Liquid enzyme formulations
CA 2125945 A1 · Owner: Solvay Enzymes Gmbh & Co. Kg · Inventors: Herrmann, Hubert; Hahn, Wilfried; Sander, Vera
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid enzyme formulations which contain the enzyme in the form of aqueous enzyme particle suspension highly, disperse fillers and a liquid alkylene oxide polymer based on ethylenediamine and having a molecular weight in the range from 500 to 8200. The liquid enzyme formulations of the invention may contain any enzyme customarily incorporated in detergents or used for cleaning purposes especially alkaline proteases. Processes for preparing such liquid enzyme formulations and for using them in liquid detergents and/or cleaners are also disclosed.
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 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2016.
- 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.