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Due to system migration, all loans will auto-renew to September 30, 2018, unless there is a hold. You will be notified by email if one of your loans has not auto-renewed. Fines will not be charged in this interim period. We are currently experiencing problems with the classic catalogue. We are working to resolve them.

Chemical and Petroleum Engineering

A guide to finding books, articles, and technical information for your coursework in chemical and petroleum engineering.

What is a Patent

A patent is a government grant giving the right to exclude others from making, using or selling an invention. 

Approximately two-thirds of patent information is never disclosed or published elsewhere (Source: WIPO). 

Patent applications are often the first public disclosure of a technology. A Canadian patent is effective only in Canada and is valid for 20 years from the filing date. Patents filed with the United States Patent and Trademark Office expire 20 years from the filing date of the first application.

Patent search engines

Google Patents

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