Chak-yin Cheng

CO Comcast: 3 patents #1,192 of 4,447Top 30%

📍 Sha Tin, CN: #387 of 2,424 inventorsTop 20%

Overall (All Time): #1,155,777 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
11009195	Apparatus for simulating an open candle flame	—	2021-05-18
9958123	System for resembling an open candle flame	—	2018-05-01
9719643	System for resembling an open candle flame	—	2017-08-01
5622490	Candle holder	—	1997-04-22