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Cheng, DE

Lap-Tak Andrew Cheng, Newark, DE US

Patent application numberDescriptionPublished
20090284122Co-processable Photoimageable Silver and Corbon Nanotube Compositions and Method for Field Emission Devices - Described herein are methods of manufacturing an electrode and emitter in a field emission device, and devices formed from the methods. Compositions useful for the manufacture of an electrode and emitter in a field emission device are also described.11-19-2009
20090314647METHOD FOR THE ELECTROCHEMICAL DEPOSITION OF CARBON NANOTUBES - This invention relates to the electrochemical deposition of carbon nanotubes (“CNTs”) on a substrate using an electrochemical cell. A dispersion of a complex of CNTs and an anionic polymer is neutralized and thereby caused to deposit on the anode plate of the cell.12-24-2009
20100044233METHOD FOR THE ELECTROCHEMICAL DEPOSITION OF CARBON NANOTUBES - This invention relates to the electrochemical deposition of carbon nanotubes (“CNTs”) on a substrate using an electrochemical cell. A dispersion of a complex of CNTs and an anionic polymer is neutralized and thereby caused to deposit on the anode plate of the cell.02-25-2010
20100072879FIELD EMISSION DEVICE WITH ANODE COATING - A field emission device in which a protective material is employed in relation to the anode wherein the protective material is selected from one or more members of the group consisting of amorphous carbon, graphite, diamond-like carbon, fullerenes, carbon nanotubes, a (co)polymer and an organic coating compound.03-25-2010
20100252804CATHODE ASSEMBLY CONTAINING AN ULTRAVIOLET LIGHT-BLOCKING DIELECTRIC LAYER - A field emission cathode assembly that has a UV-blocking, insulating dielectric layer (10-07-2010
20100264805UNDER-GATE FIELD EMISSION TRIODE WITH CHARGE DISSIPATION LAYER - Under-gate field emission triode devices, and cathode assemblies for use therein, contain a charge dissipation layer. The charge dissipation layer may be located under or over the cathode electrode and/or electron field emitter.10-21-2010
20110006271DIELECTRIC COMPOSITION WITH REDUCED RESISTANCE - This invention provides a dielectric composition comprising a dielectric which is fireable in air at a temperature in the range of about 450° C. to about 550° C. and a conductive oxide selected from the group consisting of antimony-doped tin oxide, tin-doped indium oxide, a transition metal oxide which has mixed valence states or will form mixed valence states after firing in a nitrogen atmosphere at a temperature in the range of about 450° C. to about 550° C. and normally conducting precious metal oxides such as ruthenium dioxide, wherein the amount of conductive oxide present is from about 0.25 wt % to about 25 wt % of the total weight of dielectric and conductive oxide. This dielectric composition has reduced electrical resistance and is useful in electron field emission devices to eliminate charging of the dielectric in the vicinity of the electron emitter and the effect of static charge induced field emission.01-13-2011

Patent applications by Lap-Tak Andrew Cheng, Newark, DE US

Lap-Tal Andrew Cheng, Newark, DE US

Patent application numberDescriptionPublished
20100314989PATTERNING A THICK FILM PASTE IN SURFACE FEATURES - This invention relates to a method for the fabrication of electrical and electronic devices using a photoresist deposited in pre-existing through holes in a device structure and a thick film paste, and to the devices made by such method. The method allows thick film paste deposits in the corners of the holes. This invention also relates to devices made with thick film pastes that are patterned using a diffusion layer made from residual photoresist deposits in a hole.12-16-2010

Lap-Tap Andrew Cheng, Newark, DE US

Patent application numberDescriptionPublished
20080299864PROCESS FOR IMPROVING THE EMISSION OF ELECTRON FIELD EMITTERS - This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.12-04-2008
20090104834PROCESS FOR IMPROVING THE EMISSION OF ELECTRON FIELD EMITTERS - This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.04-23-2009

