Famous Patents
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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| Number | Title | Issue Date |
| 8183760 | Coils for electron discharge devices A mount (30) for a fluorescent lamp (32) has a glass flare (34) with a first portion (36) penetrating the fluorescent lamp (32) and a second portion (38) the fluorescent lamp (32). Two spaced-apart lead-in wires (4... | 05/22/2012 |
| 8183585 | Lighting module A lighting module comprising a base panel and a plurality of light-emitting diode (LED) chips attached directly to the base panel. The LED chips are in electrical communication with conductive traces on the base panel, which deliver a current to the LED chips. Vario... | 05/22/2012 |
| 8157912 | Method of converting PCA to sapphire and converted article Polycrystalline alumina (PCA) that has been doped with magnesium oxide is converted to sapphire by additionally doping the PCA with boron oxide and sintering to induce abnormal grain growth. The boron oxide may be added to an already formed green PCA ceramic shape b... | 04/17/2012 |
| 8137586 | Phosphor blend for a compact fluorescent lamp and lamp containing same A phosphor blend for a compact fluorescent lamp is described wherein the phosphor blend comprises a green-emitting Tb3+ phosphor, a Y2O3:Eu3+ phosphor, a Sr6BP5O20:Eu2+ phosphor,... | 03/20/2012 |
| 8115403 | Method of starting an HID lamp and ballast incorporating same There is provided herein a method for starting a high intensity discharge lamp and a ballast incorporating the same. In a preferred embodiment, the method comprises the steps of: (a) obtaining a cumulative probability function of breakdown times, P(t), for the lamp ... | 02/14/2012 |
| 8113686 | Guideway illuminator A guideway illumination system (100) comprises a first member (16) and a second member (18) each having at least one light source (20) and at least one of the first member (16) and the second member (18) receiving a power so... | 02/14/2012 |
| 8102121 | Single-ended ceramic discharge lamp A single-ended ceramic discharge lamp is described which has an integral optical surface such as a parabolic or elliptical reflector. The single-ended configuration eliminates the need for the mounting structures found in double-ended lamps that can interfere with t... | 01/24/2012 |
| 8076866 | Electronic ballast having current waveform control within the half wave Aspects of the invention include an electronic ballast and method for controlling current through a lamp to produce various current waveforms through the lamp. In one embodiment, the ballast samples and adjusts the current through the lamp on a micro-second time sca... | 12/13/2011 |
| 8074800 | Linear lamp cell pack A tray for supporting linear lamps in large cartons may be made to nest in one orientation and on rotation by 180 degrees may stack to form a latched array of lamp cradles. The cradle walls are formed along their lengths with alternating lengths and gaps. The altern... | 12/13/2011 |
| 8070985 | Method of making a lead-activated strontium hexaborate phosphor There is provided a method of making a SrB6O10:Pb phosphor that increases the manufactured quantity of the SrB6O10:Pb phosphor by approximately seven fold when using the same size reaction vessel, decreases the lead-contai... | 12/06/2011 |
| 8063564 | Starting aid for HID lamp An arc discharge light source (10) comprises a translucent body (12) having a hollow center 14 and oppositely disposed ends (16, 18). A cathode lead-in 20 is positioned in one of the ends (16) and terminates at a first end (... | 11/22/2011 |
| 8040061 | Ceramic discharge vessel having an opaque zone and method of making same An opaque zone in the polycrystalline (PCA) discharge vessel of a high intensity discharge lamp may be made by creating residual pores in predetermined regions of the final-sintered discharge vessel. The control over the placement of the opaque zone is achieved by f... | 10/18/2011 |
| 8022626 | Lighting module A lighting module comprising a base panel and a plurality of light-emitting diode (LED) chips attached directly to the base panel. The LED chips are in electrical communication with conductive traces on the base panel, which deliver a current to the LED chips. Vario... | 09/20/2011 |
| 7964235 | Method of treating a ceramic discharge vessel The present invention is a ceramic discharge vessel for use in high-intensity-discharge (HID) lamps. The discharge vessel has a ceramic body and at least one seal region comprised of an aluminum oxynitride material. The seal region further has a surface layer for co... | 06/21/2011 |
