Growing community of inventors

Qingdao, China

Longfei Yan

Average Co-Inventor Count = 2.00

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 = 10

Longfei Yan ↔ Yongqiang Sui (1 patent)Longfei YanLongfei Yan (1 patent)Yongqiang SuiYongqiang Sui (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Prinx Chengshan (qingdao) Industrial Research and Design Co., Ltd. (1 from 13 patents)


1 patent:

1. D932423 - Tire

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as of
12/11/2025
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