Patent Yard Sign in
Expired Canadian patentCanada

Bioreactor and bioprocessing technique

CA 2419474 C · Owner: University Of Maryland Biotechnology Institute · Inventors: Rao, Govind

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

The invention bioprocessing system and technique relies on non-invasive optical chemical sensing technology wherein an optical excitation source excites an optical chemical sensor. The optical chemical sensor then emits luminescence or absorbs light which is measured by a detector. The luminescence emitted from the chemical sensor or the amount of light absorbed by the chemical sensor is related to the concentration of an analyte such as , oxygen. If the luminescence emitted changes or if the amount of light , absorbed changes then the concentration of the analyte has changed. Using such a system to measure and adjust multiple parameters at one time allows one to efficiently and …

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 August 14, 2001 and granted October 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 14, 2001
GrantedOctober 22, 2013
Term endedAugust 14, 2021
Patent numberCA 2419474 C
Classification (IPC)C12Q1/02 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 14, 2001Patent grantedOct 22, 2013Term endedAug 14, 2021

Sources & verification

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