3701043
3863075
3889147
Method and apparatus for modulating the perceptible intensity of a light emitting display
Patent #: 4149111
Issued on: 04/10/1979
Inventor: Coates, Jr.
Analogue voltage indicator with sequence of light emitting diodes
Patent #: 4243985
Issued on: 01/06/1981
Inventor: Quayle
Apparatus for irradiating substances curable by radiation
Patent #: 4298806
Issued on: 11/03/1981
Inventor: Herold
Light emitting diode
Patent #: 4301461
Issued on: 11/17/1981
Inventor: Asano
Electrically synchronized rotating light system
Patent #: 4319306
Issued on: 03/09/1982
Inventor: Stanuch
Light emitting diodes with high external quantum efficiency
Patent #: 4342944
Issued on: 08/03/1982
Inventor: SpringThorpe
Lamp assembly
Patent #: 4390931
Issued on: 06/28/1983
Inventor: Gorick , et al.
More ...
Automatic power control for modulated LED photoelectric devices
Patent #: 4598198
Issued on: 07/01/1986
Inventor: Fayfield
Rotating display element and display unit using the same
Patent #: 4615131
Issued on: 10/07/1986
Inventor: Wakatake
Portable traffic control signal device
Patent #: 4616225
Issued on: 10/07/1986
Inventor: Woudenberg
Light emitting diode array
Patent #: 4630180
Issued on: 12/16/1986
Inventor: Muraki , et al.
Light emitting diode lamp and method for producing thereof
Patent #: 4630183
Issued on: 12/16/1986
Inventor: Fujita
Unit of light emitting diode arrays
Patent #: 4633280
Issued on: 12/30/1986
Inventor: Takasu
Vehicle marker light
Patent #: 4654629
Issued on: 03/31/1987
Inventor: Bezos , et al.
Optical device for concentrating the light radiation emitted by a light emitting diode, and a light emitting diode comprising a device of this nature
Patent #: 4703219
Issued on: 10/27/1987
Inventor: Mesquida
Apparatus for curing dental restorative composites
Patent #: 4716296
Issued on: 12/29/1987
Inventor: Bussiere , et al.
Integrated semiconductor light emitting element with oscillation wavelength and phase modulated light output
Patent #: 4720835
Issued on: 01/19/1988
Inventor: Akiba , et al.
Headlight for vehicle
Patent #: 4799135
Issued on: 01/17/1989
Inventor: Inukai , et al.
Blue light emitting diode formed in silicon carbide
Patent #: 4918497
Issued on: 04/17/1990
Inventor: Edmond
Light emitting diode lamp
Patent #: 4929866
Issued on: 05/29/1990
Inventor: Murata, et al.
Light emitting diode lamp
Patent #: 4935665
Issued on: 06/19/1990
Inventor: Murata
Traffic signal using light-emitting diodes
Patent #: 4954822
Issued on: 09/04/1990
Inventor: Borenstein
Pure green light emitting diodes and method of manufacturing the same
Patent #: 4965644
Issued on: 10/23/1990
Inventor: Kawabata, et al.
Method of production of light emitting diodes
Patent #: 4966862
Issued on: 10/30/1990
Inventor: Edmond
Light emitting semiconductor having a rear reflecting surface
Patent #: 4990970
Issued on: 02/05/1991
Inventor: Fuller
Blue light emitting diode formed in silicon carbide
Patent #: 5027168
Issued on: 06/25/1991
Inventor: Edmond
Rotating display element and display unit using the same
Patent #: 5045767
Issued on: 09/03/1991
Inventor: Wakatake
Heat dissipating high intensity lamp housing
Patent #: 5050055
Issued on: 09/17/1991
Inventor: Lindsay, et al.
D324921
Signal lamp composed of light emitting diodes for vehicle
Patent #: 5093768
Issued on: 03/03/1992
Inventor: Ohe
Non-linear signalling device for vehicles
Patent #: 5097397
Issued on: 03/17/1992
Inventor: Stanuch, et al.
Illuminated traffic control sign
Patent #: 5097612
Issued on: 03/24/1992
Inventor: Williams
Lamp assembly for motor vehicle
Patent #: 5101326
Issued on: 03/31/1992
Inventor: Roney
Encapsulated light emitting diode and method for encapsulation
Patent #: 5122943
Issued on: 06/16/1992
Inventor: Pugh
Traffic-related message signal using light-emitting diodes
Patent #: 5136287
Issued on: 08/04/1992
Inventor: Borenstein
Light emitting diode device and method for producing same
Patent #: 5187547
Issued on: 02/16/1993
Inventor: Niina, et al.
Discharge lamp device
Patent #: 5220235
Issued on: 06/15/1993
Inventor: Wakimizu, et al.
Lantern and a lens for the same
Patent #: 5224773
Issued on: 07/06/1993
Inventor: Arimura
Light-emitting diode with a thick transparent layer
Patent #: 5233204
Issued on: 08/03/1993
Inventor: Fletcher, et al.
