Hans Steffen
16Patents
11h-index
23Co-inventors
72Inventor score
Filing activity: Jul 8, 1977 → Dec 27, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4886499A | Portable injection appliance | Emerging Cross-Sectional Technologies | 781 | Expired |
| US5848990A | Device for introducing active substance into a patient | Human Necessities | 328 | Expired |
| US4614723A | Porphyrin derivatives as fluorescent markers for immunoassays | Emerging Cross-Sectional Technologies | 133 | Expired |
| US4411894A | Pharmaceutical preparations | Human Necessities | 100 | Expired |
| US5747066A | Mixed micelles | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6730319B2 | Pharmaceutical compositions having depressed melting points | Human Necessities | 55 | Expired |
| US4158707A | Parenteral preparations | Human Necessities | 54 | Expired |
| US4882164A | Parenteral micelle solutions | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4649155A | Injectable solutions | Human Necessities | 18 | Expired |
| US6030953A | Pharmaceutical composition containing chitosan | Human Necessities | 18 | Expired |
| US6562329B2 | Method of treating high plasma cholesterol levels | Human Necessities | 13 | Expired |
| US6703369B1 | Lipase inhibiting compositions | Human Necessities | 3 | Expired |
| US11876719B2 | Systems and methods for managing transmission control protocol (TCP) acknowledgements | Electricity | 2 | Active |
| US8012494B2 | Pharmaceutical compositions containing lipase inhibitors | Human Necessities | 0 | Active |
| US12316548B2 | Systems and methods for managing transmission control protocol (TCP) acknowledgements | Electricity | 0 | Active |
| US11882051B2 | Systems and methods for managing transmission control protocol (TCP) acknowledgements | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.