Patents Assigned to Princeton University
  • Patent number: 7504068
    Abstract: An apparatus for detection and measurement of trace species in a gas or liquid sample. A sensor of a ring down cell formed from an optical fiber is exposed to the sample gas or liquid. A coherent source emits radiation into the optical fiber loop, which in turn is received at an output coupler. The fiber optic ring is coupled to a sensor which has a portion thereof, between the input and output, exposed to the sample gas or sample liquid. The sensor has an enhanced evanescent region. A processor is coupled to the receiver and determines the level of trace species in the gas or liquid sample based on the rate of decay of the radiation within the fiber optic ring.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: March 17, 2009
    Assignee: Trustees of Princeton University
    Inventors: Kevin K. Lehmann, Peter B. Tarsa, Paul Rabinowitz
  • Publication number: 20090053433
    Abstract: A packaging material or flexible medical tubing containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. AKSAY, Douglas ADAMSON, Ahmed ABDALA
  • Publication number: 20090053437
    Abstract: A gas storage cylinder or gas storage cylinder liner, formed from a polymer composite, containing at least one polymer and a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. AKSAY, Douglas ADAMSON, Ahmed ABDALA
  • Publication number: 20090054578
    Abstract: An automotive body panel containing a polymer composite formed of at least one polymer and a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. Aksay, Douglas Adamson, Ahmed Abdala
  • Publication number: 20090054581
    Abstract: A tire, tire lining or inner tube, containing a polymer composite, made of at least one rubber and/or at least one elastomer and a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: The Trustees Of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. Aksay, Douglas Adamson, Ahmed Abdala
  • Publication number: 20090054272
    Abstract: An emulsifier containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. AKSAY, Douglas ADAMSON, Ahmed ABDALA
  • Patent number: 7491892
    Abstract: The present invention relates to stretchable interconnects which can be made in various geometric configurations, depending on the intended application. The stretchable interconnects can be formed of an electrically conducting film or an elastomer material to provide elastic properties in which the interconnects can be reversibly stretched in order to stretch and relax the elastomer material to its original configuration. Alternatively, stretchable interconnects can be formed of an electrically conducting film or a plastic material to provide stretching of the material to a stretched position and retaining the stretched configuration. The stretchable interconnect can be formed of a flat 2-dimensional conductive film covering an elastomeric or plastic substrate. When this structure is stretched in one or two dimensions, it retains electrical conduction in both dimensions.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 17, 2009
    Assignee: Princeton University
    Inventors: Sigurd Wagner, Stephanie Perichon Lacour, Zhigang Suo
  • Patent number: 7488542
    Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: February 10, 2009
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Mark E. Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul E. Burrows, Stephen R. Forrest
  • Publication number: 20090028792
    Abstract: Oxide, oxysulfide, halide or phosphate host particles with a self-assembled organophosphonate monolayer covalently bonded thereto. Methods for coating the host particles and use of rare earth ion-doped particles in imaging methods and photodynamic therapy methods are also disclosed.
    Type: Application
    Filed: July 19, 2008
    Publication date: January 29, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Jeffrey Schwartz, Christopher A. Traina
  • Patent number: 7482195
    Abstract: A method of purifying small molecule organic material, performed as a series of operations beginning with a first sample of the organic small molecule material. The first step is to purify the organic small molecule material by thermal gradient sublimation. The second step is to test the purity of at least one sample from the purified organic small molecule material by spectroscopy. The third step is to repeat the first through third steps on the purified small molecule material if the spectroscopic testing reveals any peaks exceeding a threshold percentage of a magnitude of a characteristic peak of a target organic small molecule. The steps are performed at least twice. The threshold percentage is at most 10%. Preferably the threshold percentage is 5% and more preferably 2%. The threshold percentage may be selected based on the spectra of past samples that achieved target performance characteristics in finished devices.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 27, 2009
    Assignee: The Trustees of Princeton University
    Inventors: Rhonda F. Salzman, Stephen R. Forrest
  • Patent number: 7473671
    Abstract: A glycopeptide of the formula A1-A2-A3-A4-A5-A6-A7, in which each dash represents a covalent bond; wherein A1 comprises a modified or unmodified ?-amino acid residue, alkyl, aryl, aralkyl, alkanoyl, aroyl, aralkanoyl, heterocyclic, heterocyclic-carbonyl, heterocyclic-alkyl, heterocyclic-alkyl-carbonyl, alkylsulfonyl, arylsulfonyl, guanidinyl, carbamoyl, or xanthyl; wherein each of A2 to A7 comprises a modified or unmodified ?-amino acid residue, whereby (i) A1 is linked to an amino group on A2, (ii) each of A2, A4 and A6 bears an aromatic side chain, which aromatic side chains are cross-linked together by two or more covalent bonds, and (iii) A7 bears a terminal carboxyl, ester, amide, or N-substituted amide group; and wherein one or more of A1 to A7 is linked via a glycosidic bond to one or more glycosidic groups each having one or more sugar residues, at least one of the sugar residues bearing one or more substituents of the formula YXR, N+(R1)=CR2R3, N=PR1R2R3, N+R1R2R3 or P+R1R2R3 in which Y is a singl
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: January 6, 2009
    Assignee: The Trustees of Princeton University
    Inventors: Daniel Kahne, Robert Kerns, Seketsu Fukuzawa, Min Ge, Christopher Thompson
  • Patent number: 7474048
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters for the efficient utilization of all of the electrically generated excitons.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: January 6, 2009
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Stephen R. Forrest, Yiru Sun, Noel Giebink, Mark E. Thompson
  • Publication number: 20090004481
