Patent Yard Sign in
Expired Canadian patentCanada

Pharmaceutical co-crystal compositions of drugs such as carbamazeptine, celecoxib, olanzapine, itraconazole, topiramate, modafinil, 5-fluorouracil, hydrochlorothiazide, acetaminophen, aspirin, flurbiprofen, phenytoin and ibuprofen

CA 2513746 C · Owner: University Of South Florida · Inventors: Zaworotko, Michael J.; Peterson, Matthew; Rodriguez-Hornedo, Nair

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

A pharmaceutical composition comprising a co-crystal of an API and a cocrystal forming compound; wherein the API has at least one functional group selected from ether, thioether, alcohol thiol, aldehyde, ketone, thioketone, nitrate ester phosphate ester, thiophosphate ester, ester thioester, sulfate , ester, carboxylic acid phosphonic acid, phosphinic acid, sulfonic acid amide, primary amine, secondary amine, ammonia tertiary amine, sp2 amine, thiocyanate cyanamide, oxime, nitrile diazo, organohalide nitro, s-, heterocyclic ring, thiophene n-heterocyclic ring, pyrrole, oheterocyclic ring, furan, epoxide, peroxide, hydroxamic acid imidazole, pyridine and the , co-crystal forming compound …

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, 2003 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2025.
  • 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, 2003
GrantedAugust 28, 2012
Term endedSeptember 4, 2023
Patent numberCA 2513746 C
Classification (IPC)A61K9/14 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 4, 2003Patent grantedAug 28, 2012Term endedSep 4, 2023

Sources & verification

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