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Class Information
Number: 340/815.4
Name: Communications: electrical > Visual indication
Description: Subject matter comprising a means for producing a visually perceptible indication of the presence, absence, or occurrence of an electrical signal.










Sub-classes under this class:

Class Number Class Name Patents
340/815.46 Audio responsive lamp 57
340/815.63 Binary indicator 30
340/815.69 Diverse indications 137
340/815.62 Electromagnetic actuator for indicator matrix 74
340/815.64 Electromagnetic rotator for indicator wheel 20
340/815.41 False signal prevention (anti-sunlight) 15
340/815.81 Grouped drop annunciators 1
340/815.42 Having light piping 160
340/815.53 Lighted alphanumeric or character indicator matrix 105
340/815.83 Movable 41
340/815.65 Multiple colors 144
340/815.78 Pointer indicator 56
340/815.44 Seven-segment indicator 48
340/815.58 Step by step positioner 14
340/815.47 Switchboard or panel type (e.g., bullseye) 94
340/815.55 Transparent or translucent indicator with means for blocking light 74
340/815.45 Using light emitting diodes 699
340/815.73 With lamp enclosed in transparent housing 74


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8711000 Wide viewing angle indicators for network devices Apr. 29, 2014
8711001 Method and apparatus for displaying system status with a wide range of viewing angle Apr. 29, 2014
8704672 Filter change alert system for an HVAC system Apr. 22, 2014
8704676 Dynamic road markers to provide visual feedback as to vehicle speed Apr. 22, 2014
8686871 Monitoring system and methods for monitoring machines with same Apr. 1, 2014
8686840 Accessory system for a vehicle Apr. 1, 2014
8681014 Indicator device in a motor vehicle Mar. 25, 2014
8674848 Queue control system Mar. 18, 2014
8665119 Electrically activated latch for aircraft stowage bins Mar. 4, 2014
8659443 Treatment area zoning system Feb. 25, 2014
8659416 Instrument for detecting and alerting during an emergency situation Feb. 25, 2014
8659435 Waterproof optically-sensing fiberless-optically-communicating vitality monitoring and alarming system, particularly for swimmers and infants Feb. 25, 2014
8653984 Integration of LED lighting control with emergency notification systems Feb. 18, 2014
8648710 System and method for playing a game based on a coin toss Feb. 11, 2014
8643504 Power distribution unit Feb. 4, 2014
8643494 Postural state attitude monitoring, caution, and warning systems and methods Feb. 4, 2014
8643484 Visual alert system for set-top box standby mode Feb. 4, 2014
8643481 Interior rearview mirror assembly with integrated indicator symbol Feb. 4, 2014
8633829 Camera security system Jan. 21, 2014
8624585 Proximity sensor Jan. 7, 2014
8624754 System and method for detecting a property of a strobe cover Jan. 7, 2014
8624755 Method and apparatus for displaying system status with a wide range of viewing angle Jan. 7, 2014
8618950 Electronic apparatus, and control method thereof Dec. 31, 2013
8614632 Method of and apparatus for controlling a source of light in accordance in a source of sound Dec. 24, 2013
8610592 Proximity switch Dec. 17, 2013
8598999 Customizable indicating instrument Dec. 3, 2013
8599034 Switch having a flat display Dec. 3, 2013
8593268 Time clock control for outside lighting Nov. 26, 2013
8587451 Laser projection system Nov. 19, 2013
8587450 Method and apparatus for displaying system status with a wide range of viewing angle Nov. 19, 2013
8587449 Wide viewing angle indicators for network devices Nov. 19, 2013
8587408 Registered 3-D optical thinfilm for remote identification Nov. 19, 2013
8576073 Gesture-based user interface for a wearable portable device Nov. 5, 2013
8564436 Wallet Oct. 22, 2013
8564453 Indicating errors in connection with devices Oct. 22, 2013
8555660 Operation unit for vehicle air conditioner and vehicle air-conditioning control apparatus using the same Oct. 15, 2013
8552883 Electronic three-dimensional surface device Oct. 8, 2013
8552877 User interface for rechargeable batteries Oct. 8, 2013
8547244 Enhanced visual feedback for touch-sensitive input device Oct. 1, 2013
8534887 Interior rearview mirror assembly for a vehicle Sep. 17, 2013
8537018 Refrigeration system management and information display Sep. 17, 2013
8538625 Display system for use in a vehicle Sep. 17, 2013
8531309 Quantification indicating circuit Sep. 10, 2013
8531308 Methods and systems for displaying a message in a wide-spectrum display Sep. 10, 2013
8525663 Wind power plant and method for operating obstacle or hazard lighting of a wind power plant Sep. 3, 2013
8525697 Exterior mirror reflective element sub-assembly with signal indicator Sep. 3, 2013
8525723 Radar detector with navigation function Sep. 3, 2013
8517278 Luminous module for microcircuit device Aug. 27, 2013
8519862 Method and apparatus for visual silent alarm indicator Aug. 27, 2013
8514094 Solar gazing globe Aug. 20, 2013

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