Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7673541 | Colored razor blades | Kenneth James Skrobis, Ronald J. Swanson, Eric Liu | 2010-03-09 |
| 7284461 | Colored razor blades | Kenneth James Skrobis, Ronald J. Swanson, Eric Liu | 2007-10-23 |
| 6182365 | Skin engaging member for razor blade assembly | Mingchih M. Tseng, Philip Sweeney, Domenic Vincent Apprille, Jr. | 2001-02-06 |
| 5915791 | Shaving system with improved guard structure | Yuling Yin, Mingchih M. Tseng, Philip Sweeney | 1999-06-29 |
| 5711076 | Shaving system with improved guard structure | Yuling Yin, Mingchih M. Tseng, Philip Sweeney | 1998-01-27 |