Lamp/reflector assembly and electric lamp for use therein
Patent #: 5235498
Issued on: 08/10/1993
Inventor: Van Dulmen, et al.
Light emitting element array substrate with reflecting means
Patent #: 5283425
Issued on: 02/01/1994
Inventor: Imamura
Battery-powered flashing superluminescent light emitting diode safety warning light
Patent #: 5313187
Issued on: 05/17/1994
Inventor: Choi, et al.
Strip lighting system using light emitting diodes
Patent #: 5321593
Issued on: 06/14/1994
Inventor: Moates
Light emitting diode array with dovetail
Patent #: 5357123
Issued on: 10/18/1994
Inventor: Sugawara
Illuminated safety helmet
Patent #: 5357409
Issued on: 10/18/1994
Inventor: Glatt
Discharge tube having a double-tube type structure
Patent #: 5359255
Issued on: 10/25/1994
Inventor: Kawai, et al.
Mirror assembly
Patent #: 5361190
Issued on: 11/01/1994
Inventor: Roberts, et al.
Fiber optic detection system
Patent #: 5362971
Issued on: 11/08/1994
Inventor: McMahon, et al.
Method for producing a light emitting diode having transparent substrate
Patent #: 5403916
Issued on: 04/04/1995
Inventor: Watanabe, et al.
Light emitting diode array and production method of the light emitting diode
Patent #: 5406095
Issued on: 04/11/1995
Inventor: Koyama, et al.
Replaceable intelligent pixel module for large-scale LED displays
Patent #: 5410328
Issued on: 04/25/1995
Inventor: Yoksza, et al.
Illuminated distress warning sign
Patent #: 5419065
Issued on: 05/30/1995
Inventor: Lin
Light emitting diode and light emitting diode array having uniform light distribution
Patent #: 5420444
Issued on: 05/30/1995
Inventor: Sawase, et al.
Programmable emergency signalling device and system
Patent #: 5422623
Issued on: 06/06/1995
Inventor: Bader, et al.
Large scale display using leds
Patent #: 5450301
Issued on: 09/12/1995
Inventor: Waltz, et al.
Light source and technique for mounting light emitting diodes
Patent #: 5475241
Issued on: 12/12/1995
Inventor: Harrah, et al.
Light emitting device comprising an organic LED array on an ultra thin substrate and process for forming same
Patent #: 5482896
Issued on: 01/09/1996
Inventor: Tang
LED signalling light
Patent #: 5490049
Issued on: 02/06/1996
Inventor: Montalan, et al.
Light emitting diode and process for fabricating the same
Patent #: 5491350
Issued on: 02/13/1996
Inventor: Unno, et al.
Superluminescent edge emitting device with apparent vertical light emission and method of making
Patent #: 5498883
Issued on: 03/12/1996
Inventor: Lebby, et al.
Method and apparatus for improving the performance of light emitting diodes
Patent #: 5514627
Issued on: 05/07/1996
Inventor: Lowery, et al.
Method for encapsulating light emitting diodes
Patent #: 5516727
Issued on: 05/14/1996
Inventor: Broom
Semiconductor light emitting device
Patent #: 5519720
Issued on: 05/21/1996
Inventor: Hirano, et al.
Lighting system for increasing brightness to a light guide
Patent #: 5526237
Issued on: 06/11/1996
Inventor: Davenport, et al.
Led array vehicle lamp
Patent #: 5528474
Issued on: 06/18/1996
Inventor: Roney, et al.
Clearance and side marker lamp
Patent #: 5567036
Issued on: 10/22/1996
Inventor: Theobald, et al.
Light emitting diode fabricated with resistors for variable light intensity
Patent #: 5569939
Issued on: 10/29/1996
Inventor: Choi
Light emitting diode lamp
Patent #: 5575459
Issued on: 11/19/1996
Inventor: Anderson
Marker apparatus
Patent #: 5580156
Issued on: 12/03/1996
Inventor: Suzuki, et al.
Marker light utilizing light emitting diodes disposed on a flexible circuit board
Patent #: 5585783
Issued on: 12/17/1996
Inventor: Hall
Illumination device
Patent #: 5593223
Issued on: 01/14/1997
Inventor: Koizumi
Method of fabricating an electro-optic integrated circuit having light emitting diodes
Patent #: 5612231
Issued on: 03/18/1997
Inventor: Holm, et al.
Multiwavelength LED devices and methods of fabrication
Patent #: 5625201
Issued on: 04/29/1997
Inventor: Holm, et al.
5627851
Light emitting element and array of light emitting elements for light source
Patent #: 5631474
Issued on: 05/20/1997
Inventor: Saitoh
LED vehicle lamp assembly
Patent #: 5632551
Issued on: 05/27/1997
Inventor: Roney, et al.
Portable light emitting apparatus with a semiconductor emitter array
Patent #: 5634711
Issued on: 06/03/1997
Inventor: Kennedy, et al.
Boat safety lighting apparatus and method of using same
Patent #: 5636916
Issued on: 06/10/1997
Inventor: Sokolowski
Semiconductor light emitting diode
Patent #: 5656829
Issued on: 08/12/1997
Inventor: Sakaguchi, et al.
