Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227033 | Electrolytic etching of metals to reveal internal quality | John H. Kelly | 1993-07-13 |
| 5186796 | Method and apparatus for electrolytic etching of metals | John H. Kelly | 1993-02-16 |
| 5061352 | Electrolytic etching of metals to reveal internal quality | John H. Kelly | 1991-10-29 |
| 4612042 | Method for automatically fluxing and casting samples | John H. Kelly | 1986-09-16 |
| 4563146 | Apparatus for automatically fluxing and casting samples | John H. Kelly | 1986-01-07 |