| 7963498 | Bracket assembly An assemblage (8) comprises an electrical connector (10) having body (12) with a tubular projection (14) having a push-through portion (16) having a first diameter and an engaging portion (18) having a second diameter larger... | 06/21/2011 |
| 7952291 | Discharge lamp having a visual-change timer A discharge lamp having a visual-change timer is described. The visual-change timer is comprised of a ceramic material that provides an indication of the cumulative operating time of the lamp. The visual-change timer is expected be a help to consumers in avoiding un... | 05/31/2011 |
| 7952282 | Brazing alloy and ceramic discharge lamp employing same There is described a brazing alloy having a first component comprising a source of molybdenum and a source of aluminum and a second component comprising boron, wherein a weight ratio of said second component to said first component is not greater than 1:20. The addi... | 05/31/2011 |
| 7936128 | Frit seal material, lamp with frit seal, and method for sealing a high intensity discharge lamp A high intensity discharge lamp includes an arc tube with a chemical fill, capillaries extended from the arc tube, electrodes fed through the capillaries into the arc tube, and a frit seal that seals the capillaries, where the frit seal includes silica (SiO2 | 05/03/2011 |
| 7935325 | Rare earth-activated aluminum nitride powders and method of making Rare earth-activated aluminum nitride powders are made using a solution-based approach to form a mixed hydroxide of aluminum and a rare earth metal, the mixed hydroxide is then converted into an ammonium metal fluoride, preferably a rare earth-substituted ammonium a... | 05/03/2011 |
| 7923932 | Short metal vapor ceramic lamp A high intensity arc discharge lamp having a short metal seal plug running hotter than typical of capillary seals, enables a lamp with a metal fill to achieve a vapor pressure higher than the one set by the cold spot temperature typically of a capillary seal lamp. C... | 04/12/2011 |
| 7923908 | Metal halide reflector lamp with beam color homogenizer A novel metal halide reflector lamp is described wherein the reflector lamp has a passive optical element to scramble, color mix, and otherwise commingle the light emitted by the metal halide burner. The optical element is placed close to the radiating plasma volume... | 04/12/2011 |
| 7897985 | LED light engine kernel and method of making the kernel A light engine kernel for a light emitting diode (LED) includes a solid body of transparent material having an index of refraction of at least 1.5. The body has a domed, light-emitting top that is an inverted parabola of revolution, a reflective sidewall that is a c... | 03/01/2011 |
| 7897098 | High total transmittance alumina discharge vessels having submicron grain size The present invention uses a post-sinter-HIP anneal to increase the total transmittance of ceramic discharge vessels comprised of a submicron-grained alumina doped with MgO. After the anneal, the submicron-grained alumina discharge vessels have high values of both t... | 03/01/2011 |
| 7846354 | Method of making red-emitting borate phosphor There is described a method of producing a red-emitting manganese and cerium co-activated gadolinium magnesium zinc pentaborate phosphor that comprises combining a hydrated hexaborate of zinc, magnesium, and manganese with oxides of Gd and Ce to form a mixture, and ... | 12/07/2010 |
| 7846353 | Method of making green-emitting borate phosphors There is described a method for the preparation of a green-emitting terbium and cerium co-activated gadolinium magnesium pentaborate phosphor that utilizes a hydrated magnesium hexaborate as a boron source. The hydrated magnesium hexaborate preferably may be represe... | 12/07/2010 |
| 7846352 | Method of producing UV-emitting magnesium pentaborate phosphors A method of producing a UV-emitting magnesium pentaborate phosphor is described. The method comprises combining a hydrated magnesium hexaborate with oxides of Y, Gd, Ce and Pr to form a mixture and firing the mixture in a slightly reducing atmosphere to form the pho... | 12/07/2010 |
| 7863068 | Method for making a light emitting diode having a P-N junction doped with one or more luminescent activator ions A light emitting diode (LED) includes a p-n junction containing luminescent activator ions. The visible emission from the activator ions preferably complementing the band edge emission of the LED in order to produce an overall white emission from the LED. In a prefe... | 01/04/2011 |
