Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4461787 | Method for increasing the through-conductivity of a cellophane substrate | — | 1984-07-24 |
| 4454058 | Chemical solution for increasing the surface conductivity and/or the volume conductivity of a substrate | — | 1984-06-12 |
| 4430382 | Conductive coating | — | 1984-02-07 |
| 4382262 | Multicolor jet printing | — | 1983-05-03 |
| 4356679 | Apparatus for applying a degrading chemical to envelopes | James B. Ellis, Raymond E. Sims | 1982-11-02 |
| 4283473 | Electrophotographic sheet material | Colin H. Lewinton | 1981-08-11 |
| 4271250 | Fibrous electrophotographic sheet with a cellulose nitrate coating | Colin H. Lewinton | 1981-06-02 |
| 4228634 | Envelope opening process and composition | — | 1980-10-21 |
| 4194342 | Folded paper edge opening process | — | 1980-03-25 |