Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7370962 | Pupil regulated multifocal contact lenses | Jeffrey H. Roffman, Ganesh Narayanan Kumar, Philippe F. Jubin, Michel Guillon | 2008-05-13 |
| 7275822 | Progressive addition lenses with adjusted image magnification | Amitava Gupta, Richard J. Nason | 2007-10-02 |
| 6802606 | Multifocal contact lens pairs | Jeffrey H. Roffman, Scott Durland | 2004-10-12 |
| 6802607 | Progressive cylinder ophthalmic lenses | Jeffrey H. Roffman, Ganesh Narayanan Kumar | 2004-10-12 |
| 6582076 | Ophthalmic lenses useful in correcting astigmatism and presbyopia | Jeffrey H. Roffman | 2003-06-24 |
| 6520638 | Methods for designing multifocal ophthalmic lenses | Jeffrey H. Roffman, Philippe F. Jubin, Michael D. Skinner, Sheila B. Hickson-Curran | 2003-02-18 |
| 6203156 | Contact lenses bearing marks | Jongliang Wu, Khaled Chehab, Carl Crowe, Victor Lust, Richard J. Nason +1 more | 2001-03-20 |
| 6196685 | Method of designing and fitting multifocal lenses taking into account material properties of the lenses | Jeffrey H. Roffman, Denwood F. Ross, III, James A. Ebel | 2001-03-06 |
| 6179420 | Multifocal ophthalmic lenses | Jeffrey H. Roffman, Timothy A. Clutterbuck, Richard J. Nason, Michel Guillon | 2001-01-30 |
| 6176580 | Method of designing and fitting contact lenses taking into account material properties of the lenses | Jeffrey H. Roffman, Denwood F. Ross, III, James A. Ebel, Timothy A. Clutterbuck | 2001-01-23 |
| 6024448 | Contact lenses bearing identifying marks | Jongliang Wu, Khaled Chehab, Carl Crowe, Richard J. Nason, Jon Walker +3 more | 2000-02-15 |
| 5835192 | Contact lenses and method of fitting contact lenses | Jeffrey H. Roffman, Edgar V. Menezes, Yulin X. Lewis, Michel Guillon | 1998-11-10 |
| 5485228 | Multifocal ophthalmic lens pair | Jeffrey H. Roffman, Michel Guillon, Edgar V. Menezes | 1996-01-16 |
| 5448312 | Pupil-tuned multifocal ophthalmic lens | Jeffrey H. Roffman, Michel Guillon | 1995-09-05 |