Qiong Cheng, Wilmington, DE US

Patent application numberDescriptionPublished
20090029412SOLUBILITY TAGS FOR THE EXPRESSION AND PURIFICATION OF BIOACTIVE PEPTIDES - Peptide tags, referred to here as inclusion body tags, are disclosed useful for the generation of insoluble fusion peptides. The fusion peptides comprise at least one inclusion body tag operably linked to a peptide of interest. Expression of the fusion peptide in a host cell results in a product that is insoluble and contained within inclusion bodies in the cell and/or cell lysate. The inclusion bodies may then be purified and the protein of interest may be isolated after cleavage from the inclusion body tag.01-29-2009
20090043075RECOMBINANT PEPTIDE PRODUCTION USING A CROSS-LINKABLE SOLUBILITY TAG - The invention relates to the recombinant expression of a peptide of interest in the form of a fusion protein comprising a solubility tag. The fusion protein comprises at least two portions separated by a cleavable peptide sequence wherein one portion is devoid of cysteine residues and the second portion comprises an effective number of cross-linkable cysteine residues. After cell lysis and isolation of the fusion protein, the fusion protein is subsequently cleaved into a mixture of first and second portions. Oxidative cross-linking is used to selectively precipitate one of the two portions to facilitate simple and effective separation of the peptide of interest.02-12-2009
20090117609USE OF TETRACYSTEINE TAGS IN FLUORESCENCE-ACTIVATED CELL SORTING ANALYSIS OF PROKARYOTIC CELLS PRODUCING PEPTIDES OR PROTEINS - A process of in vivo labeling and identifying recombinantly produced peptides or proteins within an unpermeabilized prokaryotic host cell. Recombinant prokaryotic cells expressing a fusion peptide comprising at least one tetracysteine tag were labeled in vivo using a biarsenical labeling reagent. A fluorescent activated cell sorter was used to identify and select subpopulations of fluorescent cells wherein the amount of fusion peptide in the cell was proportional to the amount of fluorescence detected.05-07-2009
20100136621SOLUBILITY TAGS FOR THE EXPRESSION AND PURIFICATION OF BIOACTIVE PEPTIDES - Peptide tags, referred to here as inclusion body tags, are disclosed useful for the generation of insoluble fusion peptides. The fusion peptides comprise at least one inclusion body tag operably linked to a peptide of interest. Expression of the fusion peptide in a host cell results in a product that is insoluble and contained within inclusion bodies in the cell and/or cell lysate. The inclusion bodies may then be purified and the protein of interest may be isolated after cleavage from the inclusion body tag.06-03-2010
20100158823PEPTIDE LINKERS FOR EFFECTIVE MULTIVALENT PEPTIDE BINDING - Short single chain peptides having affinity for a target surface often lack the binding durability required for certain commercial applications. One way to improve durability is to promote multivalent binding by linking together binding sequences using peptide linkers. However, the resulting single chain binding peptides often suffer from linker entropy. It has been discovered that the use of rigid peptide linkers when linking together multiple binding sequences enhances the binding affinity of the resulting single chain peptide.06-24-2010
20100159513GENES THAT INCREASE PEPTIDE PRODUCTION - Several endogenous genes have been identified in 06-24-2010
20100227361HOST CELL MODIFICATIONS THAT IMPROVE PEPTIDE PRODUCTION AND DOWNSTREAM PROCESSING - Disrupting the expression of endogenous 09-09-2010

Patent applications by Qiong Cheng, Wilmington, DE US

Zhe Cheng, Wilmington, DE US

Patent application numberDescriptionPublished
20100112408CHEMICAL COMPOSITIONS, METHODS OF MAKING THE CHEMICAL COMPOSITIONS, AND STRUCTURES MADE FROM THE CHEMICAL COMPOSITIONS - Embodiments of the present disclosure include chemical compositions, structures, anodes, cathodes, electrolytes for solid oxide fuel cells, solid oxide fuel cells, fuel cells, fuel cell membranes, separation membranes, catalytic membranes, sensors, coatings for electrolytes, electrodes, membranes, and catalysts, and the like, are disclosed.05-06-2010