Growing community of inventors

Guangdong, China

Changsong Ma

Average Co-Inventor Count = 4.00

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 = 0

Changsong Ma ↔ Wei Gao (1 patent)Changsong Ma ↔ Hong Dai (1 patent)Changsong Ma ↔ Yuancheng Guo (1 patent)Changsong MaChangsong Ma (1 patent)Wei GaoWei Gao (8 patents)Hong DaiHong Dai (1 patent)Yuancheng GuoYuancheng Guo (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Osram Gmbh (1 from 756 patents)


1 patent:

1. 8917030 - Electronic ballast for lighting unit and lighting apparatus

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12/16/2025
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