Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387215 | Use of acrylamide copolymer to reduce stickies deposits | Alan J. Schellhamer, Stephen R. Kurowsky | 2002-05-14 |
| 6077394 | Retention and drainage in alkaline fine paper | Duane R. Palmateer, James R. Yarnell | 2000-06-20 |
| 5674362 | Method for imparting strength to paper | Richard T. Underwood, Robert J. Jasion, Stephen P. Hoke | 1997-10-07 |
| 4483959 | Organic pigments | William W. Maslanka | 1984-11-20 |
| 4469555 | Organic pigments | William W. Maslanka | 1984-09-04 |
| 4456724 | Organic pigments | William W. Maslanka | 1984-06-26 |
| 4434267 | Organic pigments | William W. Maslanka | 1984-02-28 |
| 4426483 | Organic pigments | William W. Maslanka | 1984-01-17 |
| 4414353 | Organic pigments | William W. Maslanka | 1983-11-08 |
| 4404310 | Organic pigments | William W. Maslanka | 1983-09-13 |
| 4403062 | Organic pigments | William W. Maslanka | 1983-09-06 |
| 4403063 | Organic pigments | William W. Maslanka | 1983-09-06 |
| 4369292 | Organic pigments | William W. Maslanka | 1983-01-18 |
| 4353818 | Organic pigments | William W. Maslanka | 1982-10-12 |
| 4349641 | Organic pigments | William W. Maslanka | 1982-09-14 |
| 4348257 | Organic pigments | William W. Maslanka | 1982-09-07 |
| 4343729 | Organic pigments | William W. Maslanka | 1982-08-10 |
| 4311809 | Organic pigments | William W. Maslanka | 1982-01-19 |
| 4293666 | Organic pigments | William W. Maslanka | 1981-10-06 |
| 4293667 | Organic pigments | William W. Maslanka | 1981-10-06 |
| 4282060 | Organic pigments | William W. Maslanka | 1981-08-04 |
| 4281082 | Organic pigments | William W. Maslanka | 1981-07-28 |
| 4235982 | Organic pigments | William W. Maslanka | 1980-11-25 |
| 4196253 | Paper coated with binder and organic pigment particles | — | 1980-04-01 |