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 |
| 7407032 | Practical and entertaining recreational vehicle The present invention provides for a practical and entertaining form of recreational transportation, easily transportable to weekend events. It is a compact transport kart (10), designed to carry at least one human passenger. It also transports its passenger ... | 08/05/2008 |
| 7143644 | Device for collecting statistical data for maintenance of small-arms A system and method for collecting data on small-arms usage in the form of a device which is mounted to the firearm so as to be able to sense at least an impulse in the firearm due to firing. The device is mounted to the gun so as to detect impulses due to firing. A... | 12/05/2006 |
| 6873403 | HALATION-PREVENTION FILTER, IMAGE ANALYSIS DEVICE EQUIPPED WITH SAID HALATION-PREVENTION FILTER, AND DIFFRACTION PATTERN INTENSITY ANALYSIS METHOD AND DIFFRACTION PATTERN INTENSITY CORRECTION PROGRAM THAT USE SAID HALATION-PREVENTION FILTER An image analysis device 1 is equipped with the photoreceptive means 11 that optically acquires diffraction pattern A that appears on the fluorescent screen 24 in order to obtain the diffraction pattern resulting from reflection high-energy elec... | 03/29/2005 |
| 6820062 | Product information system The present invention features a Product Information System (PISYS) which presents advertising and product information to grocery shoppers. The system includes one or more shopping carts with a bar code scanner to read Universal Product Codes (UPCs) from merchandise... | 11/16/2004 |
| 6792902 | Externally mounted DPCS (differential pressure control system) with position sensor control to reduce frictional and magnetic hysteresis The cam phaser of the present invention includes an externally mounted DPCS (234) with spool position feedback to control the position of a center mounted spool valve (192) and control the phase angle of the cam mounted phaser. A position sensor (30... | 09/21/2004 |
| 6772481 | Hinge assembly A hinge assembly (1) used for a foldable cellular telephone, comprising a pair of abutment members (5, 6), a bias means (7) biasing the abutment members so that the abutment members are pressingly brought into contact with each other, a projecti... | 08/10/2004 |
| 6772721 | Torsional assist cam phaser for cam in block engines A phaser for maintaining an angular relationship between a crank shaft and a cam shaft or among more than one cam shafts is provided. The phaser includes a rotor having a plurality of vanes integral to the rotor and protruding from the rotor body. The plurality of v... | 08/10/2004 |
| 6767302 | Hydraulic tensioner A hydraulic tensioner that decreases the number of components, secures an adequate backlash, and prevents backward movement of a plunger. The hydraulic tensioner includes a hollow plunger having rack teeth formed on a portion of an outer circumferential surface, sli... | 07/27/2004 |
| 6766776 | Control method for preventing integrator wind-up when operating VCT at or near its physical stops In a VCT system, a method uses a controller to automatically determine a state of a phaser based on an identifier. The identifier identifies a filtered signal of the crank shaft and cam shaft and uses the same to identify the phaser state. A reset signal is generate... | 07/27/2004 |
| 6763791 | Cam phaser for engines having two check valves in rotor between chambers and spool valve An infinitely variable camshaft timing device (phaser) has a control valve located in the rotor. Since the control valve is in the rotor, the camshaft need only provide a single passage for supplying engine oil or hydraulic fluid, and does not need multiple passagew... | 07/20/2004 |
| 6725863 | Choking assistance device A choking assistance device includes a head specially designed for placement against the abdomen of a choking victim for performance of the Heimlich Maneuver. The head has lateral extensions and, in the preferred embodiment, a central bulge. The choking assistance d... | 04/27/2004 |
| 6643396 | Acquisition of 3-D scenes with a single hand held camera The acquisition of 3-D scenes by a single hand-held camera is disclosed. The camera is preferably mounted on a lens attachment with four mirrors, enabling stereo capturing of the scene. The signal processing tasks involved, camera calibration and correspo... | 11/04/2003 |
| 6611100 | Reflective electro-optic fiber-based displays with barriers An electronic display is formed using an array of hollow tubes filled with an electrophoretic material sandwiched between two plates. The hollow tubes have either barrier walls or an electrostatic barrier, which restrict the flow of electrophoretic partic... | 08/26/2003 |
| 6464866 | Integrated monolithic microfabricated electrospray and liquid chromatography system and method An electrospray device, a liquid chromatography device and an electrosprayliquid chromatography system are disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice ... | 10/15/2002 |
| 6464856 | Separation of tars, oils and inorganic constituents from oil bearing sands or shales An improved process for the total separation and recovery of four constituents, namely, 1) insoluble pitches and tars also known as asphaltenes, 2) a kerosene based oil fraction, 3) clays and silts of less than 80 μm mesh and 4) sands of greater than 80 ... | 10/15/2002 |
| 6461516 | Integrated monolithic microfabricated electrospray and liquid chromatography system and method An electrospray device, a liquid chromatography device and an electrosprayliquid chromatography system are disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice ... | 10/08/2002 |
| 6459200 | Reflective electro-optic fiber-based displays A reflective display is formed using two orthogonal fiber arrays and an electro-optic material. The bottom fibers contain plasma channels, used to address the electro-optic material. Wire electrodes built into the fibers address both the plasma and the el... | 10/01/2002 |
| 6454938 | Integrated monolithic microfabricated electrospray and liquid chromatography system and method An electrospray device, a liquid chromatography device and an electrosprayliquid chromatography system are disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice ... | 09/24/2002 |
| 6431935 | Lost glass process used in making display A process for the fabrication of a fiber-based information display using a lost glass process includes drawing a fiber from a preform composed of at least two different glass compositions, where one of the compositions is a dissolvable glass, and removing... | 08/13/2002 |
| 6417510 | Integrated monolithic microfabricated electrospray and liquid chromatography system and method A mass spectrometric analysis system is disclosed. The system preferably includes a microfabricated electrospray device formed at least in part by reactive-ion etching and a mass spectrometer which includes a sampling orifice. The electrospray device pref... | 07/09/2002 |
| 6378312 | Pulse-tube cryorefrigeration apparatus using an integrated buffer volume A component for use in pulse tube cryorefrigerators which integrates the reservoirs (buffer volumes) as well as the housing for the rotary valve and valve plate and drive motor into a convenient, unified assembly. Other components required by the pulse-tu... | 04/30/2002 |