|
| US3968301 | 29. Okt. 1974 | 6. Juli 1976 | Monsanto Company | Pressure-sensitive record material and dye solvents therefor |
| US4093278 | 27. Dez. 1976 | 6. Juni 1978 | Monsanto Company | Dye solvents for pressure-sensitive copying systems |
| US4295888 | 27. Dez. 1976 | 20. Okt. 1981 | Imperial Chemical Industries Limited | Solvent compositions |
| US4622395 | 1. Okt. 1984 | 11. Nov. 1986 | Minnesota Mining and Manufacturing Company | Phenoxazine and phenothiazine dyes and leuco forms thereof |
| US4670374 | 12. Febr. 1986 | 2. Juni 1987 | Minnesota Mining and Manufacturing Company | Photothermographic accelerators for leuco diazine, oxazine, and thiazine dyes |
| USRE30797 | 9. Nov. 1977 | 17. Nov. 1981 | Scott Paper Company | Associated dye salts and method of forming colored indicia therewith |
| USRE30803 | 9. Nov. 1977 | 24. Nov. 1981 | Scott Paper Company | Colorless recording paper |
