Marker dyes for petroleum products
US8257975B2 · kind B2 · utility
1Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | May 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/17
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to using a marker in a functional fluid, which survives the use of the functional fluid in an application, with a reagent solution to identify the functional fluid rapidly either before, during or after the functional fluid's use and which is a suitable method for identifying a functional fluid in the field, and which may employ the use of test wipe, or medium, that contains the reagent solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.