Technique and system for coding and identifying materials
US3964294A · kind A · utility
32Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1974 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Nov 1, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Microencapsulated spheroids containing a coded, volatile electron absorbing substance are dispersed into a material to be regulated such as crude oil in a tanker. Samples of the material such as an oil spill are collected and the source of the material is determined by electron capture gas chromatographic detection of the electron absorbing substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.