Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4585221 | Envelope forming machine with envelope blank stack sensor | — | 1986-04-29 |
| 4545846 | Envelope gumbox friction brake and safety slip clutch | Joseph D. Russo | 1985-10-08 |
| 4531038 | Radio frequency dielectric heater | John Sullivan | 1985-07-23 |
| 4506452 | Method and apparatus for RF drying of coated articles | — | 1985-03-26 |
| 4504260 | Method and apparatus for scoring and folding envelopes | — | 1985-03-12 |
| 4492308 | Quick opening envelope | David M. Meeker | 1985-01-08 |
| 4470511 | Quick opening envelope | David M. Meeker | 1984-09-11 |
| 4416651 | Envelope gummer cylinder clutch and brake | John Sullivan | 1983-11-22 |
| 4397262 | Apparatus for applying and drying sealing material to the seal flap of envelopes | John Sullivan | 1983-08-09 |
| 4388071 | Gum applying apparatus | John Sullivan | 1983-06-14 |
| 4338085 | Apparatus for manufacturing envelopes | John Sullivan | 1982-07-06 |
| 4290547 | Reclosable envelope and method of manufacture | John Sullivan | 1981-09-22 |
| 4283003 | Reclosable envelope | — | 1981-08-11 |
| 4234122 | Reclosable envelope | — | 1980-11-18 |
| 4210977 | Air cleaning apparatus | — | 1980-07-08 |