Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924840 | Method of extracting contents from envelopes | William Charron, George H. Bingham, James R. Sencenbaugh | 1999-07-20 |
| 5470182 | Envelope opening machine | Burton J. Rosensweig | 1995-11-28 |
| 5156515 | Machine for extracting contents from envelopes | William Charron, George H. Bingham, James R. Sencenbaugh | 1992-10-20 |
| D299774 | Envelope conveyor/stacker | — | 1989-02-07 |
| 4576287 | Apparatus and method for checking the contents of envelopes and sorting documents by thickness | George H. Bingham, Burton J. Rosensweig | 1986-03-18 |
| D278250 | Envelope power conveyor stacker | Burton J. Rosensweig, George H. Bingham | 1985-04-02 |
| D254059 | Envelope power stacker | — | 1980-01-29 |