Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669144 | Razor blade technology | Steve S. Hahn, John Madeira, Chong-ping Peter Chou | 1997-09-23 |
| 5497550 | Shaving system | Robert A. Trotta, Steve S. Hahn, John Madeira, Chong-ping Peter Chou | 1996-03-12 |
| 5434371 | Hand-held electronic writing tool | — | 1995-07-18 |
| 5282919 | Apparatus for removing a marking from a surface | — | 1994-02-01 |
| 5158918 | Low moisture thixotropic agents, methods and uses | Gerald L. Brooks | 1992-10-27 |
| 5049532 | Method for surface treating thixotropic agents and the resultant low moisture thixotrope | Gerald L. Brooks | 1991-09-17 |
| 4968371 | Method for removing a marking from a surface | — | 1990-11-06 |
| 4966871 | Method for vacuum drying thixotropic agents and the resultant low moisture thixotrope | — | 1990-10-30 |
| 4833117 | Novel correction compositions and process for using same | Sue R. Liu | 1989-05-23 |
| 4732614 | Novel correction compositions and process for using same | Sue R. Liu | 1988-03-22 |