| Title of Invention | "A METHOD FOR MARKING A LIQUID PETROLEUM HYDROCARBONS" |
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| Abstract | A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon at least one substituted anthraquinone dye having formula (I) see figure attached wherein X is O or S; Y is O, NR7 or S; R1 and R2 independently are hydrogen, alkyl, aryl, aralkyl, heteroalkyl, heterocyclic or alkanoyl; R3 and R5 independently are alkyl, aralkyl, heteroalkyl or heterocyclic; R4 and R6 independently are hydrogen or alkyl; R7 is hydrogen or alkyl; and wherein the substituted anthraquinone dye(s) has an absorption maximum in the range from 600 nm to 750 nm. |
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966-del-2004-Abstract-(13-12-2012).pdf
966-del-2004-Claims-(13-12-2012).pdf
966-del-2004-Correspondence Others-(13-12-2012).pdf
966-del-2004-correspondence others-(15-05-2008).pdf
966-del-2004-correspondence.pdf
966-del-2004-form-18-(15-05-2008).pdf
966-del-2004-Form-2-(13-12-2012).pdf
966-del-2004-Petition-137-(13-12-2012).pdf
966-del-2004-priority document.pdf
| Patent Number | 258924 | ||||||||||||
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| Indian Patent Application Number | 966/DEL/2004 | ||||||||||||
| PG Journal Number | 08/2014 | ||||||||||||
| Publication Date | 21-Feb-2014 | ||||||||||||
| Grant Date | 14-Feb-2014 | ||||||||||||
| Date of Filing | 27-May-2004 | ||||||||||||
| Name of Patentee | ROHM AND HAAS COMPANY | ||||||||||||
| Applicant Address | 100 INDEPENDENCE MALL WEST, PHILADELPHIA, PENNSYLVANIA, 19106-2399, USA. | ||||||||||||
Inventors:
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| PCT International Classification Number | C07C 50/34 | ||||||||||||
| PCT International Application Number | N/A | ||||||||||||
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PCT Conventions:
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