Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924840 | Method of extracting contents from envelopes | William Charron, Edward A. Krupotich, George H. Bingham | 1999-07-20 |
| 5156515 | Machine for extracting contents from envelopes | William Charron, Edward A. Krupotich, George H. Bingham | 1992-10-20 |