Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5573823 | Phenylene sulfide/biphenylene sulfide copolymer pipe | — | 1996-11-12 |
| 5266680 | Process for the preparation of poly(arylene sulfide) compositions | — | 1993-11-30 |
| 5264176 | Production of biaxially-oriented film from aromatic sulfide/ketone polymers | Michael Duane Cliffton, Rex L. Bobsein, Jon F. Geibel | 1993-11-23 |
| 5151235 | Process of making phenylene sulfide/biphenylene sulfide copolymer pipe | — | 1992-09-29 |
| 5089596 | Production of aromatic sulfide/ketone polymers with separation agent | Michael Duane Cliffton, Rex L. Bobsein, Jon F. Geibel | 1992-02-18 |
| 4898904 | Method to modify poly(aryle sulfide) resins | Michael C. Yu, Lacey E. Scoggins | 1990-02-06 |
| 4543224 | Polymer stabilization | Ronald D. Mathis | 1985-09-24 |
| 4535117 | Stabilization of polyphenylene sulfide | Ronald D. Mathis | 1985-08-13 |
| 4522867 | Biaxially oriented polyamide film | H. Wayne Hill, Jr. | 1985-06-11 |
| 4500706 | Method of producing extrusion grade poly(arylene sulfide) | Ronald D. Mathis, Gerald E. Hagler | 1985-02-19 |
| 4478969 | Polymer stabilization | Ronald D. Mathis | 1984-10-23 |
| 4445941 | Process for cleaning metal surfaces | Ronald D. Mathis | 1984-05-01 |
| 4435221 | Process for cleaning metal surfaces of poly(arylene sulfide) deposits | Ronald D. Mathis | 1984-03-06 |
| 4435222 | Process for cleaning metal surfaces of poly(arylene sulfide) deposits | Timothy W. Johnson | 1984-03-06 |
| 4434122 | Polymer stabilization | Ronald D. Mathis | 1984-02-28 |
| 4431457 | Process for cleaning metal surfaces of poly(arylene sulfide) deposits | Guy Senatore | 1984-02-14 |
| 4425288 | Process for cleaning metal surfaces | Dale O. Tieszen, Gerald E. Hagler | 1984-01-10 |
| 4418029 | Stabilized polyphenylene sulfide fiber | Ronald D. Mathis | 1983-11-29 |
| 4413081 | Polymer stabilization | Ronald D. Mathis | 1983-11-01 |
| 4411853 | Polymer stabilization | Ronald D. Mathis | 1983-10-25 |
| 4412062 | Polymer stabilization | — | 1983-10-25 |
| 4405745 | Polymer stabilization | Ronald D. Mathis | 1983-09-20 |