Growing community of inventors

Hong Kong, China

Elmer Cheng

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 2

Elmer ChengVictor Ocegueda (2 patents)Elmer ChengDong Sheng Xu (2 patents)Elmer ChengElmer Cheng (2 patents)Victor OceguedaVictor Ocegueda (5 patents)Dong Sheng XuDong Sheng Xu (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Polygroup Macau Limited (bvi) (2 from 106 patents)


2 patents:

1. 10415310 - Safety mechanical barrier and system for above-ground pool ladders

2. 10113361 - Safety mechanical barrier and system for above-ground pool ladders

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as of
12/14/2025
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