Corn rootworm control via formation of limonene in transgenic plants
CA 2222023 C · Owner: Pioneer Hi-Bred International, Inc. · Inventors: Meyer, Terry E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Limonene is effective in controlling Southern corn rootworm. It can be applied as a conventional insecticide, or plants can be transformed with a gene which codes for an enzyme which synthesizes limonene from a substrate available in the plant. Transformed plants are resistant to infestation by Southern corn rootworm.
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 May 24, 1996 and granted November 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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.