Inventor · Jacksonville Beach, FL, US

Robert B. Steffen

37Patents
17h-index
31Co-inventors
81Inventor score

Filing activity: Mar 22, 2000 → Aug 24, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
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.