Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4740254 | Pitting resistant duplex stainless steel alloy | Allan P. Castillo, John Charles Rogers | 1988-04-26 |
| 4612069 | Pitting resistant duplex stainless steel alloy | Allan P. Castillo, John Charles Rogers | 1986-09-16 |