...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8184848 | Liquid level detection method A liquid level detection method includes capturing an image of a liquid surface, a structural surface, and graduation markings provided on the structural surface using an image-capturing device to thereby obtain an initial image. Subsequently, the initial image is p... | 05/22/2012 |
| 8130444 | Catadioptric telescope imaging system A telescope imaging system includes a first lens group for receiving a spot light and generating a first refracted beam, a second lens group for receiving the first refracted beam and generating a second refracted beam, a third lens group having a convex lens dispos... | 03/06/2012 |
| 7952782 | Observing device and method to observe a three-dimensional flow field An observing device for observing a flow field in a detection space is provided. The observing device includes a light source generating a light beam, a light-deflecting device deflecting the light beam, and a light sheet-generating component receiving the light bea... | 05/31/2011 |
| 7940483 | Focusing device and focusing method A focusing device is provided. The focusing device has a changing focal length along a physical parameter thereof. The focusing device could be annular or in a shape of a disk. The annular focusing device has a width thereof changing with a periphery thereof, and th... | 05/10/2011 |
| 7919724 | Cutting device for cutting hard-brittle material A cutting device for cutting a hard-brittle material along a cutting path is provided. The cutting device includes a cooling source having a first output terminal for providing a first cooling effect along the cutting path, and a heating source having a second outpu... | 04/05/2011 |
| 7906155 | Method for increasing an amount of effective constituents from a plant in a solvent A method for increasing an amount of effective constituents from a plant in a solvent is provided. The method comprises steps of treating the solvent with a far-infrared radiating (FIR) material and extracting the effective constituents from the plant by the treated... | 03/15/2011 |
| 7751679 | Brightness enhancement film and backlight module The present invention relates to a brightness enhancement film and a backlight module having the brightness enhancement film. The brightness enhancement film includes first micro-reflectors and second micro-reflectors. The cross-section of each of the first and seco... | 07/06/2010 |
| 7645915 | Composite dressing A composite dressing including a first polymeric layer, a second polymeric layer, a metal oxide, and a pharmaceutical active material is provided. The second polymeric layer is biocompatible and is disposed on a surface of the first polymeric layer. The metal oxide ... | 01/12/2010 |
| 7449962 | Phase-controlled current source for phase-locked loop A phase-controlled current source for phase-locked loop is provided. The phase-locked loop includes a voltage-controlled oscillator to associate a charging path or discharging path in order to generate an output signal and the output signal is further sensed so as t... | 11/11/2008 |
| 7373828 | Landform monitoring system having pressure sensing devices A landform monitoring system includes a pressure sensing device mounted on a mounting frame, and including a housing unit configured with an accommodating space and having first and second openings in fluid communication with the accommodating space. A pressure sens... | 05/20/2008 |
| 7373758 | Seismic brace with a removable restraining member disposed around a middle portion of an elongated central brace unit A seismic brace includes an elongated central brace unit and a rigid restraining member. The central brace unit has two ends adapted to be connected fixedly to a framework of a building, and a middle portion interconnecting the ends and having a cross-sectional area... | 05/20/2008 |
| 7210340 | Front-wing cantilever for the conductive probe of electrical scanning probe microscopes The present invention discloses a front-wing cantilever for the conductive probe of electrical scanning probe microscopes, wherein two symmetrical front wings are installed to extend from two lateral sides of the front end of the cantilever so that those two front w... | 05/01/2007 |
| 7193424 | Electrical scanning probe microscope apparatus An electrical scanning probe microscope (SPM) apparatus. The SPM apparatus is equipped with an atomic force microscope with an infrared laser source, a position-sensitive photo-detector (PSPD) to provide a topographic image, a charge-coupled device (CCD) monitor for... | 03/20/2007 |
| 7126359 | Device monitor for RF and DC measurement A device monitor for RF and DC measurement. The device monitor comprises a plurality of test cells arranged substantially in line. The test cell comprises a device under test, an input pad, an output pad and at least two reference pads. The input pad is electrically... | 10/24/2006 |
| 6975129 | Electrical scanning probe microscope apparatus An electrical scanning probe microscope (SPM) apparatus. The SPM apparatus is equipped with an atomic force microscope with long-wavelength laser source to acquire topographic images and an electrical scanning sensor operatively coupled to the atomic force microscop... | 12/13/2005 |
| 6955467 | Seismic isolation bearing assembly with a frame unit for supporting a machine body thereon A seismic isolation bearing assembly includes a frame unit including upper and lower frames and defining a plurality of upper and lower sub-frames, and a plurality of bearing units, each of which is mounted in a mounting cell defined by a respective one of the upper... | 10/18/2005 |