Inventor · Changchun, CN

Zhenghua YANG

1Patents
1h-index
3Co-inventors
25Inventor score

Filing activity: Oct 6, 1989 → Oct 6, 1989

Most-cited inventions

PatentTitleAreaCited byStatus
US5081281A Process for the preparation of 3,3',4,4'-biphenyltetracarboxylic acid and its derivatives Chemistry; Metallurgy 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.