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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8147090 | Flashlight A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and... | 04/03/2012 |
| 8087797 | Illumination device with detachable light sources An illumination device includes independent light sources and pivotable legs. In an embodiment, each independent light source includes a head having an illumination element; a body; a power source holder configured to receive a power source for powering the illumina... | 01/03/2012 |
| 8066402 | LED lamps including LED work lights Work light has LEDs that may require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by conv... | 11/29/2011 |
| 7950820 | Intrinsically safe flashlight A lighting device (100) includes a housing (100), a battery receiving region (108), an active electrical circuit (202), and a light source (118). The active electrical circuit (202) uses energy from batteries (110) re... | 05/31/2011 |
| 7802898 | Lightning device A switch assembly that is utilized as a tail cap of a lighting device. The switch assembly comprises a depressible switch that allows the user to activate the lighting device. In an illustrative, non-limiting embodiment, the switch assembly has four channels, provid... | 09/28/2010 |
| 7744239 | Protection shield and grip for flashlight A thermally-insulating, glow-in-the-dark, protection shield and grip for a flashlight. The shield encircles the switch so that the switch cannot inadvertently be turned ON to discharge the batteries. ... | 06/29/2010 |
| 7736015 | LED light A light (10) comprising: a cup-shaped, substantially rigid base (12) having a circumferential ridge (14) on the outer wall (16) of the base (12); a battery (18) having first and second poles (20, 22) within the base (... | 06/15/2010 |
| 7722209 | Flashlight with selectable output level switching A flashlight has a lamp, a power source, two switches, and a controller connected to the switches. The first switch controls delivery of power to the lamp, and the second switch selects a dimmed brightness level. The first switch may invoke the dimmed level, or a ma... | 05/25/2010 |
| 7674003 | Flashlight having plural switches and a controller An electrical switch comprises first and second switch elements including respective first and second electrically conductive flexible domes for selectively making electrical connections. The second switch element is disposed adjacent the first switch element with a... | 03/09/2010 |
| 7631984 | Modular flashlight and method of use therefor A flashlight includes a flashlight head assembly that may be used with either one or two batteries. For use with one battery, a body receives a battery therein and the flashlight head assembly is secured to the body. For use with two batteries, an extension unit is ... | 12/15/2009 |
| 7594735 | Multi-switch flashlight A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-wa... | 09/29/2009 |
| 7562996 | Flashlight A flashlight has a switch housing in between the battery compartment and reflector. The neck of the switch housing holds a lamp support at a central position within a reflector. An o-ring on the rear of the switch housing seals the battery compartment. The switch ho... | 07/21/2009 |
| 7549766 | Light including an electro-optical “photonic” selector switch A light and/or selector may comprise a selector rotatable and axially movable in a housing with a member rotatable therewith for indicating rotational position. A projection engages one or more recesses when the rotatable selector is proximate the housing and does n... | 06/23/2009 |
| 7543953 | LED flashlight with switch actuated by turning a lens tube A flashlight includes a first or top section attached to a second or base section. The top section has one or more elements that are axially moveable relative to the base section, for focusing light. This movement may be achieved, for example, by having the top and ... | 06/09/2009 |
| 7540625 | Flashlight with selectable output level switching A flashlight having a lamp, a power storage element, a switch, and an electronic controller. The controller has a switch input connected to the switch and operates in response to the input to deliver power from the power storage element to the lamp. The controller m... | 06/02/2009 |
| 7527388 | Flashlight with detented rotary control A flashlight has a lamp assembly with a number of different output states. The flashlight has an elongated housing defining a housing axis, and a control ring encompasses the housing and rotates on the housing axis. The control ring operates to change the output sta... | 05/05/2009 |
| 7520631 | Lighting device The present invention provides a lighting device having a battery housing to hold a battery, a light housing having a light source and a lens assembly into which said light source will emit light when activated, said battery and said light source being in circuit wi... | 04/21/2009 |
| 7517109 | Flashlight with rotary head brightness control and detachable tailcap mount A flashlight has a lamp assembly with a number of operating states including an off state and a number of different brightness level output states The flashlight has an elongated housing with opposed forward and rear ends. The housing has a body portion extending to... | 04/14/2009 |
| 7503671 | Flashlight A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-wa... | 03/17/2009 |
| 7478918 | LED-based lamp equipped with a compact case and with multidirectional orientation A portable lamp comprises a LED-based lighting module, a rotary selector switch for selecting the operating mode, and a power supply battery, the whole assembly being housed in a compact case which is coupled to a fixing plate with multidirectional orientation. The ... | 01/20/2009 |
