For the Inventor, By the Inventor

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Evanston, IL, United States of America

Hoffman/barrett, L.l.c.

USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 94

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5 inventors (with patents filed for the assignee):

Brian M Hoffman (3 out of 3 patents)

Anthony G M Barrett (1 out of 10 patents)

Evan R Trivedi (1 out of 1 patent)

4. Anthony G Barrett (1 out of 1 patent)

5. Anthony Gm Barrett (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 8540967 - Porphyrazine optical and dual optical/MR contrast and therapeutic agents (2013-09-24),

2. 5912341 - Heteroatom-functionalized porphyrazines and multimetallic complexes and (1999-06-15),

3. 5675001 - Heteroatom-functionalized porphyrazines and multimetallic complexes and (1997-10-07),

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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#56 in Evanston, IL

#3,451 in Illinois

#73,766 in US

Evanston, IL, United States of America

Hoffman/barrett, L.l.c.

Forward Citations = 94

5 inventors:

Brian M Hoffman (3 out of 3 patents)

Anthony G M Barrett (1 out of 10 patents)

Evan R Trivedi (1 out of 1 patent)

4. Anthony G Barrett (1 out of 1 patent)

5. Anthony Gm Barrett (1 out of 1 patent)

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