Certain intracyclic or extracyclic phosphorous containing coumarins useful as laser dyes
US4727144A · kind A · utility
1Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Mar 31, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/213
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Phosphonocoumarins and phosphacoumarin lasing dyes are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.