Power supply for light emitting diode array
Patent #: 5661645
Issued on: 08/26/1997
Inventor: Hochstein
Light emitting diode structure
Patent #: 5661742
Issued on: 08/26/1997
Inventor: Huang, et al.
Light source for use in leak detection in heating, ventilating, and air conditioning systems that utilize environmentally-safe materials
Patent #: 5674000
Issued on: 10/07/1997
Inventor: Kalley
Solid state rotary apparent beacon
Patent #: 5694112
Issued on: 12/02/1997
Inventor: VannRox, et al.
Low power drain illuminated sign
Patent #: 5697175
Issued on: 12/16/1997
Inventor: Schwartz
Method for manufacturing porous blue light emitting diode
Patent #: 5705047
Issued on: 01/06/1998
Inventor: Lee
Method of manufacturing a light emitting diode
Patent #: 5707891
Issued on: 01/13/1998
Inventor: Izumi, et al.
LED retrolift lamp for exit signs
Patent #: 5726535
Issued on: 03/10/1998
Inventor: Yan
Semiconductor light emitting diode producing visible light
Patent #: 5739552
Issued on: 04/14/1998
Inventor: Kimura, et al.
Power and communications link between a tractor and trailer
Patent #: 5739592
Issued on: 04/14/1998
Inventor: Rigsby, et al.
Illuminated safety helmet with layer for electrically connecting light emitting diodes
Patent #: 5758947
Issued on: 06/02/1998
Inventor: Glatt
Lamp having protective dome
Patent #: 5760531
Issued on: 06/02/1998
Inventor: Pederson
Thermally protected LED array
Patent #: 5785418
Issued on: 07/28/1998
Inventor: Hochstein
Light emitting diode having transparent conductive oxide formed on the contact layer
Patent #: 5789768
Issued on: 08/04/1998
Inventor: Lee, et al.
Transparent substrate light emitting diodes with directed light output
Patent #: 5793062
Issued on: 08/11/1998
Inventor: Kish, Jr., et al.
Electronic display sign
Patent #: 5796376
Issued on: 08/18/1998
Inventor: Banks
Fault locating device, system and method
Patent #: 5804822
Issued on: 09/08/1998
Inventor: Brass, et al.
Portable traffic signals
Patent #: 5805081
Issued on: 09/08/1998
Inventor: Fikacek
LED beacon light
Patent #: 5806965
Issued on: 09/15/1998
Inventor: Deese
Light emitting diode array and optical image forming apparatus with light emitting diode array
Patent #: 5838024
Issued on: 11/17/1998
Inventor: Masuda, et al.
Solid state light system
Patent #: 5838247
Issued on: 11/17/1998
Inventor: Bladowski
Integrally formed linear light strip with light emitting diodes
Patent #: 5848837
Issued on: 12/15/1998
Inventor: Gustafson
LED traffic light and method of manufacture and use thereof
Patent #: 5898381
Issued on: 04/27/1999
Inventor: Gartner, et al.
Portable large scale image display system
Patent #: 5900850
Issued on: 05/04/1999
Inventor: Bailey, et al.
Warning beacon
Patent #: 5929788
Issued on: 07/27/1999
Inventor: Vukosic
Multi-functional tactical flashlight
Patent #: 5931562
Issued on: 08/03/1999
Inventor: Arato
Light beam scanning pen, scan module for the device and method of utilization
Patent #: 5932860
Issued on: 08/03/1999
Inventor: Plesko
Cart retriever vehicle
Patent #: 5934694
Issued on: 08/10/1999
Inventor: Schugt, et al.
Renewable energy flashlight
Patent #: 5975714
Issued on: 11/02/1999
Inventor: Vetorino, et al.
Modular LED messaging sign panel and display system
Patent #: 5990802
Issued on: 11/23/1999
Inventor: Maskeny
Illuminated sign assembly
Patent #: 6009650
Issued on: 01/04/2000
Inventor: Lamparter
Rotating display
Patent #: 6018899
Issued on: 02/01/2000
Inventor: Hanitz
Illumination device using pulse width modulation of a LED
Patent #: 6028694
Issued on: 02/22/2000
Inventor: Schmidt
Method and apparatus for an L.E.D. flashlight
Patent #: 6095661
Issued on: 08/01/2000
Inventor: Lebens, et al.
Apparatus for curing resin in dentistry
Patent #: 6102696
Issued on: 08/15/2000
Inventor: Osterwalder, et al.
Portable traffic light assembly
Patent #: 6118388
Issued on: 09/12/2000
Inventor: Morrison
Photopolymerization apparatus
Patent #: 6159005
Issued on: 12/12/2000
Inventor: Herold, et al.
Method and apparatus for leak detection and non-destructive testing
Patent #: 6177678
Issued on: 01/23/2001
Inventor: Brass, et al.
Light emitting diode 360° warning lamp Patent #: 6183100
Issued on: 02/06/2001
Inventor: Suckow, et al.
July 28, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
