptamantanes, as well as the various octamantanes, nonamantanes, decamantanes, and undecamantanes.Type: GrantFiled: June 10, 2004Date of Patent: December 11, 2007Assignee: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
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Patent number: 7306671Abstract: Novel uses of diamondoid-containing materials in the field of microelectronics are disclosed. Embodiments include, but are not limited to, thermally conductive films in integrated circuit packaging, low-k dielectric layers in integrated circuit multilevel interconnects, thermally conductive adhesive films, thermally conductive films in thermoelectric cooling devices, passivation films for integrated circuit devices (ICs), and field emission cathodes. The diamondoids employed in the present invention may be selected from lower diamondoids, as well as the newly provided higher diamondoids, including substituted and unsubstituted diamondoids. The higher diamondoids include tetramantane, peritamantane, hexamantane, heptamantane, octamantane, nonamantane, decamantane, and undecamantane.Type: GrantFiled: February 24, 2004Date of Patent: December 11, 2007Assignee: Chevron U.S.A.. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu