Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7384902 | Metal brightener and surface cleaner The present invention provides a metal brightener and surface cleaner, which provides significant etching of aluminum and other metals, without detrimentally affecting other surfaces such as painted surfaces, glass, rubber and plastic. The inventive composition is e... | 06/10/2008 |
| 6826284 | Method and apparatus for passive acoustic source localization for video camera steering applications A real-time passive acoustic source localization system for video camera steering advantageously determines the relative delay between the direct paths of two estimated channel impulse responses. The illustrative system employs an approach referred to herein as the ... | 11/30/2004 |
| 6794694 | Inter-wiring-layer capacitors An integrated circuit includes a semiconductor substrate with semiconductor devices formed therein and thereon, a first wiring layer located over the substrate, a second wiring layer located on the first wiring layer, and a capacitor. The capacitor has metal-based c... | 09/21/2004 |
| 6766019 | Method and apparatus for performing double-talk detection in acoustic echo cancellation A method and apparatus for performing double-talk detection in an acoustic echo canceller in which a detection statistic is advantageously computed based on an estimate of a cross-correlation between the far-end signal and the return signal which has been normalized... | 07/20/2004 |
| 6721376 | Signal encoding for transmission of multiple digital signals over single physical medium Two or more digital signals are encoded using two or more respective line codes. The line codes are chosen in conjunction with the data rates of the digital signals such that the encoded signals are substantially orthogonal to each other in the frequency domain. As ... | 04/13/2004 |
| 6694478 | Low delay channel codes for correcting bursts of lost packets A method and apparatus for coding and decoding a sequence of data packets with use of a novel class of forward error correcting codes having coding rates greater than 1/2 which nonetheless provide relatively high levels of channel protection against burst... | 02/17/2004 |
| 6653181 | CMOS integrated circuit having vertical transistors and a process for fabricating same A process for fabricating a CMOS integrated circuit with vertical MOSFET devices is disclosed. In the process, at least three layers of material are formed sequentially on a semiconductor substrate. The three layers are arranged such that the second layer... | 11/25/2003 |
| 6600851 | Electrostatically actuated micro-electro-mechanical system (MEMS) device A micro-electro-mechanical system (MEMS) actuator device is disclosed. The MEMS actuator device has an actuated element that is rotatably connected to a support structure via torsional members. The torsional members provide a restoring force to keep the a... | 07/29/2003 |
| 6559499 | Process for fabricating an integrated circuit device having capacitors with a multilevel metallization A process for fabricating trench capacitors in an interconnect layer of a semiconductor device is disclosed. In the process, at least one interconnect is formed in the interconnect layer, which is then planarized. To form the trench capacitor, a trench is... | 05/06/2003 |
| 6531751 | Semiconductor device with increased gate insulator lifetime A semiconductor device in which hole-induced damage to the dielectric layer is reduced is disclosed. In the device, a layer of a conductive, high bandgap (i.e. a material with a bandgap greater than 1.1 eV) material is formed adjacent to the dielectric la... | 03/11/2003 |
| 6524645 | Process for the electroless deposition of metal on a substrate A process for the metalization of substrates is disclosed. The metal either forms a coating over the entire substrate, or it is patternwise deposited on the substrate surface. Metal is patternwise formed on the substrate either by forming a pattern of res... | 02/25/2003 |
| 6485998 | Linear pin photodiode An improved PIN photodiode provides enhanced linearity by confining the light absorption region of the diode wholly within the depletion region. The photodiode exhibits improved linearity over prior art designs because the thickness of the absorption regi... | 11/26/2002 |
| 6479404 | Process for fabricating a semiconductor device having a metal oxide or a metal silicate gate dielectric layer A process for forming a metal oxide or a metal silicate gate dielectric layer on a semiconductor substrate is disclosed. A suitably prepared substrate is placed in a chamber. An organic precursor gas is flowed into the chamber. An inorganic precursor gas ... | 11/12/2002 |
