Hydrophilic dlc on substrate with oxygen and/or hot water treatment
CA 2519136 C · Owner: Gordon, Jeffrey D. · Inventors: Thomsen, Scott V.; Gordon, Jeffrey D.; Veerasamy, Vijayen S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substrate (1) is coated with a layer(s) or coating(s) (3) that includes for , example, amorphous carbon in a form of diamond-like carbon (DLC). The DLC is then ion beam treated and/or treated with a hot liquid and/or vapor (such as hot water) so as to cause the contact angle 0 thereof to decrease. In certain example embodiments, at least oxygen gas is used in an ion beam source(s) that generates the ion beam(s) used for the ion beam treatment.
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 March 12, 2004 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 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.
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.