| 7452100 | Retractable, automatic, on/off flashlight system A retractable, automatic, on/off flashlight system includes a retriever having a retriever spring and a line to be retracted by the retriever spring into the retriever in a retraction direction. A flashlight has a light source, a power source and a switch connected ... | 11/18/2008 |
| 7441920 | Multi-switch flashlight A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact w... | 10/28/2008 |
| 7438430 | Light beam generator apparatus A light beam generator including a remote dual switch device preferably including a remote momentary tape switch including a resilient housing and a remote pushbutton actuable CONSTANT ON/OFF switch carried by the resilient housing, the resilient housing configured ... | 10/21/2008 |
| 7434952 | Illuminated driver head with control member A driver head, including a body with a connecting end, a control member, a light emitting element and a power supply element; a control member is pivotally installed in the transversal groove of the body; an electrically conducting plate is contained in the conducti... | 10/14/2008 |
| 7434956 | Dual switch handheld flashlight A handheld flashlight includes a main body with a first and second end which also includes a power source within the main body. A light emitting source is attached to the main body proximate the first end. The main body includes a first switch operably attached to t... | 10/14/2008 |
| 7434955 | Flashlight system An energy efficient flashlight system having multiple lighting display modes and a single operating switch that enables a user to step through the modes. The flashlight illuminates via the use of a plurality of light emitting diodes (LEDs) that preferably contain at... | 10/14/2008 |
| 7422344 | Full color flashlight with high power LED The present invention discloses a full color flashlight with high power LEDs. The flashlight is primarily composed of a full color LED module having LED chip set of different wavelengths, a control-circuit module, a function switch, batteries, and a barrel body. By ... | 09/09/2008 |
| 7419275 | Magnetic illumination A printed circuit board (PCB) has a “U” shape circuit connected to a light emitting diode (LED) by a proximal end, connected to a conducting spring by a distal end. LED mounted inside a conducting shell to emit light toward a light guide tube by magnetic attract... | 09/02/2008 |
| 7410271 | Flashlight with automatic light intensity adjustment means A flashlight with automatic light intensity adjustment means comprising a flashlight casing, a light source, a switch, a light controlling circuit on a printed circuit board and a power source, wherein a sensor component is attached to the flashlight casing, and the... | 08/12/2008 |
| RE40429 | Bore sight A laser bore sight (10) is disclosed hollow, outer housing (11) having an internally threaded, rear portion (14), and a threaded end cap (17) is sized and shaped to be threaded to the housing rear portion (14). The end cap (17 | 07/15/2008 |
| 7396141 | LED push rod flashlight A flashlight includes a first or top section attached to a second or base section. The top section has one or more elements that are axially moveable relative to the base section, for focusing light. This movement may be achieved, for example, by having the top and ... | 07/08/2008 |
| 7393120 | Multi-switch flashlight A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact w... | 07/01/2008 |
| 7393117 | Flashlight or lighting device A flashlight (10) including: a housing (12) with a light source (104), a power source (142), and an aperture (126) through the housing (12) that is closed by a resilient cover (112). The resilient cover (112) e... | 07/01/2008 |
| 7393119 | Method and apparatus for constant light output pulsed L.E.D. illumination An illumination source includes a plurality of LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LED units, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrica... | 07/01/2008 |
| 7390104 | Portable LED lamp A snapped together portable lamp assembly may be formed with a deformable reflector. Cutouts in the reflector form a resiliently flexible web that enables axially flexing to initiate a spring operated electrical switch. A covering lens may transmit the initiating fo... | 06/24/2008 |
| 7364319 | Battery-powered light A personal light including a battery power source connected in series with a light-emitting diode (LED) light source and a switching mechanism configured for non-contact actuation are disposed within an environmentally sealed chamber. A reflector is employed to maxi... | 04/29/2008 |
| 7360921 | Portable flashlight alarm clock A portable flashlight alarm clock apparatus includes a clock and flashlight assembly having an elongated housing with a body portion and a sleeve member. The housing includes a flashlight assembly and a clock assembly and the sleeve member is sized to receive the ho... | 04/22/2008 |
| 7360920 | Convertible flashlight and area light with an aperture shutter A lighting device (10) which is adapted to be converted between a flashlight mode and an area light mode includes a housing (14) to receive a power supply (28), a light source (46) associated with the housing (14) and a tubular len... | 04/22/2008 |
| 7357540 | Compact flashlight A compact flashlight is configured such that it can be coupled to a key ring, as well as various other devices, and includes a locking mechanism that inhibits accidental opening and detachment from the ring or other device. The compact flashlight is further configur... | 04/15/2008 |
| RE40171 | Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and... | 03/25/2008 |
