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Last Updated: October 24, 2020

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Details for Patent: 8,323,677

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Which drugs does patent 8,323,677 protect, and when does it expire?

Patent 8,323,677 protects VARITHENA and is included in one NDA.

This patent has sixty-six patent family members in thirty countries.

Summary for Patent: 8,323,677
Title:Therapeutic foam
Abstract: A therapeutic foam for the treatment of, inter alia, varicose veins comprises a sclerosing solution foamed with a physiological gas such as carbon dioxide, oxygen or a mixture thereof. The foam has a nitrogen content of less than 0.8%. It may be generated using a pressurized canister system incorporating a fine mesh of micron dimensions through which the gas and sclerosing liquid are passed to make the foam. Alternatively, the foam may be generated by passing gas and solution between two syringes through a fine mesh. Techniques are described for minimizing the amount of nitrogen in a canister or syringe based product. A technique for generating and delivering foam simultaneously using a syringe based device is also disclosed.
Inventor(s): Wright; David Dakin Iorwerth (Buckinghamshire, GB), Harman; Anthony David (Oxfordshire, GB), Robinson; Nikki (Uxbridge, GB), Hodges; Garry (Middlesex, GB), Kadar; Adil (Middlesex, GB), Moggridge; Geoffrey D. (Cambridge, GB), Van Liew; Hugh (Bamstable, MA)
Assignee: BTG International Ltd. (London, GB)
Application Number:12/765,980
Patent Claim Types:
see list of patent claims

Drugs Protected by US Patent 8,323,677

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Provensis VARITHENA polidocanol SOLUTION;INTRAVENOUS 205098-001 Nov 25, 2013 RX Yes Yes   Start Trial   Start Trial Y   Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,323,677

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0326768.9Nov 17, 2003
United Kingdom0422307.9Oct 7, 2004

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