Robert B. Steffen
37Patents
17h-index
31Co-inventors
81Inventor score
Filing activity: Mar 22, 2000 → Aug 24, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6367929B1 | Hydrogel with internal wetting agent | Physics | 335 | Expired |
| US6822016B2 | Biomedical devices containing internal wetting agents | Human Necessities | 302 | Expired |
| US7052131B2 | Biomedical devices containing internal wetting agents | Physics | 216 | Expired |
| US6943203B2 | Soft contact lenses | Chemistry; Metallurgy | 150 | Expired |
| US7461937B2 | Soft contact lenses displaying superior on-eye comfort | Performing Operations; Transporting | 114 | Expired |
| US7691916B2 | Biomedical devices containing internal wetting agents | Physics | 103 | Active |
| US6849671B2 | Contact lenses | Physics | 102 | Expired |
| US7666921B2 | Biomedical devices containing internal wetting agents | Human Necessities | 92 | Expired |
| US8450387B2 | Biomedical devices containing internal wetting agents | Human Necessities | 77 | Active |
| US8399538B2 | Contact lenses | Physics | 68 | Active |
| US7825170B2 | Contact lenses | Physics | 52 | Active |
| US6478423B1 | Contact lens coating selection and manufacturing process | Physics | 49 | Expired |
| US7649058B2 | Biomedical devices containing internal wetting agents | Physics | 46 | Active |
| US7841716B2 | Comfortable ophthalmic device and methods of its production | Performing Operations; Transporting | 45 | Expired |
| US6861123B2 | Silicone hydrogel contact lens | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7521488B2 | Contact lenses | Physics | 21 | Expired |
| US8168720B2 | Biomedical devices containing internal wetting agents | Human Necessities | 18 | Active |
| US8431669B2 | Biomedical devices containing internal wetting agents | Human Necessities | 17 | Active |
| US8895687B2 | Biomedical devices containing internal wetting agents | Human Necessities | 11 | Active |
| US8796353B2 | Biomedical devices containing internal wetting agents | Human Necessities | 11 | Active |
| US7422710B2 | Method for manufacturing a contact lens | Emerging Cross-Sectional Technologies | 9 | Active |
| US10254443B2 | Biomedical devices containing internal wetting agents | Human Necessities | 6 | Active |
| US9097914B2 | Biomedical devices containing internal wetting agents | Human Necessities | 5 | Active |
| US8696115B2 | Comfortable ophthalmic device and methods of its production | Performing Operations; Transporting | 5 | Active |
| US9958577B2 | Biomedical devices containing internal wetting agents | Human Necessities | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.