A hydrocarbon mass flow meter
CA 2117786 C · Owner: Statoilhydro Asa · Inventors: Gaisford, Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A measurement apparatus which utilizes the direct relationship between the density and dielectric constant of hydrocarbon mixtures to significantly improve upon the measurement capabilities of some existing devices used in the petroleum industry. Included among the applications of the apparatus are 1) a multiphase hydrocarbon mass flow meter (120) for usage with multiphase mixtures of oil, water, and gas and 2) a continuously self-calibrating water cut meter for determining the water content of liquid crude oil streams.
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 April 8, 1993 and granted November 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2015.
- 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.