Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795507 | Preparation of pigmented melamine-formaldehyde polymer beads | Ji Shen | 1998-08-18 |
| 5254665 | Ammeline-melamine-formaldehyde resins (AMFR) and method of preparation | Shen Ji, Charles U. Pittman, Jr., Ruicheng Ran | 1993-10-19 |
| 5120821 | Process for producing melamine formaldehyde resins using impure melamine | Shen Ji | 1992-06-09 |
| 4832728 | Fertilizer compositions, processes of making them, and pocesses of using them | G. Graham Allan, Donald E. Freepons | 1989-05-23 |
| 4560400 | Fertilizer compositions, processes of making them and processes of using them | G. Graham Allan, Donald E. Freepons | 1985-12-24 |
| 4421545 | High strength melamine-urea fertilizer granules | — | 1983-12-20 |