Power and wireless communication unit for process field devices
CA 2563337 C · Owner: Nelson, Richard · Inventors: Brown, Gregory; Fandrey, Mark; Nelson, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless power and communication unit (100 200, 300, 350, 360, 400) for , field devices (14) is configured to connect to a field device (14) and provide operating power and wired digital communication between the unit (100 200, 300, 350, 360, 400) and the field device (14). RF circuitry (366) in the unit (100, 200, 300, 350, 360, 400) is configured for radio frequency communication. In one embodiment, power supply circuitry (365) in the unit includes one or more solar power cells (116) that convert solar energy into electricity to power both the unit (100 200, 300, 350, 360, 400) and the , field device (14). The unit (100 200, 300, 350, 360, 400) interacts with the field device (14) …
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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 May 5, 2005 and granted June 21, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 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.