| 6469357 | Article comprising an oxide layer on a GaAs or GaN-based semiconductor body We have found that a single crystal, single domain oxide layer of thickness less than 5 nm can be grown on a (100) oriented GaAs-based semiconductor substrate. Similar epitaxial oxide can be grown on GaN and GaN-based semiconductors. The oxide typically i... | 10/22/2002 |
| 6459728 | Iterative channel estimation A method and apparatus for estimating channel impulse response and data in a signal transmitted over a channel in a communication system. The channel impulse response is estimated uses correlative channel sounding, and then, using the estimated channel im... | 10/01/2002 |
| 6420714 | Electron beam imaging apparatus An apparatus for projection lithography is disclosed. The apparatus has at least one magnetic doublet lens. An aperture scatter filter is interposed between the two lenses of the magnetic doublet lens. The aperture scatter filter is in the back focal plan... | 07/16/2002 |
| 6391798 | Process for planarization a semiconductor substrate A process for forming a semiconductor wafer with a flat surface is disclosed. In the process, a bare semiconductor wafer that has been sawed from an ingot is provided. A layer of planarization material is formed on at least one major surface of the semico... | 05/21/2002 |
| 6392221 | Micro-electro-mechanical optical device A micro-electro-mechanical optical device is disclosed. The micro-electro-mechanical optical device includes a micro-electro-mechanical structure coupled with an optical device. Both the micro-electro-mechanical structure and the optical device are dispos... | 05/21/2002 |
| 6379868 | Lithographic process for device fabrication using dark-field illumination A lithographic apparatus and process that utilizes dark-field imaging of mask features to introduce an image of those features into an energy sensitive resist material is disclosed. Dark field imaging is accomplished by utilizing off-axis illumination in ... | 04/30/2002 |
| 6380083 | Process for semiconductor device fabrication having copper interconnects A process for fabricating a semiconductor device with copper interconnects is disclosed. In the process of the present invention, a layer of dielectric material is formed on a substrate. A barrier layer to prevent copper diffusion is then deposited over t... | 04/30/2002 |
| 6370307 | Optical device formed on a substrate with thermal isolation regions formed therein An optical device that is a waveguide with a heating element thereon that is formed on a silicon substrate is disclosed. The waveguide is formed on a region of porous silicon formed in the silicon substrate. The porous silicon region provides greater resi... | 04/09/2002 |
| 6366414 | Micro-electro-mechanical optical device An electro-mechanical structure which controls the movement of an optical device coupled thereto is disclosed. Both the electro-mechanical structure and the optical device are disposed on a substrate surface. The electro-mechanical structure controls the ... | 04/02/2002 |
| 6353911 | Iterative demapping A method and apparatus for iteratively decoding a multilevel modulated signal in which the soft output information of a channel decoder is fed back and utilized by a tailored soft demapping device in order to improve the decoding result by further iterati... | 03/05/2002 |
| 6350659 | Process of making semiconductor device having regions of insulating material formed in a semiconductor substrate A process for fabricating a silicon-on-insulator integrated circuit in conjunction with a process for shallow trench isolation is disclosed. The shallow trench isolation is performed to define active regions in the silicon substrate. The active regions ar... | 02/26/2002 |
| 6312581 | Process for fabricating an optical device A process for fabricating a silica-based optical device on a silicon substrate is disclosed. The device has a cladding formed in a silicon substrate. The device also has an active region, and that active region is formed on the cladding. The cladding is f... | 11/06/2001 |
| 6300156 | Process for fabricating micromechanical devices A process for fabricating a MEMS device is disclosed. The device has at least one hinged element. The MEMS device including the hinged element is delineated and defined on a semiconductor substrate. The substrate is placed device side down in a chamber. T... | 10/09/2001 |
