Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500845 | Process for refining lead bullion | Robert Seebeck, Jerry D. Schulz | 2013-08-06 |
| 8211207 | Process for refining lead bullion | Robert Seebeck, Jerry D. Schulz | 2012-07-03 |