Mesh network of intelligent devices communicating via powerline and radio frequency
CA 2587440 C · Owner: Walter, Ronald J. · Inventors: Bartley, Donald J.; Walter, Ronald J.; Cregg, Daniel Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low-cost intelligent control and communication devices (21 22, 23, 51, 52) , are arranged to communicate with one another over one or more shared physical media (10, 11), such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master slave or , repeater. Adding more devices makes the system more robust by virtue of a , simple protocol (30, 50 60) for communication retransmissions and retries.
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 1, 2005 and granted August 19, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 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.