John Klippenstein
11Patents
6h-index
6Co-inventors
59Inventor score
Filing activity: Oct 5, 1990 → Dec 3, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5868713A | Pneumatic retractable syringe | Emerging Cross-Sectional Technologies | 143 | Expired |
| US5069494A | Device for storage and insertion of contact lenses | Human Necessities | 32 | Expired |
| US7811259B2 | Single-use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 10 | Active |
| US10335555B2 | Single-use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 8 | Active |
| US8167848B2 | Single-use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 7 | Active |
| US8523810B2 | Single-use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 6 | Active |
| US9408983B2 | Single-use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 5 | Active |
| US9192732B2 | Single use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 4 | Active |
| US9649450B2 | Single use pneumatic safety syringe providing gas-driven needle retraction | Human Necessities | 3 | Active |
| US8117527B2 | Automated folio references | Physics | 0 | Active |
| US11295253B2 | Method and apparatus for asset management | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.