Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409663 | Tarnish resistant gold colored alloy | Norman J. LaMontagne, Jr., Malcolm Warren | 1995-04-25 |
| 5045411 | Alloy compositions | Malcolm Warren, Perry H. Berger | 1991-09-03 |
| 4640752 | Method for producing silver colored brazing alloy | Thomas M. Upson | 1987-02-03 |
| 4606797 | Method for recovery of high grade gold alloy from karat gold-clad base metal substrates | Roger W. Ramsey | 1986-08-19 |