Patent · US Active

Articles comprising benzopyran colorants, method of manufacture, and method of use

US7351461B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Yogendrasinh Bharatsinh Chauhan · Valsad, IN
Adil Minoo Dhalla · Mumbai, IN
Rahul R. Khanwelkar · Jamkhed, IN
Krishnamoorthy Sivakumar · Bengaluru, IN
Kiran Puthamane · Jamkhed, IN

Key dates

Filing date	Jun 5, 2007
Grant date	Apr 1, 2008
Priority date	—
Expiry date	Jun 5, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1352
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An article comprising the compound of Formula (I)wherein X is hydrogen or a radical of Formula (II), R1 independently at each occurrence is a C1-C20 aliphatic radical, a C3-C10 cycloaliphatic radical, or a C3-C10 aromatic radical; R2, R3, R4 and R5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C1-C20 aliphatic radical, a C3-C20 cycloaliphatic radical, or a C6-C20 aromatic radical; and “n”, “q”, and “p” are each independently integers having a value of 0 to 3, and “m” is an integer having a value of 0 to 4.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.