Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-10-17
2006-10-17
Marschel, Ardin H. (Department: 1614)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S145000, C514S427000
Reexamination Certificate
active
07122569
ABSTRACT:
New compounds useful in photodynamic therapy are of the formulaand their 1,4-diene isomersand the metallated and/or labeled and/or conjugated forms thereofwherein each R1is independently alkyl (1–6C);each n is independently an integer of 0–6; andR2is vinyl or a derivative form thereof.
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Boch Ronald E.
Dolphin David
Hunt David W. C.
Jain Ashok
Levy Julia G.
Gembeh Shirley V.
Marschel Ardin H.
Morrison & Foerster / LLP
QLT, Inc. and
University of British Columbia
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