Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9855665 | Strengthened razor blade | John Madeira | 2018-01-02 |
| 9598761 | Strengthened razor blade | John Madeira | 2017-03-21 |
| 9248579 | Razors and razor cartridges | Joseph Allan DePuydt, Steve S. Hahn, John Madeira, Kenneth James Skrobis, Neville Sonnenberg | 2016-02-02 |
| 9079321 | Razor blades | Oliver Claus, Joseph Allan DePuydt, Steve S. Hahn, Yongqing Ju, John Madeira +3 more | 2015-07-14 |
| 8349093 | Method of plasma nitriding of alloys via nitrogen charging | Clark V. Cooper, Bill C. Giessen | 2013-01-08 |
| 7966909 | Process of forming a razor blade | John Madeira, Arutiun P. Ehiasarian, Papken Hovsepian, Neville Sonnenberg | 2011-06-28 |
| 7695573 | Method for processing alloys via plasma (ion) nitriding | Clark V. Cooper, Bill C. Giessen, Raymond C. Benn, Edward H. Bittner, Harsh Vinayak | 2010-04-13 |
| 7556699 | Method of plasma nitriding of metals via nitrogen charging | Clark V. Cooper, Bill C. Giessen | 2009-07-07 |
| 5593514 | Amorphous metal alloys rich in noble metals prepared by rapid solidification processing | Bill C. Giessen, Sunil V. Gokhale | 1997-01-14 |