WILLIS ELECTRIC CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F21S NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF 3923
 
 
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 3575
 
 
 
A47G HOUSEHOLD OR TABLE EQUIPMENT 312
 
 
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 18115
 
 
 
A41G ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS122
 
 
 
F21W INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 108
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 8103
 
 
 
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES 629
 
 
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 668
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 3359

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0069,348 COMBINATORIAL LIGHT STRING PLUG AND RECEPTACLEAug 30, 17Mar 08, 18[H01R]
2017/0314,774 CONFORMAL POWER ADAPTER FOR LIGHTED ARTIFICIAL TREEMay 15, 17Nov 02, 17[A47G, F21Y, F21V, F21S, H05K]
2016/0330,823 WIRELESS DECORATIVE LIGHTING FOR ARTIFICIAL TREESMay 09, 16Nov 10, 16[F21V, H05B, H02J]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9894949 Lighted artificial tree with improved electrical connectionsNov 26, 14Feb 20, 18[A41G, F21W, F21V, F21S]
9883706 Multi-positional, locking artificial tree trunkJun 16, 15Feb 06, 18[A47G, A41G]
9887501 Modular artificial lighted tree with decorative light stringJun 15, 15Feb 06, 18[H01R, H01B, A47G, F21Y, A41G, F21W, F21V, H05B, F21S]
9883566 Control of modular lighted artificial treesMay 01, 15Jan 30, 18[A47G, F21W, F21V, H05B, F21S]
9861147 Modular lighted treeAug 29, 16Jan 09, 18[H01R, A47G, A41G, F21W, F21V, F21S]
9845925 Tangle-resistant decorative lighting assemblyOct 26, 16Dec 19, 17[H01R, F21W, F21V, F21S]
9812815 Combinatorial light string plug and receptacleNov 18, 16Nov 07, 17[H01R]
9677748 Dual-voltage lighted artificial treeDec 15, 15Jun 13, 17[F21Y, F21V, F21S]
9677749 Conformal power adapter for lighted artificial treeDec 15, 15Jun 13, 17[A47G, F21Y, F21V, H05B, F21S, H05K]
9671074 Modular tree with trunk connectorsMar 13, 14Jun 06, 17[A47G, F21W, F21S]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0335,963 LIGHTED REFLECTIVE SCULPTUREAbandonedMar 22, 13Dec 19, 13[F21V]
8608342 Wire-piercing light-emitting diode light stringsExpiredMay 25, 11Dec 17, 13[F21V]
8592845 Wire-piercing light-emitting diode lampsExpiredMay 25, 11Nov 26, 13[H01L]
8562175 Wire-piercing light-emitting diode illumination assembliesExpiredMay 25, 11Oct 22, 13[F21V]
2013/0214,691 Encapsulated light-emitting diode lampAbandonedDec 28, 12Aug 22, 13[H05B]
2013/0163,250 DECORATIVE LAMP ASSEMBLY AND LIGHT STRINGS INCLUDING A LAMP ASSEMBLYAbandonedDec 23, 11Jun 27, 13[H01R, F21V, F21S]
2011/0195,204 THREE DIMENSIONAL DISPLAYS HAVING DEFORMABLE CONSTRUCTIONSAbandonedApr 19, 11Aug 11, 11[B23P, A47G]
7943211 Three dimensional displays having deformable constructionsExpiredDec 06, 07May 17, 11[A47G, B44F, F21S]
2011/0085,327 Decorative light display with LEDsAbandonedOct 14, 09Apr 14, 11[F21V]
2010/0289,415 Energy efficient decorative lightingAbandonedMay 18, 09Nov 18, 10[H05B]
7554266 Mechanical shunt for use in a socket in a string of lightsExpiredJul 11, 08Jun 30, 09[H01R, H01J]
7329995 Serial lamp set having security warning functionsExpiredNov 08, 05Feb 12, 08[H01J]
7277024 Remote lighting control device for lamp stringExpiredSep 02, 05Oct 02, 07[H01Q]
2007/0025,104 Decorative lamps structureAbandonedAug 01, 05Feb 01, 07[F21V]
6951405 Decorative light strings with combinative treeExpiredOct 02, 03Oct 04, 05[A47G, F21S]
6854863 Multi-directional reflection decorative lighting equipmentExpiredMar 04, 03Feb 15, 05[H01R]
2004/0212,992 Construction of the tube-shaped lighting equipmentAbandonedApr 22, 03Oct 28, 04[F21S]
6431729 Decorative lighting string with filling air typeExpiredNov 09, 00Aug 13, 02[F21V]
5012397 Socket and changeable bulb housing snap fastener for Christmas light stringsExpiredAug 15, 90Apr 30, 91[F21V]
4943899 Socket and bulb snap fastener for christmas light stringsExpiredDec 06, 89Jul 24, 90[H01R]

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