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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9867800 B1

PDFFull Text
Date of Patent:
Jan. 16, 2018

Filed:

Dec. 03, 2012

Method of quenching singlet and triplet excited states of pigments, such as porphyrin compounds, particularly protoporphyrin ix, with conjugated fused tricyclic compounds have electron withdrawing groups, to reduce generation of reactive oxygen species, particularly singlet oxygen

Applicant:

Hallstar Innovations Corp., Chicago, IL (US);

Inventors:

Craig A. Bonda, Winfield, IL (US);

Shengkui Hu, Darien, IL (US);

Assignee:

Hallstar Innovations Corp., Chicago, IL (US);

Attorney:

Baker & McKenzie LLP

Primary Examiner:

Sean Basquill

Int. Cl.
CPC ...
A61K 31/277 (2006.01); A61K 8/40 (2006.01); A61K 8/49 (2006.01); A61Q 17/04 (2006.01); A61K 31/382 (2006.01); C07D 311/82 (2006.01); C07D 335/12 (2006.01); A61K 8/46 (2006.01); A61K 31/216 (2006.01); A61K 31/352 (2006.01); C07C 325/02 (2006.01); C07C 255/41 (2006.01); A61K 45/06 (2006.01); C09B 11/28 (2006.01); C09B 23/01 (2006.01); C09B 23/04 (2006.01); C09B 23/10 (2006.01);
U.S. Cl.
CPC ...
A61K 31/277 (2013.01); A61K 8/40 (2013.01); A61K 8/46 (2013.01); A61K 8/494 (2013.01); A61K 8/498 (2013.01); A61K 8/4986 (2013.01); A61K 31/216 (2013.01); A61K 31/352 (2013.01); A61K 31/382 (2013.01); A61K 45/06 (2013.01); A61Q 17/04 (2013.01); C07C 255/41 (2013.01); C07C 325/02 (2013.01); C07D 311/82 (2013.01); C07D 335/12 (2013.01); C09B 11/28 (2013.01); C09B 23/005 (2013.01); C09B 23/0058 (2013.01); C09B 23/04 (2013.01); C09B 23/105 (2013.01); C09B 23/107 (2013.01); C07C 2603/18 (2017.05); C07C 2603/24 (2017.05);
Abstract

A method of quenching excited state energy from a pigment that has been excited by absorption of light having a wavelength in the wavelength range of 290-800 nm, comprising reacting a pigment with a conjugated fused tricyclic compound having electron withdrawing groups: and

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