1
Nathaniel Brese
Nathaniel E Brese, Kenneth T Reilly: Small size electroluminescent phosphor. OSRAM Sylvania, Robert F Clark, July 1, 1997: US05643496 (30 worldwide citation)

An electroluminescent phosphor composed of copper activated zinc sulfide having an average particle size less than 23 micrometers and a halflife equal to or greater than the halflife of a second phosphor having a similar composition and an average particle size of at least 25 micrometers.


2
Miguel Galvez, Maria Anc, Richard Speer, William A George: Tubular blue LED lamp with remote phosphor. Osram Sylvania, Robert F Clark, November 17, 2009: US07618157 (116 worldwide citation)

A lamp includes a linearly extending heat sink, blue-light-emitting LEDs mounted on the heat sink, and a light emitting cover mounted on the heat sink in line with the LEDs, a first portion of the cover opposite the LEDs including a phosphor that is excited by the LEDs to emit white light. The cover ...


3

4
Romano G Pappalardo, Roger B Hunt Jr: Fluorescent lamp with improved phosphor blend. GTE Products Corporation, Robert F Clark, October 24, 2000: US06137217 (62 worldwide citation)

A fluorescent lamp comprises at least one layer of a four-component phosphor blend for producing visible illumination having a white color. The quad-phosphor blend comprising a first and second red-emitting phosphor component with each red-emitting phosphor component having different visible emissio ...


5
Walter P Lapatovich: High intensity discharge lamp with only one electrode. Osram Sylvania, Robert F Clark, May 20, 2003: US06566817 (48 worldwide citation)

A high intensity discharge (HID) lamp includes a starting gas, a vaporizable fill, and only one electrode sealed within a light transmissive envelope. The one electrode produces a high intensity discharge during operation of the lamp and is connected to an inlead that extends outside the sealed enve ...


6
Ricky D Morgan, James A Giffen Jr: Method of making composite orifice for melting furnace. GTE Products Corporation, Elizabeth A Levy, Robert F Clark, December 27, 1994: US05376329 (35 worldwide citation)

A method of making a composite orifice having a tungsten core which is diffusion bonded to a molybdenum shell. Tungsten and molybdenum powders in contact with each other in a mold are isostatically pressed to form a pressed bonded composite part. The pressed, unsintered tungsten core portion of the ...


7
Richard C Marlor: Lead and arsenic free borosilicate glass and lamp containing same. Osram Sylvania, Robert F Clark, September 4, 2001: US06284686 (33 worldwide citation)

A lead and arsenic free borosilicate glass is provided which is suitable for use in electric arc discharge lamps. The glass is tungsten-sealing and provides desirable protection from ultraviolet radiation. In addition, the glass is suitable for use in glass melters not equipped with bubblers.


8
Joseph J Lenox, Albert K Fan: Process for producing a blue emitting lamp phosphor. GTE Products Corporation, Elizabeth A Levy, Robert F Clark, October 25, 1994: US05358734 (33 worldwide citation)

A fluorescent lamp comprising a sealed envelope, a pair of opposing electrodes, a fill of inert gas and mercury and a phosphor coating on the internal walls of the envelope wherein the coating contains as at least one element thereof particles of europium activated barium magnesium aluminate having ...


9
Cheryl M Forster, Anthony F Kasenga: Method of preparing manganese and lead coactivated calcium silicate phosphor. Osram Sylvania, Robert F Clark, December 5, 1995: US05472636 (32 worldwide citation)

A process for producing a manganese and lead activated calcium metasilicate phosphor having the nominal formula CaSiO.sub.3 :MN:Pb. The process involves preparing a uniform aqueous dispersion of fumed silica having an ultrafine average particle size of less than 50 nm, a calcium precursor, a mangane ...


10
Roger B Hunt, Lawrence L Hope, William J Roche: Fluorescent lamp with improved phosphor blend. GTE Products Corporation, Robert E Walter, Robert F Clark, February 3, 1998: US05714836 (31 worldwide citation)

A fluorescent lamp comprises at least one layer of a quad-phosphor blend for emitting visible illumination having a white color. The quad-phosphor blend comprising a first and second green emitting phosphor component with each green emitting phosphor component having different visible emission spect ...



Click the thumbnails below to visualize the patent trend.