Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6626990 | Use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments | Suruliappa Gowder Jeganathan, James B. Ganci | 2003-09-30 |
| 6441174 | Process for preparing bis(hydroxymethyl)perylenetetracarboximide | — | 2002-08-27 |
| 6361594 | Direct preparation of pyrrolo[3,4-C]pyrroles | — | 2002-03-26 |
| 6348595 | Process for preparing | — | 2002-02-19 |
| 6313300 | Oxidation process for preparing quinacridone pigments | — | 2001-11-06 |
| 6248165 | Mixed crystals and solid solutions of 1,4-diketopyrrolopyrroles | Fridolin Babler, Zhimin Hao, Abul Iqbal | 2001-06-19 |
| 6057449 | Direct preparation of pyrrolo[3,4-c]pyrroles | — | 2000-05-02 |
| 6036766 | Mixed crystals and solid solutions of 1,4-diketopyrrolopyrroles | Fridolin Babler, Zhimin Hao, Abul Iqbal | 2000-03-14 |
| 5919945 | Process for preparing diketopyrrolopyrrole derivatives | — | 1999-07-06 |
| 5840907 | Process for preparing diketopyrrolopyrrole derivatives | — | 1998-11-24 |
| 5827364 | Pigment compositions | — | 1998-10-27 |
| 5785750 | 1,4-diketo-3,6-diarylpyrolo3,4-c! pyrrole | — | 1998-07-28 |
| 5786487 | 1,4-diketo-3,6-diarylpyrolo3,4-C!pyrrole pigment derivatives | — | 1998-07-28 |
| 5618343 | Pigment compositions for coatings | Edward E. Jaffe | 1997-04-08 |
| 5529623 | Pigmentary solid solutions of pyrrolo[3,4-c]pyrroles and quinacridones | James B. Ganci, Edward E. Jaffe | 1996-06-25 |
| 5472496 | Solid solutions of pyrrolo-[3.4-c]-pyrroles with quinacridonequinones | Lindsay Kilmurry, Edward E. Jaffe | 1995-12-05 |
| 5457203 | Pigmentary synthesis of quinacridone solid solutions | Edward E. Jaffe | 1995-10-10 |
| 5424429 | Preparation of pigmentary 2,9-dichloroquinacridone | Donald L. Bauman, Edward E. Jaffe | 1995-06-13 |
| 5281269 | Aqueous process for preparation of modified beta quinacridone | James B. Ganci, Walter Zukowski | 1994-01-25 |