System and method for hierarchical device extraction
CA 2209305 C · Owner: Cadence Design Systems, Inc. · Inventors: Rogoyski, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device extractor (120) for extracting devices from a hierarchical cell design (206). The device extractor (120) selects a cell from the lowest level of the hierarchy and searches the cell for the device components. The device extractor (120) searches each cell in the lowest level and then selects a "parent" cell in the penultimate level. The parent cell and all of the , children cells of the parent cell are searched. The selection and search process continues until all of the components of the device (208) are identified in a cell or the children cell of the cell and a proper relationship between the components is determined. The components of the identified device (208) are …
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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 January 11, 1996 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2018.
- 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.