Inventor · Zhejiang, CN

Qingfeng Dai

4Patents
2h-index
13Co-inventors
34Inventor score

Filing activity: Dec 4, 2018 → May 26, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
USD947467S1 Dog leash handle General 17 Active
US11134657B2 Pet leash preventing locking due to jerk Performing Operations; Transporting 3 Active
US11542719B2 Flexible connecting structure of prefabricated component and building main body Fixed Constructions 1 Active
US10834903B2 Double rope pet leash Human Necessities 0 Active

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