    Abstract: Methods for bonding adherent phosphorous-containing coating layers to oxide surfaces on substrates wherein the substrates with oxide surfaces are selected from: (a) oxidized iron, titanium, silicon, tin and vanadium; (b) indium tin oxide; and (c) substrates with oxide layers deposited thereon, wherein the substrates on which oxide layers are deposited are selected from ceramics, semiconductors, metals, plastics and glass, and the method contacts the oxide surface with a carrier conveying an organo-phosphonic acid coating composition and heats the oxide surface and carrier at a sufficient temperature while maintaining contact for a sufficient time to bond a layer of the organophosphonic acid to the oxide surface. Coated articles prepared by the inventive method are also disclosed.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 1, 2009
    Applicant: The Trustees of Princeton University
    Inventors: Jeffrey Schwartz, Michael J. Avaltroni, Michael P. Danahy, Brett M. Silverman
  • Patent number: 7472302
    Abstract: An adaptive cache decay technique is disclosed that removes power from cache lines that have not been accessed for a variable time interval, referred to as the cache line decay interval, assuming that these cache lines are unlikely to be accessed in the future. The decay interval may be increased or decreased for each cache line to increase cache performance or save power, respectively. A default decay interval is initially established for the cache and the default decay interval may then be adjusted for a given cache line based on the performance of the cache line following a cache decay. The cache decay performance is evaluated by determining if a cache line was decayed too quickly. If a cache line is decayed and the same cache contents are again required, then the cache line was decayed too quickly and the cache line decay interval is increased. If a cache line is decayed and the cache line is then accessed to obtain a different cache content, the cache line decay interval can be decreased.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 30, 2008
    Assignees: Agere Systems Inc., The Trustees of Princeton University
    Inventors: Zhigang Hu, Stefanos Kaxiras, Margaret Martonosi
  • Publication number: 20080312368
    Abstract: A wire coating containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: December 18, 2008
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. Prud'homme, Ilhan A. Aksay, Douglas Adamson, Ahmed Abdala
  • Publication number: 20080311296
    Abstract: A device and a method for facilitating the deposition and patterning of organic materials onto substrates utilizing the vapor transport mechanisms of organic vapor phase deposition is provided. The device includes one or more nozzles, and an apparatus integrally connected to the one or more nozzles, wherein the apparatus includes one or more source cells, a carrier gas inlet, a carrier gas outlet, and a first valve capable of controlling the flow of a carrier gas through the one or more source cells. The method includes moving a substrate relative to an apparatus, and controlling the composition of the organic material and/or the rate of the organic material ejected by the one or more nozzles while moving the substrate relative to the apparatus, such that a patterned organic layer is deposited over the substrate.
    Type: Application
    Filed: July 18, 2008
    Publication date: December 18, 2008
    Applicant: The Trustees of Princeton University
    Inventors: Max Shtein, Stephen R. Forrest, Jay B. Benzinger
  • Patent number: 7465678
    Abstract: A device is provided. The device includes a substrate, an inorganic layer disposed over the substrate, and an organic layer disposed on the inorganic conductive or semiconductive layer, such that the organic layer is in direct physical contact with the inorganic conductive or semiconductive layer. The substrate is deformed such that there is a nominal radial or biaxial strain of at least 0.05% relative to a flat substrate at an interface between the inorganic layer and the organic layer. The nominal radial or biaxial strain may be higher, for example 1.5%. A method of making the device is also provided, such that the substrate is deformed after the inorganic layer and the organic layer are deposited onto the substrate.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: December 16, 2008
    Assignee: The Trustees of Princeton University
    Inventors: Rabin Bhattacharya, Sigurd Wagner
  • Patent number: 7465464
    Abstract: Isolated mammalian nucleic acid molecules encoding receptor protein tyrosine kinases expressed in primitive hematopoietic cells and not expressed in mature hematopoietic cells are provided. Also included are the receptors encoded by such nucleic acid molecules; the nucleic acid molecules encoding receptor protein tyrosine kinases having the sequences shown in FIG. 1a (murine flk-2), FIG. 1b (human flk-2) and FIG. 2 (murine flk-1); the receptor protein tyrosine kinases having the amino acid sequences shown in FIG. 1a, FIG. 1b and FIG. 2; ligands for the receptors; nucleic acid sequences that encode the ligands; and methods of stimulating the proliferation and/or differentiation of primitive mammalian hematopoietic stem cells comprising contacting the stem cells with a ligand that binds to a receptor protein tyrosine kinase expressed in primitive mammalian hematopoietic cells and not expressed in mature hematopoietic cells.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: December 16, 2008
    Assignee: Trustees of Princeton University
    Inventor: Ihor R. Lemischka
  • Publication number: 20080306225
    Abstract: A process for polymerization of at least one monomer including polymerizing the at least one monomer in the presence of a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
    Type: Application
    Filed: August 19, 2008
    Publication date: December 11, 2008
    Applicant: The Trustees of Princeton University
    Inventors: Robert K. PRUD'HOMME, Ilhan A. Aksay, Douglas Adamson, Ahmed Abdala
  • Publication number: 20080299311
    Abstract: A method of fabricating an organic film is provided. A non-reactive carrier gas is used to transport an organic vapor. The organic vapor is ejected through a nozzle block onto a cooled substrate, to form a patterned organic film. A device for carrying out the method is also provided. The device includes a source of organic vapors, a source of carrier gas and a vacuum chamber. A heated nozzle block attached to the source of organic vapors and the source of carrier gas has at least one nozzle adapted to eject carrier gas and organic vapors onto a cooled substrate disposed within the vacuum chamber.
    Type: Application
    Filed: July 7, 2008
    Publication date: December 4, 2008
    Applicant: The Trustees of Princeton University
    Inventors: Max SHTEIN, Stephen R. Forrest