| 7800287 | Enhanced emission from pc-LEDs using IF filters White-light efficiency from a light emitting diode is enhanced by recycling inwardly penetrating light outwardly by application of a multi-layer, thin film filter between the LED die and the phosphor layer. This procedure increases the package extraction efficiency.... | 09/21/2010 |
| 7799269 | Method of sintering AIN under a methane-containing nitrogen atmosphere The present method uses a methane-containing nitrogen gas sintering atmosphere to sinter aluminum nitride (AlN) to a high transmittance. The methane gas replaces the solid carbon charge material used in prior art sintering methods as the source of gaseous carbon. Th... | 09/21/2010 |
| 7796034 | Method and system for controlling lighting A method and system for controlling lighting in a space reduces energy consumption of the light sources by changing at least one of the color rendering index (CRI) and the correlated color temperature (CCT) while maintaining illumination levels. Preferably, the meth... | 09/14/2010 |
| 7755291 | Incandescent lamp that emits infrared light and a method of making the lamp An incandescent lamp that emits infrared light and a method of making the lamp includes a filament assembly inside a polycrystalline aluminum oxide (PCA) envelope, where the filament assembly preferably has a coiled tungsten filament, solid metal ends of tungsten or... | 07/13/2010 |
| 7741780 | Ceramic discharge vessel having a sealing composition A sealing composition for ceramic discharge vessels is described. The sealing composition contains about 20 to about 40 mole percent MgO, about 20 to about 45 mole percent Y2O3, and about 20 to about 60 mole percent Al2O3 ... | 06/22/2010 |
| 7741237 | Sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics There is described a sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics comprising: a mixture of SiO2, at least one other metal oxide, and a silicon additive comprising at least one of silicon metal or a silicide. The silico... | 06/22/2010 |
| 7728495 | HID lamp with frit seal thermal control A method of making an HID lamp and an HID lamp that includes a ceramic envelope with a ceramic capillary, wherein the capillary has an electrode feed-through therein that is sealed inside the capillary by a frit seal that extends inside the capillary a first distanc... | 06/01/2010 |
| 7727429 | Core for molding a ceramic discharge vessel A method of molding a ceramic vessel includes compressing a water-soluble powder, suspending the compressed powder shape in a mold, injecting a ceramic molding mixture into the mold, and dissolving the compressed powder by flushing the vessel with water. A core for ... | 06/01/2010 |
| 7710038 | Ceramic discharge vessel having molybdenum alloy feedthrough A ceramic discharge vessel is described that is provided a feedthrough comprised of a molybdenum alloy containing at least 75 weight percent molybdenum and greater than 5 weight percent of nickel and at least one other alloying metal selected from copper and iron, w... | 05/04/2010 |
| 7682052 | Heat sink An LED lamp has a housing comprising a heat conductive body arrayed about a longitudinal axis with a tubular projection extending therefrom coaxial with the longitudinal axis. The tubular projection has a distal end attached to the heat conductive body and a proxima... | 03/23/2010 |
| 7667407 | Odor neutralizing fluorescent sunlamp A fluorescent tanning lamp having a glass envelope has an ultra-violet light reflecting coating covering at least 180° of an inside surface of the envelope; and a phosphor layer covering substantially 360° of the inside surface of the envelope, including overlying... | 02/23/2010 |
| 7659220 | Sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics There is described a sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics comprising: a mixture of SiO2, at least one other metal oxide, and a silicon additive comprising at least one of silicon metal or a silicide. The silico... | 02/09/2010 |
| 7641755 | Assembly for forming a ceramic arc discharge vessel and method of manufacture An assembly for forming a hollow, ceramic arc discharge vessel for high-intensity discharge (HID) lamps is described wherein a means for self-alignment of two molded sections is provided. In particular, the sealing surface of one section of the arc discharge vessel ... | 01/05/2010 |
