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Lewis CHENG
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Hong Kong, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Folding tamper-proof case with reinforcing inserts
Patent number
11,866,236
Issue date
Jan 9, 2024
Citadel Casing Ltd
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Multi-channel flame simulation method and apparatus
Patent number
11,608,953
Issue date
Mar 21, 2023
Polygroup Macau Limited (BVI)
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Grant
Folding case and methods thereof
Patent number
11,492,173
Issue date
Nov 8, 2022
CITADEL CASING LTD
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Multi-channel flame simulation method and apparatus
Patent number
11,248,762
Issue date
Feb 15, 2022
Polygroup Macau Limited
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Grant
Folding tamper-proof case and methods thereof
Patent number
10,994,889
Issue date
May 4, 2021
CITADEL CASING LTD
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Multi-channel flame simulation method and apparatus
Patent number
10,711,963
Issue date
Jul 14, 2020
POLYGROUP MACAU LIMITED (BVI)
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Grant
Tamper-proof case systems and methods
Patent number
10,479,597
Issue date
Nov 19, 2019
CITADEL CASING LTD
Lewis Ka Hang Cheng
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Pull up tree system
Patent number
8,309,188
Issue date
Nov 13, 2012
Polygroup Macau Limited (BVI)
Lewis Cheng
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Patents Applications
last 30 patents
Information
Patent Application
FOLDING TAMPER-PROOF CASE AND METHODS THEREOF
Publication number
20220315275
Publication date
Oct 6, 2022
Citadel Casing Ltd
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
MULTI-CHANNEL FLAME SIMULATION METHOD AND APPARATUS
Publication number
20220163177
Publication date
May 26, 2022
POLYGROUP MACAU LIMITED (BVI)
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Application
FOLDING TAMPER-PROOF CASE AND METHODS THEREOF
Publication number
20210380319
Publication date
Dec 9, 2021
CITADEL CASING LTD
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
FOLDING CASE AND METHODS THEREOF
Publication number
20210380309
Publication date
Dec 9, 2021
CITADEL CASING LTD
Douglas Rumsam
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
MULTI-CHANNEL FLAME SIMULATION METHOD AND APPARATUS
Publication number
20200332976
Publication date
Oct 22, 2020
POLYGROUP MACAU LIMITED (BVI)
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Application
TAMPER-PROOF CASE SYSTEMS AND METHODS
Publication number
20180354711
Publication date
Dec 13, 2018
CITADEL CASING LTD
Lewis Ka Hang Cheng
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
MULTI-CHANNEL FLAME SIMULATION METHOD AND APPARATUS
Publication number
20180156404
Publication date
Jun 7, 2018
POLYGROUP MACAU LIMITED (BVI)
Victor Hugo Ocegueda Gallaga
F21 - LIGHTING
Information
Patent Application
Pull Up Tree System
Publication number
20110076425
Publication date
Mar 31, 2011
POLYGROUP MACAU LIMITED (BVI)
Lewis Cheng
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
PULL UP TREE SYSTEM
Publication number
20100000065
Publication date
Jan 7, 2010
Cindex Holdings Limited (a Hong Kong Corporation)
Lewis CHENG
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
OUTDOOR TREE STAND
Publication number
20090039230
Publication date
Feb 12, 2009
Cindex Holdings Limited (a Hong Kong Corporation)
Lewis CHENG
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
COLLAPSIBLE DECORATIVE LIGHT SYSTEM
Publication number
20080298064
Publication date
Dec 4, 2008
Cindex Holdings Limited (a Hong Kong Corporation)
Lewis CHENG
F21 - LIGHTING