Patent Yard Sign in
Expired Canadian patentCanada

Modafinil compositions

CA 2534664 C · Owner: Transform Pharmaceuticals, Inc. · Inventors: Almarsson, Orn; Hickey, Magali Bourghol; Oliveira, Mark

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Co-crystals and solvates of racemic, enantiomerically pure and , enantiomerically mixed modafinil are formed and several important physical properties are modulated. The solubility dissolution, bioavailability, dose , response and stability of modafinil can be modulated to improve efficacy in pharmaceutical compositions.

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 September 4, 2004 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 4, 2004
GrantedOctober 30, 2012
Term endedSeptember 4, 2024
Patent numberCA 2534664 C
Classification (IPC)C07C317/28

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 4, 2004Patent grantedOct 30, 2012Term endedSep 4, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.