| 6297154 | Process for semiconductor device fabrication having copper interconnects A process for fabricating a semiconductor device with copper interconnects is disclosed. In the process of the present invention, a layer of dielectric material is formed on a substrate. At least one recess is formed in the layer of dielectric material. B... | 10/02/2001 |
| 6296984 | Energy-sensitive resist material and a process for device fabrication using an energy-sensitive resist material A process for device fabrication and resist materials that are used in the process are disclosed. The resist material contains acid labile groups either pendant to the polymer or to a dissolution inhibitor that is combined with the polymer. The acid labil... | 10/02/2001 |
| 6264749 | Process and apparatus for making composite films The present invention is directed to a process for forming composite films. The films are formed on a substrate by directing a gas containing reactant species onto the substrate. The composite film is formed from an interaction between two reactant specie... | 07/24/2001 |
| 6265239 | Micro-electro-mechanical optical device A method for pivoting an optical device about one or more axes thereof is disclosed. Springs couple the optical device to the micro-electro-mechanical structure. A portion of the springs are fastened on the micro-electro-mechanical structure. Fastening th... | 07/24/2001 |
| 6261857 | Process for fabricating an optical waveguide A process for fabricating a waveguide with a desired tapered profile is disclosed. The waveguide has a first section with a first height and a second section with a second height. The first height is greater than the second height. The waveguide height ta... | 07/17/2001 |
| 6252253 | Patterned light emitting diode devices An LED device that emits light in a pattern is disclosed. The LED device is a layer of active material that is sandwiched between a transparent substrate with an anode formed thereon and a cathode. The active material has a layer of light emitting materia... | 06/26/2001 |
| 6249075 | Surface micro-machined acoustic transducers A micro-machined transducer having a structure in which an acoustic enclosure is formed on a substrate above the plane of the substrate surface is disclosed. Forming the acoustic enclosure on the substrate above the plane of the substrate surface, rather ... | 06/19/2001 |
| 6218057 | Lithographic process having sub-wavelength resolution A lithographic process for making an article such as a semiconductor device or a lithographic mask is disclosed. In the process, articles are fabricated by a sequence of steps in which materials are deposited on a substrate and patterned. These patterned ... | 04/17/2001 |
| 6211539 | Semi-insulated indium phosphide based compositions It has been found that through the use of ferrocene or iron pentacarbonyl based compounds, it is possible to produce semi-insulating epitaxial layers of indium phosphide-based compounds by an MOCVD process. Resistivities up to 1×109 ohm-cm hav... | 04/03/2001 |
| 6201631 | Process for fabricating an optical mirror array An electro-optic device which includes a mirror array attached to a base substrate is disclosed. The mirror array comprises a substrate having a plurality of spaced-apart mirrors with underlying cavities (each having a diameter at least about the same siz... | 03/13/2001 |
| 6197663 | Process for fabricating integrated circuit devices having thin film transistors A process for fabricating an integrated circuit device is disclosed. The integrated circuit has a plurality of TFTs and an electrical interconnect structure. In the process, at least some constituents of the TFTs are formed on a first substrate. At least ... | 03/06/2001 |
| 6197641 | Process for fabricating vertical transistors A process for fabricating a vertical MOSFET device for use in integrated circuits is disclosed. In the process, at least three layers of material are formed sequentially on a semiconductor substrate. The three layers are arranged such that the second laye... | 03/06/2001 |
| 6177218 | Lithographic process for device fabrication using electron beam imaging A lithographic process for device fabrication in which a pattern is transferred from a mask into an energy sensitive material by projecting charged particle (e.g. electron beam) radiation onto the mask is disclosed. The pattern on the mask is divided into... | 01/23/2001 |
| 6153920 | Process for controlling dopant diffusion in a semiconductor layer and semiconductor device formed thereby A semiconductor device having a carbon-containing region with an advantageous concentration profile is disclosed. The carbon is introduced into a region of the substrate and at a depth below the space-charge layer of the device and at a concentration such... | 11/28/2000 |