Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10989845 | Method of making an array of aberrated optical elements | Steven R. Chapman, Feng Wu | 2021-04-27 |
| 8551391 | Method of making microneedles | Eng-Pi Chang, Philip Chu, Hsiao-Ken Chuang, Michael Lang, Reza Mehrabi +3 more | 2013-10-08 |
| 8268435 | Retroreflective sheeting | — | 2012-09-18 |
| 8231234 | Metallized retroreflective sheeting with increased daytime brightness | Steven R. Chapman, Feng Wu | 2012-07-31 |
| 8226249 | Metallized retroreflective sheeting with increased daytime brightness | Steven R. Chapman, Feng Wu | 2012-07-24 |
| 7922344 | Metallized retroreflective sheeting with increased daytime brightness | Steven R. Chapman, Feng Wu | 2011-04-12 |
| 7168814 | Retroreflector with controlled divergence made by the method of localized substrate stress | Dennis I. Couzin, Steven R. Chapman | 2007-01-30 |
| 7029134 | Retroreflector with controlled divergence made by the method of localized substrate stress | Dennis I. Couzin, Steven R. Chapman | 2006-04-18 |
| 6871966 | Retroreflector with controlled divergence made by the method of localized substrate stress | Dennis I. Couzin, Steven R. Chapman | 2005-03-29 |