E Guan
6Patents
5h-index
5Co-inventors
48Inventor score
Filing activity: Jun 4, 2008 → Jan 27, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8475415B2 | Positive displacement stopper for a pre-filled syringe | Human Necessities | 30 | Active |
| US8740856B2 | Stoppers used in pre-filled syringes | Human Necessities | 25 | Active |
| US8740854B2 | Stopper and plunger rod for a pre-filled syringe | Human Necessities | 21 | Active |
| US9592346B2 | Stoppers used in pre-filled syringes | Human Necessities | 11 | Active |
| US9649444B2 | Positive displacement stopper for a pre-filled syringe | Human Necessities | 7 | Active |
| US10183118B2 | Stoppers used in pre-filled syringes | Human Necessities | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.