Photopolymerizable silicone materials forming semipermeable membranes for sensor applications
CA 2575238 C · Owner: Maghsoodi, Sina · Inventors: Maghsoodi, Sina; Harkness, Brian Robert; Gardner, Geoffrey Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preparing sensing devices (biosensors) includes the steps of: (1) applying a photopatternable silicone composition to a surface in a sensing device to form a film, (2) photopatterning the film by a process comprising exposing the film to radiation through a photomask without the use of a photoresist to produce an exposed film; (3) removing regions of the nonexposed film with a developing solvent to form a patterned film which forms a , permselective layer or an analyte attenuation layer covering preselected areas of the sensing device.
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 21, 2005 and granted April 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.