Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9027443 | Method of making a razor | Andrew Zhuk, Weili Yu, Hoang Mai Trankiem, Neville Sonnenberg, Kevin Powell +5 more | 2015-05-12 |
| 7882640 | Razor blades and razors | Andrew Zhuk, Weili Yu, Hoang Mai Trankiem, Neville Sonnenberg, Kevin Powell +5 more | 2011-02-08 |
| 7448135 | Multi-blade razors | Andrew Zhuk, Weili Yu, Hoang Mai Trankiem, Neville Sonnenberg, Kevin Powell +5 more | 2008-11-11 |
| 5416973 | Razors | Frank E. Brown, Oliver David Oglesby, Brian Oldroyd | 1995-05-23 |
| 5347716 | Safety razors | — | 1994-09-20 |
| 5191712 | Safety razors and guards | Oliver David Oglesby, Brian Oldroyd | 1993-03-09 |