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Last Updated: January 26, 2023

Details for Patent: 7,814,943

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Summary for Patent: 7,814,943
Title:Apparatus and method for dispensing foam
Abstract: Apparatus for dispensing foam for the treatment of, inter alia, varicose veins. The apparatus includes a source of foam and a dispensing device which has an inlet in communication with the source of foam, a usable foam outlet, and a waste bleed outlet. The waste bleed outlet communicates with the inlet and with the useable foam outlet, and has a higher resistance to flow of foam than that of the usable foam outlet. The useable foam outlet may be blocked off such that foam may flow through the high resistance waste bleed outlet, and the usable foam outlet may be opened such that foam may flow through the usable foam outlet.
Inventor(s): Harman; Anthony David (Henley-on-thames, GB), Wright; David Dakin Iowerth (High Wycombe, GB), Mijers; Jam Willem Marinus (EH Heemstede, NL), Kay; Stuart Brian William (Ickleton, GB), Hurlstone; Christopher John (Ickleton, GB), Dixon; Julian Richard (Ickleton, GB), Pocock; Andrew Gordon (Ickleton, GB), Hogan; Brendan (Co. Galway, IE)
Assignee: BTG International Limited (London, GB)
Application Number:10/571,608
Patent Claim Types:
see list of patent claims
Device; Use;

Drugs Protected by US Patent 7,814,943

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 See Plans and Pricing See Plans and Pricing Y A METHOD OF GENERATING AN INJECTABLE FOAM OF CONTROLLED DENSITY AND BUBBLE SIZE See Plans and Pricing
>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: 7,814,943

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0321210.7Sep 10, 2003
PCT Information
PCT FiledSeptember 09, 2004PCT Application Number:PCT/GB2004/003864
PCT Publication Date:March 17, 2005PCT Publication Number: WO2005/023678

International Family Members for US Patent 7,814,943

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 486023 See Plans and Pricing
Australia 2004270475 See Plans and Pricing
Brazil PI0414281 See Plans and Pricing
Canada 2538172 See Plans and Pricing
China 1878706 See Plans and Pricing
Cyprus 1111096 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim

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