.

Pharmaceutical Business Intelligence

  • Anticipate P&T budget requirements
  • Evaluate market entry opportunities
  • Find generic sources and suppliers
  • Predict branded drug patent expiration

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 8,323,677

« Back to Dashboard
Patent 8,323,677 protects VARITHENA and is included in one NDA.

This patent has fifty-seven 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
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 83rd percentile
Forward Citations: 1st percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Provensis
VARITHENA
polidocanol
SOLUTION;INTRAVENOUS205098-001Nov 25, 2013RXYes8,323,677► subscribeY
This preview shows a limited data set
Subscribe for full access, or try a Trial

Export unavailable in trial.
Subscribe for complete access.

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

Non-Orange Book Patents for Patent: 8,323,677

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
8,734,833Therapeutic foam► subscribe
7,731,986Therapeutic foam► subscribe
7,763,269Therapeutic foam► subscribe
This preview shows a limited data set
Subscribe for full access, or try a Trial

The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

Export unavailable in trial.
Subscribe for complete access.

International Patent Family for Patent: 8,323,677

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Slovenia1701701► subscribe
Slovenia1694292► subscribe
Russian Federation2006121470► subscribe
This preview shows a limited data set
Subscribe for full access, or try a Trial

The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

Export unavailable in trial.
Subscribe for complete access.

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

`abc