Arrangements of coloured filters or screens

Industry

CPC
F21L15/04

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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION F21L15/00Details of kinds solely applicable to the devices covered by groups F21L2/00 - F21L14/00

Current Industry

F21L15/04Arrangements of coloured filters or screens

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Light filtering system
- Patent number 9,157,586
- Issue date Oct 13, 2015
- Edward Vose Babcock
- F21 - LIGHTING
Information Patent Grant
Hand-holdable toy light tube
- Patent number 6,641,280
- Issue date Nov 4, 2003
- 3M Innovative Properties Company
- Gary B. Hanson
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Taxi hailing device
- Patent number 6,334,697
- Issue date Jan 1, 2002
- Evan Gappelberg
- F21 - LIGHTING
Information Patent Grant
Hand-holdable toy light tube with color changing film
- Patent number 6,082,876
- Issue date Jul 4, 2000
- 3M Innovative Properties Company
- Gary B. Hanson
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Water activated emergency strobe light
- Patent number 5,921,656
- Issue date Jul 13, 1999
- John F. Flood
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Fiber optic wand with illuminated figurehead
- Patent number 5,816,883
- Issue date Oct 6, 1998
- Superlights, Inc.
- Stanley Holland
- G02 - OPTICS
Information Patent Grant
Multi-functional lighting apparatus
- Patent number 5,816,688
- Issue date Oct 6, 1998
- Chen Shui-Shang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Taxi wand
- Patent number 5,642,931
- Issue date Jul 1, 1997
- TaxiWand Inc.
- Evan E. Gappelberg
- F21 - LIGHTING
Information Patent Grant
Flashlight with signaling lamp
- Patent number 5,588,739
- Issue date Dec 31, 1996
- Kyoyu Corporation
- Masashi Nakao
- F21 - LIGHTING
Information Patent Grant
Method and apparatus for handling a lightwand
- Patent number 5,519,593
- Issue date May 21, 1996
- Walterscott International Corp.
- Richard S. Hasness
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Emergency strobe light
- Patent number 5,490,050
- Issue date Feb 6, 1996
- ACR Electronics, Inc.
- Mark S. Clark
- F21 - LIGHTING
Information Patent Grant
Combination flashlight holster-lightwand device
- Patent number 5,440,465
- Issue date Aug 8, 1995
- Walterscott International Corp.
- Richard S. Hasness
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Amusement projector
- Patent number 5,367,349
- Issue date Nov 22, 1994
- Robert Zeiler
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Color changeable flashlight
- Patent number 5,014,171
- Issue date May 7, 1991
- George T. Price
- F21 - LIGHTING
Information Patent Grant
Flashlight attachment and methods of constructing and utilizing same
- Patent number 4,782,433
- Issue date Nov 1, 1988
- John G. Rombough
- F21 - LIGHTING
Information Patent Grant
Wylie-lite
- Patent number 4,740,874
- Issue date Apr 26, 1988
- Bruce E. Wylie
- F21 - LIGHTING
Information Patent Grant
Light emitting device
- Patent number 4,697,890
- Issue date Oct 6, 1987
- Byron F. Crookston
- F21 - LIGHTING
Information Patent Grant
Multi-section multi-purpose hand light
- Patent number 4,530,039
- Issue date Jul 16, 1985
- Steve S. Shin-Shi
- F21 - LIGHTING
Information Patent Grant
Signal lanterns for optional colored light emittance
- Patent number 4,291,365
- Issue date Sep 22, 1981
- Amar N. Tandon
- F21 - LIGHTING
Information Patent Grant
Flashlight magnifier attachment
- Patent number 4,225,907
- Issue date Sep 30, 1980
- John B. Erdell
- G02 - OPTICS
Information Patent Grant
Multi-color hand signal
- Patent number 4,047,799
- Issue date Sep 13, 1977
- Cross; Frances
- Howard Cross
- F21 - LIGHTING
Information Patent Grant
Safelight filter
- Patent number 3,971,929
- Issue date Jul 27, 1976
- John Buckland Erdell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
2361480
- Patent number 2,361,480
- Issue date Oct 31, 1944
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Hand-holdable toy light tube
- Publication number 20020008970
- Publication date Jan 24, 2002
- 3M Innovative Properties Company
- Gary B. Hanson
- A63 - SPORTS GAMES AMUSEMENTS

Arrangements of coloured filters or screens

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Light filtering system

Hand-holdable toy light tube

Taxi hailing device

Hand-holdable toy light tube with color changing film

Water activated emergency strobe light

Fiber optic wand with illuminated figurehead

Multi-functional lighting apparatus

Taxi wand

Flashlight with signaling lamp

Method and apparatus for handling a lightwand

Emergency strobe light

Combination flashlight holster-lightwand device

Amusement projector

Color changeable flashlight

Flashlight attachment and methods of constructing and utilizing same

Wylie-lite

Light emitting device

Multi-section multi-purpose hand light

Signal lanterns for optional colored light emittance

Flashlight magnifier attachment

Multi-color hand signal

Safelight filter

2361480

Patents Applicationslast 30 patents

Hand-holdable toy light tube