Composition comprising r-alpha-lipoic acid and vitamin e for treating diabetes mellitus
CA 2097732 C · Owner: Ulrich, Heinz · Inventors: Weischer, Carl-Heinrich; Ulrich, Heinz; Wessel, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of alpha-lipoic acid, dihydrolipoic acid metabolites of alpha-lipoic acid, inter alia 6,8bisnortetralipoic acid, tetranorlipoic acid optical isomers, R- and S-form of alpha-lipoic acid in oxidized and reduced form in combination with vitamin A, B1 B2, B6, B12, C and E, and their pharmaceutically acceptable salts for the preparation of medicaments with analgesic anti-inflammatory, antidiabetic, cytoprotective anti-ulcer, antinecrotic, neuroprotective detoxifying, anti-ischemic, liver function regulating, anti-allergic, immune-stimulating and antioncogenic effect, corresponding medicaments and their preparation.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 4, 1993 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.