3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Application No. | Application Title | Issue Date |
| 20110215738 | WIND TURBINE APPARATUS, SYSTEMS AND METHODS A wind turbine is disclosed. The wind turbine includes comprising an inflatable portion comprising one or more blades and a device for rotatably driving the inflatable portion at a predetermined rate for a predetermined time.... | 09/08/2011 |
| 20110140636 | SYSTEM AND METHOD FOR PROVIDING A CONTROL SIGNAL The system, which provides a control signal, includes an over-current control unit, a time clock that provides a periodic time signal, and a clock generator unit that includes a first input terminal, a second input terminal, and an output terminal. The first input termi... | 06/16/2011 |
| 20110115411 | Current Regulator for Multimode Operation of Solid State Lighting An exemplary apparatus embodiment provides a plurality of operating modes for solid state lighting, such as a flash mode and a constant or background lighting mode for use with devices such as cameras. An exemplary apparatus comprises a memory adapted to store a plurali... | 05/19/2011 |
| 20100213874 | Optocoupler System with Reduced Power Consumption and Pulse Width Distortion According to one embodiment, there is provided an optocoupler system configured to generate current signals having high, low and no amplitude portions in response to the receipt of logic high and low input signals. The varying amplitude portions of the current signals a... | 08/26/2010 |
| 20100181914 | LIGHTING CONTROL DEVICE OF LIGHTING DEVICE FOR VEHICLE A lighting control device of a lighting device for a vehicle includes a switching regulator for supplying a driving current to a semiconductor light source. The lighting control device also includes control means having a current detecting portion for detecting the driv... | 07/22/2010 |
| 20100134047 | Modular LED Light Bulb An LED-based lighting device and method for making the same are disclosed. The lighting device includes an LED light source mounted on a heat sink, a power adaptor, and a controller. The power adaptor is configured to be interchangeable with a conventional incandescent ... | 06/03/2010 |
| 20100026210 | APPARATUS FOR DRIVING A GAS DISCHARGE LAMP A driver (10) for driving a gas discharge lamp (L) comprises a current generator (1; 2) for generating a lamp current with a main lamp current component and, for arc-straightening purposes, a ripple current component. A controller (3) controls the c... | 02/04/2010 |
| 20100007291 | CURRENT-LIMITING PROTECTION CIRCUIT OF A REMOTELY CONTROLLED CEILING FAN-LAMP A current-limiting protection circuit of remotely controlled ceiling fan-lamp is disclosed. The current-limiting protection circuit includes a microcontroller unit for detecting rectangular wave signal reflective of the power used by a lamp load. The rectangular wave si... | 01/14/2010 |
| 20100001646 | DEVICE CAPABLE OF GENERATING ELECTRICITY, AND METHOD OF GENERATING ELECTRICITY A device capable of generating electricity includes a rotating unit and a piezoelectric component. The rotating unit is rotatable about a rotation axis and includes a plurality of strikers that are disposed at angularly spaced apart positions relative to the rotation ax... | 01/07/2010 |
| 20090251075 | INERTIAL-POWER LIGHT-EMITTING DEVICE A light-emitting device driven by an inertial power includes an inertial module, a magnetic element, a magnetic-conductive element, at least one wire, and a light-emitting module. Under an inertial effect, the inertial module drives the magnetic element to rotate, such ... | 10/08/2009 |
| 20090224695 | DRIVE CIRCUIT FOR DRIVING A LOAD WITH CONSTANT CURRENT A drive circuit (1) for driving a load (3) comprises: a switched mode power supply (10) for supplying at the output (2a, 2b) a switched output current (IL); a controller (20) for controlling the power supply; a cur... | 09/10/2009 |
| 20090026981 | LIGHT EMITTING ELEMENT DRIVER DEVICE A driver device for driving light emitting elements comprises a data latch having an input coupled to an input signal, a current control circuit having an input coupled to the data latch, and an output coupled to the input of an output stage, the latter being configured... | 01/29/2009 |
| 20090001905 | Delta-sigma signal density modulation for optical transducer control A controller for optical transducers uses delta-sigma signal density modulation to reduce electromagnetic interference.... | 01/01/2009 |
| 20080238342 | MICROPROCESSOR-CONTROLLED INSERTABLE FLASHLIGHT ADAPTER DEVICE An insertable flashlight adapter device for use in an ordinary flashlight having a lamp includes a disc-like shaped housing unit. Electronic circuitry is disposed within the housing unit for selectively operating the flashlight in at least three different modes. The ele... | 10/02/2008 |
| 20080191644 | Circuit and method for matching current channels The present invention discloses a current-matching method comprising steps of: providing a plurality of current channels; grouping the plurality of current channels into W sets, each of which has Q channels; and matching the channels of the same set in current, where bo... | 08/14/2008 |
| 20080116825 | Apparatus and Method for Detecting Failure in an Emergency Lighting Lamphead An apparatus and method adapted to detect a failure in at least one lamphead of an emergency lighting system includes a signal generator and a failure sensor. The lamphead receives power from a power connection. The signal generator generates a monitoring signal having ... | 05/22/2008 |
| 20080001552 | Input current limiting circuit and driving device using the same A driving device for driving a light source module (12) includes an input current limiting circuit (10) and an inverter (11). The input current limiting circuit includes an input current sensing circuit (100) and a feedback compensation circu... | 01/03/2008 |